Skill: futurizerush/ai-common-sense (version 0.1.1)

--- name: ai-common-sense description: | Use when user mentions model names, versions, pricing, API IDs, "which model should I use", "what's the latest model", "model comparison", "API pricing", "what models are available", "哪個模型最新", "模型比較", "API 定價", or when generating code that references specific AI model IDs. version: 0.1.1 allowed-tools: Bash, Read, WebSearch, WebFetch --- # AI Common Sense: Stop Hallucinating Model Names LLMs frequently hallucinate model names, versions, pricing, and API identifiers because their training data has a cutoff date. This skill provides a verified quick reference and teaches AI agents how to self-verify when the reference may be stale. ## Why This Exists | What LLMs Commonly Get Wrong | Example | |------------------------------|---------| | **Outdated flagship models** | Saying "GPT-4o" when GPT-5.4 is current | | **Deprecated model IDs** | Using `claude-3-5-sonnet-20241022` (deprecated Jan 2026) | | **Wrong pricing** | Quoting old rates that changed months ago | | **Phantom models** | Referencing "GPT-4-turbo" or "Gemini Ultra" (deprecated/renamed) | | **Wrong API format** | Using `Authorization: Bearer` for Anthropic (should be `x-api-key`) | | **Stale deprecation status** | Not knowing DALL-E 3 is shutting down | ## Quick Reference (Last verified: 2026-04-12) ### Current Flagship Models | Provider | Flagship | API ID | Input $/MTok | Output $/MTok | Released | |----------|----------|--------|-------------|--------------|----------| | **OpenAI** | GPT-5.4 | `gpt-5.4` | $2.50 | $15.00 | 2026-03-17 | | **OpenAI** | GPT-5.4 Mini | `gpt-5.4-mini` | $0.75 | $4.50 | 2026-03-17 | | **OpenAI** | GPT-5.4 Nano | `gpt-5.4-nano` | $0.20 | $1.25 | 2026-03-17 | | **OpenAI** | o3 (reasoning) | `o3` | $2.00 | $8.00 | 2025-04 | | **Anthropic** | Claude Opus 4.6 | `claude-opus-4-6` | $5.00 | $25.00 | 2026-02-05 | | **Anthropic** | Claude Sonnet 4.6 | `claude-sonnet-4-6` | $3.00 | $15.00 | 2026-02-17 | | **Anthropic** | Claude Haiku 4.5 | `claude-haiku-4-5-20251001` | $1.00 | $5.00 | 2025-10 | | **Google** | Gemini 3.1 Pro | `gemini-3-1-pro-latest` | $2.00 | $12.00 | 2026-02-19 | | **Google** | Gemini 3 Flash | `gemini-3-flash-latest` | $0.50 | $3.00 | 2026-03 | | **Google** | Gemini 2.5 Flash-Lite | `gemini-2.5-flash-lite` | $0.10 | $0.40 | 2025 | | **Meta** | Llama 4 Maverick | `meta-llama/llama-4-maverick` | varies | varies | 2026-04-05 | | **Mistral** | Small 4 | `mistral-small-latest` | $0.15 | $0.60 | 2026-03-16 | | **Mistral** | Large 3 | `mistral-large-latest` | $2.00 | $6.00 | 2025-12 | | **DeepSeek** | V3 | `deepseek-chat` | $0.32 | $0.89 | 2025 | | **DeepSeek** | R1 (reasoning) | `deepseek-reasoner` | — | — | 2025 | | **Cohere** | Command A Reasoning | `command-a-reasoning` | ~$6.25 | — | 2026 | ### Recently Deprecated (Do NOT Use) | Model | Provider | Deprecated | Replacement | |-------|----------|-----------|-------------| | GPT-4o | OpenAI | 2026-02-13 | GPT-5.4 | | GPT-4.1 | OpenAI | 2026-02-16 | GPT-5.4 | | DALL-E 2 & 3 | OpenAI | 2026-05-12 | gpt-image-1.5 | | Claude 3.5 Sonnet | Anthropic | 2026-01-05 | Sonnet 4.6 | | Claude Haiku 3.5 | Anthropic | 2026-02-19 | Haiku 4.5 | | Claude Haiku 3 | Anthropic | 2026-04-20 | Haiku 4.5 | ### Upcoming / Announced (NOT Yet Available) | Model | Provider | Expected | Notes | |-------|----------|----------|-------| | GPT-5.5 "Spud" | OpenAI | 2026 Q2 | Pretraining done 2026-03-24. | | Claude Mythos | Anthropic | Preview only | Invitation-only. Cybersecurity. | | DeepSeek V4 | DeepSeek | 2026 | ~1T params, 1M context. | | Grok 5 | xAI | 2026 Q2 | ~6T params. | | Muse Spark | Meta | 2026-04 | Meta's first proprietary/closed-source model. | ## How to Use This Reference ### For AI Agents 1. **Before generating code with model IDs**: Check this reference for the correct API ID. 2. **Before quoting pricing**: Check this reference. Pricing changes frequently. 3. **Staleness check**: If the "Last verified" date is older than 30 days, use WebSearch to verify before trusting these numbers. 4. **When uncertain**: Say "based on my last verified reference from [date]" rather than stating as current fact. ### Staleness Detection ``` IF (today - last_verified_date) > 30 days: → WebSearch "[provider] models pricing [current year]" → Cross-reference with this table → Note any discrepancies → Flag to user: "My reference is [N] days old, I verified via web search" ``` ### When NOT to Trust This Reference - Model pricing can change without notice - New models may launch between updates - Deprecation dates may shift - "Upcoming" models may be delayed or cancelled ## Verification Commands When you need to verify current model information, use these tools: **Web search queries** (use WebSearch tool): - OpenAI models: `site:platform.openai.com models` - Anthropic models: `site:docs.anthropic.com models` - Google Gemini: `site:ai.google.dev models` - Pricing (any provider): `[provider] API pricing [current year]` - Specific model ID: `"[exact-model-id]" API` - Deprecation status: `[provider] model deprecation [current year]` ### SDK Version Check ```bash # OpenAI npm info openai version pip show openai | grep Version # Anthropic npm info @anthropic-ai/sdk version pip show anthropic | grep Version # Google npm info @google/generative-ai version pip show google-generativeai | grep Version ``` ## Cost Comparison (Budget → Premium) Sorted by input cost per million tokens: | Rank | Model | Provider | Input $/MTok | Best For | |------|-------|----------|-------------|----------| | 1 | Gemini 2.5 Flash-Lite | Google | $0.10 | Cheapest multimodal | | 2 | Mistral Small 4 | Mistral | $0.15 | Cheap + reasoning + vision | | 3 | GPT-5.4 Nano | OpenAI | $0.20 | Classification, extraction | | 4 | DeepSeek V3 | DeepSeek | $0.32 | Coding, long context | | 5 | Gemini 3 Flash | Google | $0.50 | Balanced Google option | | 6 | GPT-5.4 Mini | OpenAI | $0.75 | OpenAI balanced | | 7 | Claude Haiku 4.5 | Anthropic | $1.00 | Fast Anthropic option | | 8 | Gemini 2.5 Pro | Google | $1.25 | Advanced Google | | 9 | Gemini 3.1 Pro | Google | $2.00 | Frontier reasoning | | 10 | Mistral Large 3 | Mistral | $2.00 | 675B MoE | | 11 | o3 | OpenAI | $2.00 | Complex reasoning | | 12 | GPT-5.4 | OpenAI | $2.50 | OpenAI flagship | | 13 | Claude Sonnet 4.6 | Anthropic | $3.00 | Anthropic balanced | | 14 | Claude Opus 4.6 | Anthropic | $5.00 | Most capable coding/agents | ## Architecture Quick Facts | Architecture | Models Using It | Why It Matters | |-------------|----------------|----------------| | **MoE (Mixture of Experts)** | Mistral Large 3 (675B/41B), DeepSeek V3 (671B/37B), Llama 4 Maverick (17B/128 experts) | Massive total params but only a fraction active per token → cheaper inference. | | **Dense Transformer** | GPT-5.4, Claude Opus 4.6, Gemini 3.1 Pro | All params active. Higher per-token cost but potentially more consistent. | ## Common Discount Mechanisms | Mechanism | Discount | Available On | |-----------|----------|-------------| | **Prompt Caching** | 75-90% on cached input | OpenAI, Anthropic, Google | | **Batch API** | 50% on all tokens | OpenAI, Anthropic, Google | | **Committed Use** | Varies | Enterprise agreements | ## Per-Provider Deep Dives For detailed model specs, deprecation timelines, cross-platform IDs, and API quick-start examples, see the `references/` directory in the GitHub repo: - `references/openai.md` — Full OpenAI model catalog + audio/image models - `references/anthropic.md` — Cross-platform IDs (Bedrock, Vertex) + cache pricing - `references/google.md` — Gemini 3.x + 2.5 + specialized models - `references/meta.md` — Llama 4 MoE details + access methods - `references/mistral.md` — Full specialist model catalog (Devstral, Voxtral, OCR) - `references/deepseek.md` — V3 MoE details + V4 roadmap - `references/xai.md` — Grok versions + corporate context - `references/cohere.md` — Command A + open-source models (Transcribe, Tiny Aya) ## How to Update This Reference This reference gets stale. Here's how to help: 1. **Found an error?** Open an Issue on GitHub with the correction and source URL. 2. **New model released?** Submit a PR updating the relevant `references/*.md` file. 3. **Pricing changed?** Submit a PR with the new price and a link to the official pricing page. Every update must include: - The source URL (official docs preferred) - The date you verified the information - What changed and why ## Tips - The more confident an LLM sounds about a model name, the more likely it's hallucinating from training data. - "I'm not sure which model is current — let me check" is always better than a confident wrong answer. - Model IDs are exact strings. `gpt-5.4` works; `GPT-5.4` or `gpt5.4` may not. - Always test API calls with the actual model ID before deploying.

path: CONTRIBUTING.md
content: # Contributing to AI Common Sense

Model information gets stale fast. Your contributions keep this reference accurate.

## What to Contribute

- **New model releases** — A provider launched a new model
- **Pricing changes** — API pricing was updated
- **Deprecations** — A model was deprecated or shutdown date announced
- **Corrections** — You found an error in our reference
- **New providers** — A major AI provider we don't cover yet

## How to Submit an Update

### Option 1: Open an Issue

If you found an error or a new model was released but don't want to edit files:

1. Open an Issue
2. Include: what changed, the source URL, the date you verified it

### Option 2: Submit a PR

1. Fork the repo
2. Edit the relevant file in `references/` (one file per provider)
3. Follow the format below
4. Submit a PR with a clear title (e.g., "Update OpenAI: add GPT-5.5")

## Format Requirements

### For model entries in `references/*.md`

Every model entry must include:
- **Model name** — Official name from the provider
- **API ID** — The exact string used in API calls
- **Release date** — When it became generally available
- **Pricing** — Per million tokens (input and output separately)
- **Source** — Where you verified this information

### Update the "Last verified" date

At the top of each `references/*.md` file:

```markdown
> Last verified: YYYY-MM-DD
> Source: [official docs URL]
```

Update this date when you verify or change information.

### For the Quick Reference in SKILL.md

If a model is important enough for the quick reference table (top ~15 models), also update `skills/ai-common-sense/SKILL.md`.

## Quality Standards

- **Official sources preferred** — Provider docs, blog posts, pricing pages
- **Third-party sources acceptable** — When official sources don't exist (e.g., xAI)
- **No speculation** — Don't add unannounced models. "Upcoming" section is for officially announced models only.
- **Exact API IDs** — Test them if possible. `gpt-5.4` and `GPT-5.4` are different strings.
- **Date everything** — Every piece of information should have a verification date.

## What NOT to Contribute

- Benchmark comparisons (too subjective and volatile)
- Opinion on which model is "best"
- Unverified rumors about upcoming models
- Marketing claims without technical substance


path: anthropic.md
content: # Anthropic Models Reference

> Last verified: 2026-04-12
> Source: https://docs.anthropic.com/en/docs/about-claude/models, https://docs.anthropic.com/en/docs/about-claude/pricing

## Current Models

| Model | API ID | Released | Input $/MTok | Output $/MTok | Context | Max Output | Knowledge Cutoff |
|-------|--------|----------|-------------|--------------|---------|-----------|-----------------|
| Claude Opus 4.6 | `claude-opus-4-6` | 2026-02-05 | $5.00 | $25.00 | 1M | 128K (300K batch) | May 2025 |
| Claude Sonnet 4.6 | `claude-sonnet-4-6` | 2026-02-17 | $3.00 | $15.00 | 1M | 64K (300K batch) | Aug 2025 |
| Claude Haiku 4.5 | `claude-haiku-4-5-20251001` | 2025-10 | $1.00 | $5.00 | 200K | 64K | Feb 2025 |

### Cross-Platform IDs

| Model | Claude API | AWS Bedrock | GCP Vertex AI |
|-------|-----------|-------------|---------------|
| Opus 4.6 | `claude-opus-4-6` | `anthropic.claude-opus-4-6-v1` | `claude-opus-4-6` |
| Sonnet 4.6 | `claude-sonnet-4-6` | `anthropic.claude-sonnet-4-6` | `claude-sonnet-4-6` |
| Haiku 4.5 | `claude-haiku-4-5-20251001` | `anthropic.claude-haiku-4-5-20251001-v1:0` | `claude-haiku-4-5@20251001` |

### Research Preview

| Model | Status | Notes |
|-------|--------|-------|
| Claude Mythos Preview | Invitation-only | Available via Project Glasswing. Defensive cybersecurity only. Announced 2026-04-07. |

## Recently Deprecated

| Model | API ID | Deprecated | Replacement |
|-------|--------|-----------|-------------|
| Claude Haiku 3.5 | `claude-3-5-haiku-20241022` | 2026-02-19 | Haiku 4.5 |
| Claude Sonnet 3.5 | `claude-3-5-sonnet-20241022` | 2026-01-05 | Sonnet 4.6 |
| Claude Sonnet 3.7 | — | 2025-10-28 | Sonnet 4.5 |
| Claude Opus 3 | `claude-3-opus-20240229` | 2026-01-05 | Opus 4.6 |
| Claude Haiku 3 | `claude-3-haiku-20240307` | 2026-04-20 (scheduled) | Haiku 4.5 |

## Pricing Details

| Feature | Multiplier | Notes |
|---------|-----------|-------|
| 5-min cache write | 1.25x input | Cached prefix reuse. |
| 1-hour cache write | 2x input | Longer cache TTL. |
| Cache read (hit) | 0.1x input | 90% savings on cached input. |
| Batch API | 0.5x all | 50% discount. Non-time-sensitive. |
| Fast Mode (Opus 4.6) | 6x all | $30/$150 MTok. Beta. |

## API Quick Start

```bash
curl https://api.anthropic.com/v1/messages \
  -H "x-[REDACTED_SECRET]" \
  -H "anthropic-version: 2023-06-01" \
  -H "content-type: application/json" \
  -d '{
    "model": "claude-sonnet-4-6",
    "max_tokens": 1024,
    "messages": [{"role": "user", "content": "Hello"}]
  }'
```

## Common Hallucinations

| What LLMs Say | Reality (as of 2026-04-11) |
|---------------|---------------------------|
| "Claude 3.5 Sonnet" or "Claude 3 Opus" | Deprecated. Current: Opus 4.6, Sonnet 4.6, Haiku 4.5. |
| Model ID `claude-3-opus` | Old format. Current: `claude-opus-4-6` (no "3" prefix). |
| "Claude 4" (no sub-version) | Ambiguous. Specify: Opus 4.6, Sonnet 4.6, or Haiku 4.5. |
| "100K context window" | Opus/Sonnet have 1M tokens. Haiku has 200K. |
| Header `Authorization: Bearer` | Wrong. Anthropic uses `x-api-key` header, not Bearer token. |
| "Claude Sonnet is cheaper than Haiku" | Wrong. Haiku $1/$5, Sonnet $3/$15. Haiku is cheapest. |


path: cohere.md
content: # Cohere Models Reference

> Last verified: 2026-04-11
> Source: https://cohere.com/pricing, https://docs.cohere.com/changelog

## Current Models

### Text Generation

| Model | Released | Params | Context | Notes |
|-------|----------|--------|---------|-------|
| Command A Reasoning | 2026 | 111B | 256K | Hybrid reasoning for agentic tasks. 23 languages. |
| Command A Translate | 2026 | — | — | State-of-the-art machine translation. 23 languages. |

### Audio

| Model | Released | Params | Notes |
|-------|----------|--------|-------|
| Cohere Transcribe | 2026-03-26 | 2B | #1 on HuggingFace Open ASR Leaderboard (5.42% WER). Open source. Runs locally. |

### Other

| Model | Type | Notes |
|-------|------|-------|
| Rerank 4.0 | Ranking | Latest ranking model. |
| Tiny Aya | Multilingual | 70+ languages. Open-weight. Runs on laptops. Released Feb 2026. |
| Embed v3 | Embeddings | Multilingual embeddings. |

## Pricing

- Per-token pricing (input/output differentiated)
- Trial API key: Free with rate limits
- Production: Pay-as-you-go
- Command A Reasoning: ~$6.25/MTok estimated (aggregate)
- Available through Cohere API and cloud providers

## API Quick Start

```bash
curl https://api.cohere.com/v2/chat \
  -H "Authorization: Bearer $COHERE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "command-a-reasoning",
    "messages": [{"role": "user", "content": "Hello"}]
  }'
```

## Common Hallucinations

| What LLMs Say | Reality (as of 2026-04-11) |
|---------------|---------------------------|
| "Command R+" or "Command R" | Previous generation. Current: Command A Reasoning. |
| "Cohere is text-only" | Has Transcribe (audio), Embed (embeddings), Rerank (search). |
| "Cohere doesn't have open-source models" | Transcribe and Tiny Aya are open-source. |


path: deepseek.md
content: # DeepSeek Models Reference

> Last verified: 2026-04-12
> Source: https://deepseek.com, third-party pricing aggregators

## Current Models

| Model | Type | Params (Total/Active) | Input $/MTok | Output $/MTok | Context | Notes |
|-------|------|----------------------|-------------|--------------|---------|-------|
| DeepSeek-R1 | Reasoning | — | — | — | — | OpenAI o1-level reasoning. |
| DeepSeek-V3 | General | 671B / 37B active | $0.32 | $0.89 | 200K | MoE. Superior coding. |
| DeepSeek-V3.2-Speciale | Advanced | — | — | — | — | Peak human-expert proficiency. |
| DeepSeek-VL2 | Multimodal | — | — | — | — | Efficient vision-language. |

## Upcoming / Announced

| Model | Expected | Notes |
|-------|----------|-------|
| DeepSeek V4 | 2026 Q1-Q2 | ~1T params MoE, ~37B active. 1M context (Engram memory). Native multimodal. Claims to outperform Claude/ChatGPT on long-context coding. |

## Key Features

- **Cost leadership**: Input at $0.32/MTok, significantly cheaper than most competitors
- **MoE efficiency**: 671B total but only 37B active per token
- **Long context**: 200K tokens (V4 targeting 1M)
- **Partially open**: Some models available on Hugging Face

## Access

Available through:
- DeepSeek API (api.deepseek.com)
- Multiple third-party providers
- Self-hosting (open-weight variants)

## API Quick Start

```bash
curl https://api.deepseek.com/chat/completions \
  -H "Authorization: Bearer $DEEPSEEK_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "deepseek-chat",
    "messages": [{"role": "user", "content": "Hello"}]
  }'
```

## Common Hallucinations

| What LLMs Say | Reality (as of 2026-04-11) |
|---------------|---------------------------|
| "DeepSeek Coder" as separate model | DeepSeek-V3 handles coding. DeepSeek Coder was an earlier release. |
| "DeepSeek is expensive" | Among the cheapest: $0.32/MTok input (standard rate). |
| "DeepSeek V2 is latest" | V3 and V3.2-Speciale are current. V4 upcoming. |
| "DeepSeek only does text" | VL2 is multimodal. V4 will be natively multimodal. |


path: google.md
content: # Google Gemini Models Reference

> Last verified: 2026-04-11
> Source: https://ai.google.dev/gemini-api/docs/models, https://ai.google.dev/gemini-api/docs/pricing

## Current Models

### Gemini 3.x (Latest Generation)

| Model | API ID | Released | Input $/MTok | Output $/MTok | Context | Notes |
|-------|--------|----------|-------------|--------------|---------|-------|
| Gemini 3.1 Pro Preview | `gemini-3-1-pro-latest` | 2026-02-19 | $2.00 | $12.00 | — | Flagship reasoning. 77.1% ARC-AGI-2. |
| Gemini 3 Flash | `gemini-3-flash-latest` | 2026-03 | $0.50 | $3.00 | — | Default in Gemini app. |
| Gemini 3.1 Flash-Lite Preview | `gemini-3-1-flash-lite-latest` | 2026 | $0.25 | $1.50 | — | Cost-effective frontier. |
| Gemini 3.1 Flash Live Preview | — | 2026 | — | — | — | Real-time / low-latency. |

### Gemini 2.5 (Previous Generation, Still Available)

| Model | API ID | Input $/MTok | Output $/MTok | Notes |
|-------|--------|-------------|--------------|-------|
| Gemini 2.5 Pro | `gemini-2.5-pro` | $1.25 | $10.00 | Advanced general-purpose. |
| Gemini 2.5 Flash | `gemini-2.5-flash` | $0.30 | $2.50 | Best price-performance. |
| Gemini 2.5 Flash-Lite | `gemini-2.5-flash-lite` | $0.10 | $0.40 | Cheapest multimodal. |

### Specialized Models

| Model | Type | Notes |
|-------|------|-------|
| Veo 3.1 | Video generation | — |
| Lyria 3 | Music generation | — |
| Gemini Deep Think | Enhanced reasoning | Mode for 3.1 Pro. |
| Computer Use Preview | UI automation | — |
| Deep Research Preview | Agentic research | — |

## Pricing Notes

| Feature | Discount | Notes |
|---------|----------|-------|
| Context caching | Up to 90% | Repeated prefix optimization. |
| Batch API | 50% | Non-time-sensitive. |
| Extended context (200K+) | 2x price | Doubled pricing for long context. |
| Free tier | Rate-limited | Via Google AI Studio: 2.5 Flash, Flash-Lite, 3.1 Flash-Lite. |

**April 2026 change:** Mandatory spending caps enforced. Pro models restricted for free users. Prepaid billing required for new accounts.

## API Quick Start

```bash
curl "https://generativelanguage.googleapis.com/v1beta/models/gemini-2.5-flash:generateContent?key=$GOOGLE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"contents": [{"parts": [{"text": "Hello"}]}]}'
```

## Common Hallucinations

| What LLMs Say | Reality (as of 2026-04-11) |
|---------------|---------------------------|
| "Gemini Pro 1.5" or "Gemini Ultra" | Outdated. Current: Gemini 3.1 Pro, 3 Flash, 2.5 Pro/Flash. |
| "Bard" | Bard was rebranded to Gemini in 2024. |
| Model ID `gemini-pro` | Ambiguous/old. Use versioned IDs: `gemini-3-1-pro-latest`. |
| "PaLM 2" | Deprecated. Replaced by Gemini family. |
| "Gemini 1.0" | Multiple generations ago. Current is 3.x. |


path: meta.md
content: # Meta Llama Models Reference

> Last verified: 2026-04-12
> Source: https://ai.meta.com/blog/llama-4-multimodal-intelligence/

## Current Models

### Llama 4 (Latest — Natively Multimodal)

| Model | API ID (HuggingFace) | Released | Active Params | Total Params | Experts | Context | Notes |
|-------|---------------------|----------|--------------|-------------|---------|---------|-------|
| Llama 4 Maverick | `meta-llama/llama-4-maverick` | 2026-04-05 | 17B | — | 128 | 256K | Beats GPT-4o and Gemini 2.0 Flash on multimodal benchmarks. |
| Llama 4 Scout | `meta-llama/llama-4-scout` | 2026-04 | 17B | — | 16 | — | Best-in-class multimodal. |
| Llama 4 Behemoth | — | 2026 | 288B | — | 16 | — | Largest variant. |

### Llama 3 (Previous Generation)

| Model | Notes |
|-------|-------|
| Llama 3.3 70B | Still available on many platforms. |
| Llama 3.1 405B | Largest open Llama 3. |

## Access

Llama 4 is available through:
- Meta's AI assistant interface
- Cloud providers (Oracle Cloud, AI/ML API, etc.)
- Hugging Face (some variants)
- **NOT** fully open-source like Llama 3 — access restrictions apply

## Important Change: Proprietary Shift

Meta launched **Muse Spark** (April 2026) — their **first proprietary, closed-source model**, led by Chief AI Officer Alexandr Wang. This marks a departure from the open-source Llama tradition.

## Pricing

Llama models don't have direct pricing from Meta. Pricing depends on the hosting provider:

| Provider | Approximate Cost | Notes |
|----------|-----------------|-------|
| Together AI | ~$0.20-0.90/MTok | Varies by model size. |
| Fireworks AI | ~$0.20-1.00/MTok | — |
| AWS Bedrock | Varies | On-demand and provisioned. |
| Self-hosted | Compute cost only | Requires GPU infrastructure. |

## Common Hallucinations

| What LLMs Say | Reality (as of 2026-04-11) |
|---------------|---------------------------|
| "Llama 2 70B" or "Llama 2" | Two generations old. Current is Llama 4. |
| "Llama 3 is the latest" | Llama 4 released April 2026. |
| "Llama is fully open source" | Llama 4 has access restrictions. Meta also launched closed-source Muse Spark. |
| "Meta doesn't make proprietary models" | Muse Spark (April 2026) is proprietary/closed-source. |
| "Llama 3 70B is the biggest" | Llama 3.1 405B exists. Llama 4 Behemoth has 288B active params. |


path: mistral.md
content: # Mistral AI Models Reference

> Last verified: 2026-04-12
> Source: https://docs.mistral.ai/getting-started/models, https://mistral.ai/pricing

## Current Models

### Frontier Generalist

| Model | API ID | Released | Input $/MTok | Output $/MTok | Params | Context | Notes |
|-------|--------|----------|-------------|--------------|--------|---------|-------|
| Mistral Large 3 | `mistral-large-latest` | 2025-12 | $2.00 | $6.00 | 675B total / 41B active | 128K | MoE. Most capable. |
| Mistral Medium 3.1 | `mistral-medium-latest` | 2025-08 | $0.40 | $2.00 | — | 128K | Frontier multimodal. |
| Mistral Small 4 | `mistral-small-latest` | 2026-03-16 | $0.15 | $0.60 | — | 128K | Unified: reasoning + multimodal + coding. Configurable reasoning effort. |

### Smaller Models

| Model | API ID | Notes |
|-------|--------|-------|
| Mistral Small 3.2 | `mistral-small-3.2` | Efficient. |
| Ministral 14B | — | 2025-12 variant. |
| Ministral 8B | — | Lightweight. |
| Ministral 3B | — | Edge/mobile. |

### Specialist Models

| Model | Type | Released | Notes |
|-------|------|----------|-------|
| Devstral 2 | Code | 2026 | Frontier software engineering. |
| Voxtral TTS | Text-to-speech | 2026-03-26 | Zero-shot voice cloning. 9 languages. Open source. |
| Voxtral Mini Transcribe | Speech-to-text | 2026 | — |
| Codestral | Code generation | 2025 | — |
| Magistral | Reasoning | 2025 | — |
| Pixtral | Multimodal/vision | 2025 | — |
| Mistral Embed | Embeddings | — | — |
| Mistral OCR 3 | OCR | 2026 | Optical character recognition. |

## Key Features

- All models: 128K context, vision capable, 40+ languages
- Apache 2.0 license for all models
- GDPR-compliant EU hosting (free tier available)

## API Quick Start

```bash
curl https://api.mistral.ai/v1/chat/completions \
  -H "Authorization: Bearer $MISTRAL_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "mistral-small-latest",
    "messages": [{"role": "user", "content": "Hello"}]
  }'
```

## Common Hallucinations

| What LLMs Say | Reality (as of 2026-04-11) |
|---------------|---------------------------|
| "Mistral 7B" or "Mixtral 8x7B" | Several generations old. Current: Small 4, Medium 3.1, Large 3. |
| "Mistral is only open source" | Mistral has both open-source models and a commercial API platform. |
| "Mistral Large has 70B params" | Large 3 has 675B total / 41B active (MoE). |
| Model ID `mistral-tiny` | Outdated. Current smallest is Ministral 3B. |


path: openai.md
content: # OpenAI Models Reference

> Last verified: 2026-04-12
> Source: https://platform.openai.com/docs/models, https://openai.com/pricing

## Current Models

### Text / Chat

| Model | API ID | Released | Input $/MTok | Output $/MTok | Context | Notes |
|-------|--------|----------|-------------|--------------|---------|-------|
| GPT-5.4 | `gpt-5.4` | 2026-03-17 | $2.50 | $15.00 | 272K | Flagship. Native computer-use. |
| GPT-5.4 Pro | `gpt-5.4-pro` | 2026-03-17 | $30.00 | $180.00 | 272K | Enterprise tier. |
| GPT-5.4 Mini | `gpt-5.4-mini` | 2026-03-17 | $0.75 | $4.50 | — | 2x faster than GPT-5 mini. |
| GPT-5.4 Nano | `gpt-5.4-nano` | 2026-03-17 | $0.20 | $1.25 | — | Classification, extraction, sub-agents. |
| GPT-5.3 | `gpt-5.3` | 2026-Q1 | — | — | — | Previous flagship. Instant + Thinking variants. |

### Reasoning (o-series)

| Model | API ID | Released | Input $/MTok | Output $/MTok | Notes |
|-------|--------|----------|-------------|--------------|-------|
| o3 | `o3` | 2025-04 | $2.00 | $8.00 | Most powerful reasoning. |
| o4-mini | `o4-mini` | 2025-04-16 | — | — | Retired from ChatGPT 2026-02-13, still in API. |

### Image Generation

| Model | API ID | Released | Notes |
|-------|--------|----------|-------|
| GPT Image 1.5 | `gpt-image-1.5` | 2026 | Replaces DALL-E 3. |
| GPT Image 1 Mini | `gpt-image-1-mini` | 2026 | Lightweight variant. |

### Audio

| Model | API ID | Type | Notes |
|-------|--------|------|-------|
| GPT-4o Transcribe | `gpt-4o-transcribe` | STT | Improved WER over Whisper v3. |
| GPT-4o Mini Transcribe | `gpt-4o-mini-transcribe` | STT | Lightweight. |
| GPT-4o Mini TTS | `gpt-4o-mini-tts` | TTS | Customizable voice directions. |
| TTS-1 | `tts-1` | TTS | Standard. |
| TTS-1 HD | `tts-1-hd` | TTS | High-definition. |
| Whisper-1 | `whisper-1` | STT | Legacy, being superseded. |

## Recently Deprecated

| Model | API ID | Deprecated | Replacement |
|-------|--------|-----------|-------------|
| GPT-4o | `gpt-4o` | 2026-02-13 | GPT-5.4 |
| GPT-4.1 | `gpt-4.1` | 2026-02-13 | GPT-5.4 |
| GPT-4.1 Mini | `gpt-4.1-mini` | 2026-02 | GPT-5.4-mini |
| GPT-5.1 (ChatGPT) | — | 2026-03-11 | GPT-5.3 |
| DALL-E 2 | `dall-e-2` | 2026-05-12 (scheduled) | gpt-image-1.5 |
| DALL-E 3 | `dall-e-3` | 2026-05-12 (scheduled) | gpt-image-1.5 |

## Upcoming / Announced

| Model | Expected | Notes |
|-------|----------|-------|
| GPT-5.5 ("Spud") | 2026 Q2 | Pretraining completed 2026-03-24. 78% probability by April 30 per Polymarket. |

## Pricing Discounts

| Feature | Discount | Notes |
|---------|----------|-------|
| Prompt Caching | 90% off cached input | Automatic for repeated prefixes. |
| Batch API | 50% off all tokens | 24-hour turnaround. Non-time-sensitive. |
| Regional Processing | +10% uplift | Data residency compliance on 5.4 family. |

## API Quick Start

```bash
curl https://api.openai.com/v1/chat/completions \
  -H "Authorization: Bearer $OPENAI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-5.4-mini",
    "messages": [{"role": "user", "content": "Hello"}]
  }'
```

## Common Hallucinations

| What LLMs Say | Reality (as of 2026-04-11) |
|---------------|---------------------------|
| "GPT-4o is the latest" | GPT-4o was deprecated 2026-02-13. Current flagship is GPT-5.4. |
| "GPT-4-turbo" | Deprecated. Use gpt-5.4-mini for cost-efficient tasks. |
| "DALL-E 3 for images" | DALL-E 3 shutting down 2026-05-12. Use gpt-image-1.5. |
| Model ID `gpt-5.4-turbo` | Does not exist. The tiers are: nano, mini, standard, pro. |
| "o1 for reasoning" | o1 superseded by o3 and o4-mini. |


path: xai.md
content: # xAI Grok Models Reference

> Last verified: 2026-04-11
> Source: Third-party reports (xAI does not publish comprehensive public docs)

## Current Models

| Model | Released | Notes |
|-------|----------|-------|
| Grok 4.20 Beta 2 | 2026-03-03 | Current flagship. Multi-agent architecture. |
| Grok 4.20 | 2026-02-17 | Previous version. |

### Specialized

| Model | Released | Notes |
|-------|----------|-------|
| Grok Imagine 1.0 | 2026-02-02 | Video generation: 10s, 720p, with audio. |

## Upcoming / Announced

| Model | Expected | Notes |
|-------|----------|-------|
| Grok 5 | 2026 Q2 | ~6T parameters. Trained on Colossus 2 supercluster. Prediction market: 33% chance by June 30. |

## Access

- Primarily through X (Twitter) platform integration
- SuperGrok subscription tier for higher limits
- **No public API pricing documentation found** as of 2026-04-11

## Corporate Note

SpaceX acquired xAI in February 2026.

## Common Hallucinations

| What LLMs Say | Reality (as of 2026-04-11) |
|---------------|---------------------------|
| "Grok 2" or "Grok 1.5" | Several versions old. Current: Grok 4.20 Beta 2. |
| "Grok has a public API" | Limited. Primarily accessed via X platform. |
| "xAI is independent" | SpaceX acquired xAI in Feb 2026. |
| "Grok is open source" | Grok 1 was open-sourced; later versions are not. |


Security scan verdicts — ClawScan: clean | static analysis: clean | VirusTotal: clean | SkillSpector: clean (LOW)