FinoCode-7B โ€” The IaC Specialist of the FinOptix family

FinoCode-7B is the infrastructure-as-code specialist of the FinOptix model family. Fine-tuned on Qwen 2.5 Coder 7B, it audits and generates Terraform, AWS CDK (TypeScript & Python), and CloudFormation with FinOps best practices baked in โ€” rightsizing, mandatory tags, Graviton, lifecycle policies, encryption.

Where FinOptix-14B is the full FinOps architect (cost analysis, architecture graph, dbt, incident triage), FinoCode-7B writes and fixes the actual IaC code โ€” it's built on a Coder base precisely for that.

  • 16-bit model: ccortezb/FinoCode-7B (this repo)
  • GGUF (Ollama / llama.cpp): ccortezb/FinoCode-7B-GGUF โ€” Q4_K_M (4.7GB) and Q6_K (6.3GB)

What it does

Capability Detail
Terraform Audit + refactor + generation (rightsizing, Graviton, gp2โ†’gp3, S3 lifecycle, RDS, tags)
AWS CDK (TypeScript) Audit constructs + generate cost-optimal ones (ARM64, log retention, PAY_PER_REQUEST)
AWS CDK (Python) Same, Python-native (EC2 Graviton, S3 lifecycle, tags)
CloudFormation YAML audit + corrected templates (EC2, S3, Lambda, RDS, ECS Fargate, SQS DLQ)

Every recommendation follows the FinOps framework (Inform โ†’ Optimize โ†’ Operate) and outputs valid, properly-indented code.


Training

Parameter Value
Base model Qwen/Qwen2.5-Coder-7B-Instruct (4-bit via Unsloth)
Method QLoRA (r=16, ฮฑ=32, dropout=0.05)
Framework Unsloth + TRL (SFTTrainer)
Dataset 400 examples IaC-heavy (200 Terraform + 100 CloudFormation + 60 CDK TS + 40 CDK Python)
Hardware Modal A100-80GB
Duration ~3 minutes, 3 epochs, 75 steps
Final train loss 0.47
Cost ~$0.30

The dataset was built with deterministic generators faithful to real-world IaC patterns โ€” 100% of examples contain valid code blocks.


Usage

Transformers

from transformers import AutoModelForCausalLM, AutoTokenizer

model = AutoModelForCausalLM.from_pretrained("ccortezb/FinoCode-7B", device_map="auto")
tok = AutoTokenizer.from_pretrained("ccortezb/FinoCode-7B")

messages = [
    {"role": "system", "content": "You are FinoCode-7B, the IaC specialist of the FinOptix family. Output valid code."},
    {"role": "user", "content": "Generate a cost-optimal AWS CDK (TypeScript) DynamoDB table with on-demand billing and encryption."},
]
inputs = tok.apply_chat_template(messages, add_generation_prompt=True, return_tensors="pt").to(model.device)
out = model.generate(inputs, max_new_tokens=350, do_sample=False, repetition_penalty=1.1)
print(tok.decode(out[0][inputs.shape[1]:], skip_special_tokens=True))

Ollama (GGUF)

ollama run hf.co/ccortezb/FinoCode-7B-GGUF:Q4_K_M
# higher fidelity:
ollama run hf.co/ccortezb/FinoCode-7B-GGUF:Q6_K

Requires ~5GB RAM/VRAM (Q4_K_M) or ~7GB (Q6_K) โ€” runs comfortably on a laptop.


Example tasks

CDK Python audit โ†’ flags a m5.4xlarge with no tags, returns corrected Python with Graviton (m6g) + Tags.of(...).

CloudFormation audit โ†’ flags missing tags + x86 instance, returns corrected YAML with Graviton (m6g.large) and a Tags block.

Generation โ†’ produces cost-optimal constructs: DynamoDB PAY_PER_REQUEST, S3 lifecycle (IA โ†’ Glacier โ†’ expire), Lambda on ARM64 with 2-week log retention, SQS with a dead-letter queue.


The FinOptix family

Model Base Specialty
FinOptix-14B v2 Qwen 2.5 14B Full FinOps architect (cost, graph, dbt, incidents)
FinoCode-7B (this) Qwen 2.5 Coder 7B IaC audit + generation

Use case: IDE copilot for IaC, PR review bot, CI pipeline IaC optimizer.


Limitations

  • Trained on synthetic data modeled after real patterns โ€” no customer data.
  • Generates and audits IaC; does not deploy or call live AWS APIs.
  • Cost figures are illustrative unless real metrics are provided.
  • v0.1 โ€” Terraform + CDK (TS/Py) + CloudFormation. Pulumi / Terraform CDK / multi-cloud are future work.

License

Apache-2.0. Built by Carlos Cortez โ€” AWS Community Hero. LinkedIn ยท X ยท GitHub

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