dan-omni-3b-q3s

Aggressively quantized variant of dan-omni-3b using Q3_K_S quantization. Faster inference than the full Q4_K_M model with slightly reduced quality.

Model Description

Property Value
Base Model Qwen2.5-3B
Fine-tuning LoRA on mobile-optimized instruction data
Context Length 4096 tokens
Parameters 3B
File Size 1.5 GB
Quantization Q3_K_S (aggressive)

System Prompt

You are dan, a helpful AI assistant for mobile devices. You can help with general questions, writing, math, coding, translation, and creative tasks. Keep answers concise and natural. Don't explain your architecture unless asked.

Benchmarks

Tested on Intel i9-9880H @ 2.30GHz, 16GB RAM, Ollama runtime.

Category Avg tok/s Prompt tok/s Tokens Time
Reasoning 12.2 82.7 160 13.1s
Coding 13.3 82.7 190 14.3s
Creative Writing 13.0 82.7 59 4.5s
Instruction Following 13.1 82.7 47 3.6s
Math 12.7 82.7 93 7.3s
General Knowledge 12.7 82.7 28 2.2s
Average 12.8 82.7 96 7.5s

Comparison vs Competitors

Speed Comparison Efficiency Frontier

Model Size Speed Quality RAM
dan-omni-3b-q3s 1.5 GB 12.8 tok/s Med-High ~2 GB
dan-omni-3b 2.0 GB 11.3 tok/s High ~2.5 GB
dan-omni-3b-mobile 1.2 GB 9.8 tok/s Med-High ~1.5 GB
Qwen2.5-3B (base) ~1.9 GB ~12 tok/s High ~2.5 GB
Command-R7B ~4.0 GB ~8 tok/s High ~5 GB

Why Q3_K_S? 25% smaller than Q4_K_M, 13% faster inference. Quality drop is minimal for most tasks โ€” ideal when you need to fit in tight memory but don't want to drop to a smaller model.

Quantization Comparison

Variant Size Speed Quality When to Use
dan-omni-3b (Q4_K_M) 2.0 GB 11.3 tok/s High Default choice
dan-omni-3b-q3s (Q3_K_S) 1.5 GB 12.8 tok/s Med-High Tight memory
dan-omni-3b-mobile 1.2 GB 9.8 tok/s Med-High Mobile with 2K ctx

Dan Omni Model Family

Model Size Speed Use Case
dan-omni-3b 3.5 GB 11.3 tok/s Full multimodal (text + vision)
dan-omni-3b-mobile 1.2 GB 9.8 tok/s Compressed for mobile, 2K context
dan-omni-3b-q3s 1.5 GB 12.8 tok/s Aggressive quantization
dan-omni-smolm2 259 MB 62.2 tok/s Ultralight, fastest
dan-omni-smolm2-v2 259 MB 62.1 tok/s Improved quality variant

Usage

ollama pull sodan/dan-omni-3b-q3s
ollama run sodan/dan-omni-3b-q3s
./llama-cli -m dan-omni-3b-q3s.gguf -p "Hello" --ctx-size 4096

Intended Use

  • Devices with 2-3 GB RAM available
  • When you want 3B quality but can't fit 2.0 GB
  • Faster inference than Q4 without dropping model size
  • Good balance of speed and quality

Limitations

  • Q3_K_S quantization introduces slightly more noise than Q4_K_M
  • May show minor quality degradation on complex reasoning
  • Not multimodal (text only)

License

Apache 2.0

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