Model comparison
nanochat-d12 vs Claude 4 Sonnet
Capability radar, value bars, and side-by-side posture.
nanochat-d12
Not scored
value score
Claude 4 Sonnet
91
value score
nanochat-d12 ctx
—
Claude 4 Sonnet ctx
200K
Capability radar
Value · context · multimodal · openness · speed posture
Value head-to-head
- Claude 4 Sonnet91
Attribute tape
| Field | nanochat-d12 | Claude 4 Sonnet |
|---|---|---|
| Developer | Unknown | Anthropic |
| Context | — | 200K |
| Modalities | Text, Code, Image | |
| Openness | — | Proprietary Model |
| Speed | — | Fast |
| Price | — | $3/1M in · $15/1M out |
| Value score | — | 91 |
| Summary | A small, open-weight chat-oriented language model (~124M parameters) published under the nanochat project, built on a minimal end-to-end training stack covering pretraining on FineWeb-EDU through chat SFT. Designed for reproducibility and hackability on a single GPU node rather than frontier-scale performance. | Balanced Claude model for coding and agents. |