Model comparison
Cogito v2.1 671B vs Claude 4 Sonnet
Capability radar, value bars, and side-by-side posture.
Cogito v2.1 671B
Not scored
value score
Claude 4 Sonnet
91
value score
Cogito v2.1 671B ctx
—
Claude 4 Sonnet ctx
200K
Capability radar
Value · context · multimodal · openness · speed posture
Value head-to-head
- Claude 4 Sonnet91
Attribute tape
| Field | Cogito v2.1 671B | Claude 4 Sonnet |
|---|---|---|
| Developer | Deep Cogito | Anthropic |
| Context | — | 200K |
| Modalities | Text, Code, Image | |
| Openness | — | Proprietary Model |
| Speed | — | Fast |
| Price | — | $3/1M in · $15/1M out |
| Value score | — | 91 |
| Summary | Cogito v2.1 671B is Deep Cogito's flagship open-weight 671B-parameter Mixture-of-Experts language model supporting both direct-response and optional self-reflection reasoning modes. It targets coding, STEM, instruction following, tool calling, and general reasoning with a 128K context window under a commercial-use open license. | Balanced Claude model for coding and agents. |