About Cogito V2 Preview Deepseek 671B
Cogito v2 is a multilingual, instruction-tuned Mixture of Experts (MoE) large language model with 671 billion parameters. It supports both standard and reasoning-based generation modes. The model introduces hybrid reasoning via Iterated Distillation and Amplification (IDA)βan iterative self-improvement strategy designed to scale alignment with general intelligence. Cogito v2 has been optimized for STEM, programming, instruction following, and tool use. It supports 128k context length and offers strong performance in both multilingual and code-heavy environments. Users can control the reasoning behaviour with the `reasoning` `enabled` boolean. [Learn more in our docs](https://openrouter.ai/docs/use-cases/reasoning-tokens#enable-reasoning-with-default-config)
Model Specifications
Best For
- Complex reasoning, math problems, multi-step logic
- Conversations, content writing, general assistance
Consider Alternatives For
- Image understanding (needs vision capability)
- Simple Q&A (cheaper models available)
This model is completely free!
No token costs - use it without worrying about API bills.
Estimate Token UsageOther Model Lineup
Compare all models from Other to find the best fit
| Model | Input | Output | Context | Capabilities |
|---|---|---|---|---|
| Cogito V2 Preview Deepseek 671B Current | Free | Free | 131k | chat reasoning |
| Riverflow V2 Max Preview | Free | Free | 8k | chat vision image_gen |
| Riverflow V2 Standard Preview | Free | Free | 8k | chat vision image_gen |
| Riverflow V2 Fast Preview | Free | Free | 8k | chat vision image_gen |
| AFM 4.5B | Free | Free | 66k | chat |
| AFM 4.5B | Free | Free | 66k | chat |
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