Cogito v2.1 671Bon Krater.ai
Cogito v2.1 671B MoE represents one of the strongest open models globally, matching performance of frontier closed and open models. This model is trained using self play with reinforcement learning
Released November 13, 2025
Specifications
Cogito v2.1 671B at a glance
Context
128K tokens
Input
Text
Output
Text
Input price
$1.25 / 1M
Output price
$1.25 / 1M
Capabilities
What it is good at
Catalog capabilities
- Generates text responses
- Supports structured outputs
Good for
Compare
Compare Cogito v2.1 671B
Cogito v2.1 671B vs Sonar Deep Research
Sonar Deep Research is a research-focused model designed for multi-step retrieval, synthesis, and reasoning across complex topics.
Open comparisonCogito v2.1 671B vs o3 Deep Research
o3-deep-research is OpenAI's advanced model for deep research, designed to tackle complex, multi-step research tasks.
Open comparisonCogito v2.1 671B vs o4 Mini Deep Research
o4-mini-deep-research is OpenAI's faster, more affordable deep research model—ideal for tackling complex, multi-step research tasks.
Open comparisonFAQ
Questions about Cogito v2.1 671B
Clear answers based on the model catalog and Krater access.
Use Cogito v2.1 671B in your API
Connect with Krater's unified API.
Ready to use Cogito v2.1 671B?
Access leading models in one focused workspace.