Open-weight reasoner that matches GPT-5 on math/code at 1/20 cost.
DeepSeek R2 is the breakthrough open reasoning model. Self-host it and reasoning becomes free.
Best for
Recommended workflow
Step 1
Self-host or use API
Step 2
Wire to your agent layer
Step 3
Benchmark vs frontier
OpenAI
The default consumer AI; GPT-5.5 reasoning + agents + image.
Anthropic
Best long-context reasoning, writing, and Artifacts.
Native Workspace integration, 2M-token context, Veo + Imagen built in.
xAI
Real-time X data + uncensored research; fastest at breaking news.
Meta
Best open-weight family; self-host for privacy and price.
Mistral AI
European, multilingual, GDPR-friendly frontier model.