DeepSeek R1
Open-weight chain-of-thought reasoning model — superseded by DeepSeek V4
Verdict
Made frontier reasoning accessible to everyone when it shipped, and still works — but DeepSeek V4 folded R1's reasoning specialism and V3's general capability into a single model with selectable thinking modes, at a fraction of the inference cost. Migrate to DeepSeek V4 Pro; there is no longer a reason to run R1 and V3 as separate models.
Other Text Generation & Reasoning
- GPT-5.6Production
OpenAI current flagship — Sol/Terra/Luna tiers, 1.05M context
- GPT-5Superseded
OpenAI's previous flagship — superseded by GPT-5.6
- GPT-5 miniProduction
OpenAI's cost-efficient GPT-5-tier model — most of the quality at a fraction of the cost
- GPT-4oProduction
OpenAI previous-gen multimodal model — text, vision, audio
- GPT-4o miniStable
OpenAI's previous-gen cost-efficient model — superseded by GPT-5 mini
- GPT-OSS 120BStable
OpenAI's first open-weight model — 120B params, fully downloadable