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Open-weight chain-of-thought reasoning model — superseded by DeepSeek V4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-6 AstraProduction
OpenAI's most capable model — 1.05M context, 128K output
- GPT-6.1 SolProduction
The OpenAI default — near-Astra quality at a fifth of the price
- GPT-6 LunaProduction
OpenAI's efficient tier — $0.10/$0.50 with the full 1.05M context
- GPT-5.6Superseded
Previous OpenAI family — Sol/Terra/Luna tiers, superseded by GPT-6
- GPT-5Superseded
OpenAI's 2025 flagship — two families back now
- GPT-5 miniSuperseded
OpenAI's 2025 cost-efficient model — superseded by GPT-6 Luna