DeepSeek V4 Pro
1.6T MoE, 1M context, MIT-licensed — DeepSeek's new flagship
Verdict
Released April 24, 2026, unifying what used to be separate R1 (reasoning) and V3 (general) models into one, with three selectable reasoning modes (Non-Think, Think High, Think Max). 1.6T total / 49B active parameters, a genuinely usable 1M-token context at roughly 27% of the FLOPs and 10% of the KV-cache footprint of the previous generation, MIT-licensed. At $0.435/$0.87 per million tokens it is dramatically cheaper than any closed frontier model at a comparable level — still the best self-hostable option for reasoning-heavy work.
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OpenAI's previous flagship — superseded by GPT-5.6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OpenAI's previous-gen cost-efficient model — superseded by GPT-5 mini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