DeepSeek-V2 vs GPT-5.1
DeepSeek vs OpenAI — benchmarks, pricing, and capabilities side by side.
- •GPT-5.1 has a larger context window (400K)
| DeepSeek-V2 | GPT-5.1 | |
|---|---|---|
| Intelligence index | — | 89 |
| Developer | DeepSeek | OpenAI |
| Type | LLM | LLM |
| Access | Open weights | API only |
| Context window | 128,000 tokens | 400,000 tokens |
| Input price | — | $1.25 / 1M |
| Output price | — | $10.00 / 1M |
| Speed | — | 115 tok/s |
| Released | May 6, 2024 | November 12, 2025 |
| Parameters | 236B total / 21B active (MoE) | — |
| Input modalities | Text | Text, Image |
| Output modalities | Text | Text |