DeepSeek V3.2 Exp vs GPT-5.1
DeepSeek vs OpenAI — benchmarks, pricing, and capabilities side by side.
- •GPT-5.1 has the higher intelligence index (89 vs 72.2)
- •DeepSeek V3.2 Exp is cheaper ($0.27 vs $1.25 per 1M input)
- •GPT-5.1 is faster
- •GPT-5.1 has a larger context window (400K)
| DeepSeek V3.2 Exp | GPT-5.1 | |
|---|---|---|
| Intelligence index | 72.2 | 89 |
| Developer | DeepSeek | OpenAI |
| Type | LLM | LLM |
| Access | Open weights | API only |
| Context window | 163,840 tokens | 400,000 tokens |
| Input price | $0.27 / 1M | $1.25 / 1M |
| Output price | $0.41 / 1M | $10.00 / 1M |
| Speed | 100 tok/s | 115 tok/s |
| Released | September 29, 2025 | November 12, 2025 |
| Parameters | — | — |
| Input modalities | Text | Text, Image |
| Output modalities | Text | Text |
Shared benchmarks
DeepSeek V3.2 Exp
GPT-5.1
AIME 2025
89.3
94
GPQA Diamond
79.9
88.1
Humanity’s Last Exam
19.8
26.5
LiveCodeBench
74.1
86.8
MMLU-Pro
85
87