GPT-5.1 vs KAT-Coder-Pro V1
OpenAI vs Kuaishou — benchmarks, pricing, and capabilities side by side.
- •GPT-5.1 has the higher intelligence index (89 vs 81.8)
- •KAT-Coder-Pro V1 is cheaper ($0.30 vs $1.25 per 1M input)
- •GPT-5.1 is faster
| GPT-5.1 | KAT-Coder-Pro V1 | |
|---|---|---|
| Intelligence index | 89 | 81.8 |
| Developer | OpenAI | Kuaishou |
| Type | LLM | LLM |
| Access | API only | — |
| Context window | 400,000 tokens | — |
| Input price | $1.25 / 1M | $0.30 / 1M |
| Output price | $10.00 / 1M | $1.20 / 1M |
| Speed | 115 tok/s | 108 tok/s |
| Released | November 12, 2025 | November 11, 2025 |
| Parameters | — | — |
| Input modalities | Text, Image | — |
| Output modalities | Text | — |
Shared benchmarks
GPT-5.1
KAT-Coder-Pro V1
AIME 2025
94
94.7
GPQA Diamond
88.1
76.4
Humanity’s Last Exam
26.5
33.4
LiveCodeBench
86.8
74.7
MMLU-Pro
87
81.3