GPT-5.1 vs MiniMax M2.5
OpenAI vs MiniMax — benchmarks, pricing, and capabilities side by side.
- •GPT-5.1 has the higher intelligence index (89 vs 84.8)
- •MiniMax M2.5 is cheaper ($0.15 vs $1.25 per 1M input)
- •GPT-5.1 is faster
- •GPT-5.1 has a larger context window (400K)
| GPT-5.1 | MiniMax M2.5 | |
|---|---|---|
| Intelligence index | 89 | 84.8 |
| Developer | OpenAI | MiniMax |
| Type | LLM | LLM |
| Access | API only | Open weights |
| Context window | 400,000 tokens | 204,800 tokens |
| Input price | $1.25 / 1M | $0.15 / 1M |
| Output price | $10.00 / 1M | $1.15 / 1M |
| Speed | 115 tok/s | 87 tok/s |
| Released | November 12, 2025 | February 12, 2026 |
| Parameters | — | — |
| Input modalities | Text, Image | Text |
| Output modalities | Text | Text |
Shared benchmarks
GPT-5.1
MiniMax M2.5
GPQA Diamond
88.1
84.8
Humanity’s Last Exam
26.5
19.1