GPT-5 Pro vs Kimi K2.6
OpenAI vs Moonshot AI — benchmarks, pricing, and capabilities side by side.
- •GPT-5 Pro has the higher intelligence index (88.4 vs 74.9)
- •Kimi K2.6 is cheaper ($0.73 vs $15.00 per 1M input)
- •GPT-5 Pro has a larger context window (400K)
| GPT-5 Pro | Kimi K2.6 | |
|---|---|---|
| Intelligence index | 88.4 | 74.9 |
| Developer | OpenAI | Moonshot AI |
| Type | LLM | LLM |
| Access | API only | Open weights |
| Context window | 400,000 tokens | 262,144 tokens |
| Input price | $15.00 / 1M | $0.73 / 1M |
| Output price | $120.00 / 1M | $3.49 / 1M |
| Speed | — | 57 tok/s |
| Released | October 6, 2025 | April 20, 2026 |
| Parameters | — | 1T (32B active) |
| Input modalities | Text, Image | Text, Image |
| Output modalities | Text | Text |
Shared benchmarks
GPT-5 Pro
Kimi K2.6
GPQA Diamond
88.4
91.1
Humanity’s Last Exam
42
35.9