GPT-4o vs Kimi K2.5
OpenAI vs Moonshot AI — benchmarks, pricing, and capabilities side by side.
- •Kimi K2.5 has the higher intelligence index (87.9 vs 56.4)
- •Kimi K2.5 is cheaper ($0.40 vs $2.50 per 1M input)
- •GPT-4o is faster
- •Kimi K2.5 has a larger context window (262K)
| GPT-4o | Kimi K2.5 | |
|---|---|---|
| Intelligence index | 56.4 | 87.9 |
| Developer | OpenAI | Moonshot AI |
| Type | Multimodal | Multimodal |
| Access | API only | Open weights |
| Context window | 128,000 tokens | 262,144 tokens |
| Input price | $2.50 / 1M | $0.40 / 1M |
| Output price | $10.00 / 1M | $1.90 / 1M |
| Speed | 132 tok/s | 35 tok/s |
| Released | May 13, 2024 | January 27, 2026 |
| Parameters | — | 1T (32B active) |
| Input modalities | Text, Image | Text, Image |
| Output modalities | Text | Text |
Shared benchmarks
GPT-4o
Kimi K2.5
GPQA Diamond
70.1
87.9
Humanity’s Last Exam
5.3
29.4