Kimi K2.5 vs GPT-5.6 Luna
| Moonshot Kimi K2.5 | OpenAI GPT-5.6 Luna | |
|---|---|---|
| Vendor | Moonshot | OpenAI |
| Context window | 256,144 | 1,050,000 |
| Max output | 16,384 | 128,000 |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| File input | Yes | Yes |
| Input | text, video, file, image | text, image |
| Output | text | text |
| Released | 2026-01-27 | 2026-07-09 |