Kimi K2.6 vs GLM 5.3 Flash
Kimi K2.6 vs GLM 5.3 Flash: which AI model is cheaper, has the larger context window and more capabilities? Side-by-side comparison updated daily.
Quick verdict
- GLM 5.3 Flash is 5.6× cheaper than Kimi K2.6 for the same mix of input and output tokens.
- GLM 5.3 Flash has the larger context window (1M), useful for long documents and big codebases.
- GLM 5.3 Flash is the more recent release (Aug 26, 2026).
- Choose GLM 5.3 Flash if cost matters most; choose Kimi K2.6 if you need its specific strengths above. For the best results, test both on your own prompts.
| Kimi K2.6 | GLM 5.3 Flash | |
|---|---|---|
| Company | Moonshot AI | Z.ai (Zhipu) |
| Released | Apr 20, 2026 | Aug 26, 2026 ● |
| Overall index | 151.0 | 151.9 ● |
| SWE-bench Verified | 76.7% | — |
| GPQA Diamond | 90.8% ● | 90.2% |
| AIME math | 96.1% ● | 93.9% |
| FrontierMath | 57.2% ● | 55.8% |
| SimpleQA Verified | 34.9% | — |
| Input (per 1M tokens) | $0.65 | $0.15 ● |
| Output (per 1M tokens) | $3.41 | $0.50 ● |
| Cost for 1M input + 1M output tokens | $4.06 | $0.65 ● |
| Providers | 18 | 33 ● |
| Context | 256K | 1M ● |
| Max output | 236K | 944K ● |
| Inputs | Text, Image | Text, Image, Video ● |
| Outputs | Text | Text |
| Reasoning | ✓ | ✓ |
| Tool use | ✓ | ✓ |
| Structured output | ✓ | ✓ |
| Open weights | ✓ | ✓ |