Grok Build 0.1 vs Kimi K2.6
Grok Build 0.1 vs Kimi K2.6: which AI model is cheaper, has the larger context window and more capabilities? Side-by-side comparison updated daily.
Quick verdict
- Both models cost about the same.
- Kimi K2.6 has the larger context window (256K), useful for long documents and big codebases.
- Grok Build 0.1 is the more recent release (May 20, 2026).
- Only Kimi K2.6 has openly published weights you can run yourself.
| Grok Build 0.1 | Kimi K2.6 | |
|---|---|---|
| Company | xAI | Moonshot AI |
| Released | May 20, 2026 ● | Apr 20, 2026 |
| Overall index | — | 151.0 |
| SWE-bench Verified | — | 76.7% |
| GPQA Diamond | — | 90.8% |
| AIME math | — | 96.1% |
| FrontierMath | — | 57.2% |
| SimpleQA Verified | — | 34.9% |
| Input (per 1M tokens) | $1 | $0.65 ● |
| Output (per 1M tokens) | $2 ● | $3.41 |
| Cost for 1M input + 1M output tokens | $3.00 ● | $4.06 |
| Providers | 4 | 18 ● |
| Context | 256K | 256K ● |
| Max output | 225K | 236K ● |
| Inputs | Text, Image, Files ● | Text, Image |
| Outputs | Text | Text |
| Reasoning | ✓ | ✓ |
| Tool use | ✓ | ✓ |
| Structured output | ✓ | ✓ |
| Open weights | — | ✓ |