Kimi K3 vs Grok 4.6
Grok 4.6 is 1.8× cheaper than Kimi K3 on a blended basis. Kimi K3 has the larger context window at 1.0M tokens.
Side by side
Green marks the better value in each row where a comparison is meaningful.
| Attribute | Kimi K3 | Grok 4.6 |
|---|---|---|
| Provider | Moonshot AI | xAI |
| Input / 1M tokens | $2.65 | $2.00 |
| Output / 1M tokens | $13.28 | $6.00 |
| Blended / 1M tokens | $5.31 | $3.00 |
| Cached input / 1M | $0.303 | $0.500 |
| Context window | 1.0M | 500K |
| Max output | 944K | 450K |
| Input modalities | text, image, video | text, image, file |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Structured output | Yes | Yes |
| Prompt caching | Yes | Yes |
| Open weights | Yes | No |
| Knowledge cutoff | - | - |
| Released | July 16, 2026 | August 12, 2026 |
Frequently asked
Is Kimi K3 or Grok 4.6 cheaper?
Grok 4.6 is 1.8× cheaper than Kimi K3 on a blended basis.
What is the price difference between Kimi K3 and Grok 4.6?
Kimi K3 costs $2.65 per million input tokens and $13.28 per million output tokens. Grok 4.6 costs $2.00 and $6.00 respectively.
Which has the larger context window, Kimi K3 or Grok 4.6?
Kimi K3, at 1.0M tokens versus 500K.