kimi-k2-0905-preview vs Grok 4.3
Grok 4.3 is cheaper on output tokens, while Grok 4.3 offers a larger context window. Choose kimi-k2-0905-preview or Grok 4.3 based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | kimi-k2-0905-preview | Grok 4.3 |
|---|---|---|
| Provider | 302.AI | SpaceXAI |
| Input / 1M tokens | $0.63 | $1.25 |
| Output / 1M tokens | $2.51 | $2.50 |
| Context window | 262K | 1M |
| Parameters | — | — |
| Open weights | Yes | — |
| Released | Sep 2025 | — |
| SWE-bench Verified score | 71.2 | — |
| LiveBench score | — | 67.4 |
| GPQA Diamond score | — | 88.8 |
| LMArena (Chatbot Arena) Elo score | — | 1397 |
| LMArena WebDev Elo score | — | 1358 |
| LMArena Vision Elo score | — | 1229 |
FAQ
Is kimi-k2-0905-preview or Grok 4.3 cheaper?
Grok 4.3 is cheaper on output tokens ($2.50 vs $2.51 per 1M).
Which has the larger context window, kimi-k2-0905-preview or Grok 4.3?
Grok 4.3 has the larger context window (1M tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.