Grok 4.5 vs Kimi K2.5: Specs & Benchmark Comparison
| Characteristic | Grok 4.5 | Kimi K2.5 |
|---|---|---|
| Company | xAI | Moonshot AI |
| Release Date | July 16, 2026 | January 26, 2026 |
| Parameters | — | 1.0T |
| Multimodal | Yes | Yes |
| Context (input) | 500K | — |
| Input Price / 1M | $2.00 | — |
| Output Price / 1M | $6.00 | — |
| Average Score | 0.8 | 0.9 |
| Benchmarks | ||
| GPQA | 0.9 | 0.9 |
Visual Benchmark Comparison
Grok 4.5
Kimi K2.5
GPQA0.9 vs 0.9
0.9
0.9
Verdict
Grok 4.5 leads in 1 out of 2 comparison categories.
Overall Performance
Both models show comparable average scores: Grok 4.5 — 0.8, Kimi K2.5 — 0.9.
Recency
Grok 4.5 is newer: released 7/16/2026 vs 1/26/2026.
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Frequently Asked Questions
Which is better for coding — Grok 4.5 or Kimi K2.5?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — Grok 4.5 or Kimi K2.5?
API pricing data is available on the individual model pages.
Which has a larger context window — Grok 4.5 or Kimi K2.5?
Context window data is available on the individual model pages.
The Grok 4.5 and Kimi K2.5 comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Grok 4.5 or Kimi K2.5 page. See also the complete list of AI model comparisons.