Claude Opus 4.5 vs Kimi K2.5: Specs & Benchmark Comparison
| Characteristic | Claude Opus 4.5 | Kimi K2.5 |
|---|---|---|
| Company | Anthropic | Moonshot AI |
| Release Date | November 23, 2025 | January 26, 2026 |
| Parameters | — | 1.0T |
| Multimodal | Yes | Yes |
| Context (input) | 200K | — |
| Context (output) | 64K | — |
| Input Price / 1M | $5.00 | — |
| Output Price / 1M | $25.00 | — |
| Average Score | 0.9 | 0.9 |
| Benchmarks | ||
| GPQA | 0.9 | 0.9 |
Visual Benchmark Comparison
Claude Opus 4.5
Kimi K2.5
GPQA0.9 vs 0.9
0.9
0.9
Verdict
Kimi K2.5 leads in 1 out of 2 comparison categories.
Overall Performance
Both models show comparable average scores: Claude Opus 4.5 — 0.9, Kimi K2.5 — 0.9.
Recency
Kimi K2.5 is newer: released 1/26/2026 vs 11/23/2025.
More About These Models
Related Comparisons
The Claude Opus 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 Claude Opus 4.5 or Kimi K2.5 page. See also the complete list of AI model comparisons.