Claude 3.5 Sonnet vs Kimi K2.5: Specs & Benchmark Comparison
| Characteristic | Claude 3.5 Sonnet | Kimi K2.5 |
|---|---|---|
| Company | Anthropic | Moonshot AI |
| Release Date | June 21, 2024 | January 26, 2026 |
| Parameters | — | 1.0T |
| Multimodal | Yes | Yes |
| Context (input) | 200K | — |
| Context (output) | 200K | — |
| Input Price / 1M | $3.00 | — |
| Output Price / 1M | $15.00 | — |
| Average Score | 0.8 | 0.9 |
| Benchmarks | ||
| GPQA | 0.6 | 0.9 |
| MMLU-Pro | 0.8 | 0.9 |
Visual Benchmark Comparison
Claude 3.5 Sonnet
Kimi K2.5
GPQA0.6 vs 0.9
0.6
0.9
MMLU-Pro0.8 vs 0.9
0.8
0.9
Verdict
Kimi K2.5 leads in 1 out of 2 comparison categories.
Overall Performance
Both models show comparable average scores: Claude 3.5 Sonnet — 0.8, Kimi K2.5 — 0.9.
Recency
Kimi K2.5 is newer: released 1/26/2026 vs 6/21/2024.
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Frequently Asked Questions
Which is better for coding — Claude 3.5 Sonnet 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 — Claude 3.5 Sonnet or Kimi K2.5?
API pricing data is available on the individual model pages.
Which has a larger context window — Claude 3.5 Sonnet or Kimi K2.5?
Context window data is available on the individual model pages.
The Claude 3.5 Sonnet 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 3.5 Sonnet or Kimi K2.5 page. See also the complete list of AI model comparisons.