GPT-5.6 Sol vs Kimi K2.5: Specs & Benchmark Comparison
| Characteristic | GPT-5.6 Sol | Kimi K2.5 |
|---|---|---|
| Company | OpenAI | Moonshot AI |
| Release Date | July 9, 2026 | January 26, 2026 |
| Parameters | — | 1.0T |
| Multimodal | Yes | Yes |
| Context (input) | 1.1M | — |
| Context (output) | 128K | — |
| Input Price / 1M | $5.00 | — |
| Output Price / 1M | $30.00 | — |
| Average Score | 0.6 | 0.9 |
| Benchmarks | ||
| GPQA | 0.9 | 0.9 |
Visual Benchmark Comparison
GPT-5.6 Sol
Kimi K2.5
GPQA0.9 vs 0.9
0.9
0.9
Verdict
GPT-5.6 Sol leads in 1 out of 2 comparison categories.
Overall Performance
Both models show comparable average scores: GPT-5.6 Sol — 0.6, Kimi K2.5 — 0.9.
Recency
GPT-5.6 Sol is newer: released 7/9/2026 vs 1/26/2026.
More About These Models
Related Comparisons
Frequently Asked Questions
Which is better for coding — GPT-5.6 Sol 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 — GPT-5.6 Sol or Kimi K2.5?
API pricing data is available on the individual model pages.
Which has a larger context window — GPT-5.6 Sol or Kimi K2.5?
Context window data is available on the individual model pages.
The GPT-5.6 Sol 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 GPT-5.6 Sol or Kimi K2.5 page. See also the complete list of AI model comparisons.