Claude Opus 4.6 vs Kimi K2 0905: Specs & Benchmark Comparison
| Characteristic | Claude Opus 4.6 | Kimi K2 0905 |
|---|---|---|
| Company | Anthropic | Moonshot AI |
| Release Date | February 4, 2026 | September 5, 2025 |
| Parameters | — | 1.0T |
| Multimodal | Yes | No |
| Context (input) | 1.0M | 262K |
| Context (output) | 128K | 262K |
| Input Price / 1M | $5.00 | $0.60 |
| Output Price / 1M | $25.00 | $2.50 |
| Average Score | 0.8 | 0.8 |
| Benchmarks | ||
| GPQA | 0.9 | 0.8 |
Visual Benchmark Comparison
Claude Opus 4.6
Kimi K2 0905
GPQA0.9 vs 0.8
0.9
0.8
Verdict
Claude Opus 4.6 leads in 2 out of 4 comparison categories.
Overall Performance
Both models show comparable average scores: Claude Opus 4.6 — 0.8, Kimi K2 0905 — 0.8.
API Cost
Kimi K2 0905 is 9.7x cheaper: input $0.60/1M vs $5.00/1M tokens.
Context Window
Claude Opus 4.6 supports a larger context: 1M vs 262K tokens.
Recency
Claude Opus 4.6 is newer: released 2/4/2026 vs 9/5/2025.
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Frequently Asked Questions
Which is better for coding — Claude Opus 4.6 or Kimi K2 0905?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — Claude Opus 4.6 or Kimi K2 0905?
Kimi K2 0905 is cheaper for input: $0.60 per 1M tokens vs $5.00.
Which has a larger context window — Claude Opus 4.6 or Kimi K2 0905?
Claude Opus 4.6 supports a larger context: 1,000,000 tokens vs 262,144.
The Claude Opus 4.6 and Kimi K2 0905 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 4.6 or Kimi K2 0905 page. See also the complete list of AI model comparisons.