Claude Opus 4.6 vs Kimi K2-Thinking-0905: Specs & Benchmark Comparison
| Characteristic | Claude Opus 4.6 | Kimi K2-Thinking-0905 |
|---|---|---|
| Company | Anthropic | Moonshot AI |
| Release Date | February 4, 2026 | September 4, 2025 |
| Parameters | — | 1.0T |
| Multimodal | Yes | No |
| Context (input) | 1.0M | 262K |
| Context (output) | 128K | 66K |
| Input Price / 1M | $5.00 | $0.60 |
| Output Price / 1M | $25.00 | $2.40 |
| Average Score | 0.8 | 0.9 |
| Benchmarks | ||
| GPQA | 0.9 | 0.8 |
| AIME 2025 | 1.0 | 1.0 |
Visual Benchmark Comparison
Claude Opus 4.6
Kimi K2-Thinking-0905
GPQA0.9 vs 0.8
0.9
0.8
AIME 20251.0 vs 1.0
1.0
1.0
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-Thinking-0905 — 0.9.
API Cost
Kimi K2-Thinking-0905 is 10.0x 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 9/4/2025.
More About These Models
Related Comparisons
The Claude Opus 4.6 and Kimi K2-Thinking-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-Thinking-0905 page. See also the complete list of AI model comparisons.