Claude Opus 4.5 vs Kimi K2.6
How do these models stack up? Below is an expert side-by-side comparison of specifications, context window capacity, live pricing per million tokens, and standardized benchmark scores for Claude Opus 4.5 and Kimi K2.6.
Claude Opus 4.5
Claude Opus 4.5 is Anthropic’s frontier reasoning model optimized for complex software engineering, agentic workflows, and long-horizon computer use. It offers strong multimodal capabilities, competitive performance across real-world coding and...
Kimi K2.6
Kimi K2.6 is Moonshot AI's next-generation multimodal model, designed for long-horizon coding, coding-driven UI/UX generation, and multi-agent orchestration. It handles complex end-to-end coding tasks across Python, Rust, and Go, and...
Technical Specifications
| Specification | Claude Opus 4.5 | Kimi K2.6 |
|---|---|---|
| Provider | Anthropic | Moonshot AI |
| Context Window | 200,000 tokens | 262,144 tokens |
| Agent Suitability | 93/100 | N/A |
| Time to First Token (TTFT) | 550 ms | N/A |
| Deployment Model | managed api | managed api |
| Production Stability | stable | stable |
| API Available | Yes | Yes |
| Released Date | 2025-11-24 | 2026-04-20 |
API Pricing Comparison
Input Price per Million Tokens
Claude Opus 4.5
$5.00
Kimi K2.6
$0.66
Output Price per Million Tokens
Claude Opus 4.5
$25.00
Kimi K2.6
$3.41
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Benchmark Performance Metrics
Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.
Claude Opus 4.5 Quirks & Gotchas
- ▸Deep analytical reasoning — best for structured problem-solving
- ▸200K context is limiting compared to 1M of Opus 4.6+ — upgrade for long-document tasks
Kimi K2.6 Quirks & Gotchas
No developer gotchas reported.