Claude Opus 5.5 vs Claude Opus 5.5 (Canary Checkpoint)
A direct, empirical evaluation of Claude Opus 5.5 (Anthropic) against Claude Opus 5.5 (Canary Checkpoint) (Anthropic).
Claude Opus 5.5
Developed by Anthropic · Proprietary Frontier Reasoner parameters
Autonomous enterprise codebase migrations, GitHub Copilot multi-file edits, SWE-bench Pro issue resolution (89.9%), and CodeRabbit automated reviews.
Claude Opus 5.5 (Canary Checkpoint)
Developed by Anthropic · Frontier Mixture-of-Experts Architecture parameters
Autonomous repository issue resolution (81.4% SWE-bench Verified), native 3D glTF/OBJ mesh synthesis, and sub-300ms time-to-first-token.
| Metric | Claude Opus 5.5 | Claude Opus 5.5 (Canary Checkpoint) |
|---|---|---|
| SWE-bench Verified | 89.9% | 81.4% |
| MMLU-Pro | 92.4% | 94.2% |
| MATH-500 | 97.2% | 97.9% |
| Context Window | 500,000 tokens | 1,000,000 tokens |
| Input Pricing (per 1M) | $4.00 | $5.00 |
| Output Pricing (per 1M) | $20.00 | $25.00 |