Claude Opus 5.5 vs MiniMax M3.1-Flash-Preview
A direct, empirical evaluation of Claude Opus 5.5 (Anthropic) against MiniMax M3.1-Flash-Preview (MiniMax).
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.
MiniMax M3.1-Flash-Preview
Developed by MiniMax · Proprietary Sparse Coding MoE parameters
Low-latency interactive IDE code completions at 165 tokens/sec, SWE-bench Verified bug fixes (73.8%), terminal automation, and budget-optimized pull request reviews.
| Metric | Claude Opus 5.5 | MiniMax M3.1-Flash-Preview |
|---|---|---|
| SWE-bench Verified | 89.9% | 73.8% |
| MMLU-Pro | 92.4% | 81.2% |
| MATH-500 | 97.2% | 92.4% |
| Context Window | 500,000 tokens | 1,000,000 tokens |
| Input Pricing (per 1M) | $4.00 | $0.10 |
| Output Pricing (per 1M) | $20.00 | $0.40 |