Claude Sonnet 5.5 vs MiniMax M3.1-Flash-Preview

A direct, empirical evaluation of Claude Sonnet 5.5 (Anthropic) against MiniMax M3.1-Flash-Preview (MiniMax).

Claude Sonnet 5.5

Developed by Anthropic · Proprietary Frontier Dynamic Hybrid Reasoner parameters

Terminal-Bench 4.0 execution (70.6%), SWE-bench Verified coding (82.4%), GitHub Copilot multi-file edits, and low-latency autonomous agentic coding at $2/$10 pricing.

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 Sonnet 5.5 MiniMax M3.1-Flash-Preview
SWE-bench Verified 82.4% 73.8%
MMLU-Pro 88.4% 81.2%
MATH-500 95.2% 92.4%
Context Window 1,000,000 tokens 1,000,000 tokens
Input Pricing (per 1M) $2.00 $0.10
Output Pricing (per 1M) $10.00 $0.40