# Claude Opus 5.5 vs Minimax M3

As of Oct 15, 2026, Claude Opus 5.5 leads Minimax M3 in 5 of 6 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.

Claude Opus 5.5: $8.000000000000002 per 1M blended tokens.

Minimax M3: $0.5249999999999999 per 1M blended tokens.

Claude Opus 5.5: closed weights.

Minimax M3: open weights.

- Which to pick, General LLM: As of Oct 15, 2026, Claude Opus 5.5 leads Minimax M3 in General LLM at #2 against #87.
- Which to pick, Reasoning: As of Oct 15, 2026, Claude Opus 5.5 leads Minimax M3 in Reasoning at #1 against #80.
- Which to pick, Science: As of Oct 15, 2026, Minimax M3 leads Claude Opus 5.5 in Science at #28 against #31.
- Which to pick, Coding › Web dev: As of Oct 15, 2026, Claude Opus 5.5 leads Minimax M3 in Coding › Web dev at #1 against #54.
- Which to pick, Long context: As of Oct 15, 2026, Claude Opus 5.5 leads Minimax M3 in Long context at #1 against #76.
- Which to pick, Factuality: As of Oct 15, 2026, Claude Opus 5.5 leads Minimax M3 in Factuality at #1 against #94.

As of Oct 15, 2026, Claude Opus 5.5 is tied for state of the art in Reasoning (since Oct 2, 2026; sources LMArena Text (style-controlled, hard prompts); methodology v1.0).

As of Oct 15, 2026, Minimax M3 is a former state-of-the-art holder in Coding › Web dev (since Jun 5, 2026; sources LMArena WebDev; methodology v1.0).