# Claude Opus 5.5 vs Qwen3 5 397B A17b

As of Oct 14, 2026, Claude Opus 5.5 leads Qwen3 5 397B A17b in 6 of 6 shared categories: General LLM, Reasoning, Science, Coding › Web dev, Long context, and Factuality.

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

Qwen3 5 397B A17b: $1.2750000000000001 per 1M blended tokens.

Claude Opus 5.5: closed weights.

Qwen3 5 397B A17b: open weights.

- Which to pick, General LLM: As of Oct 14, 2026, Claude Opus 5.5 leads Qwen3 5 397B A17b in General LLM at #2 against #66.
- Which to pick, Reasoning: As of Oct 14, 2026, Claude Opus 5.5 leads Qwen3 5 397B A17b in Reasoning at #1 against #64.
- Which to pick, Science: As of Oct 14, 2026, Claude Opus 5.5 leads Qwen3 5 397B A17b in Science at #31 against #53.
- Which to pick, Coding › Web dev: As of Oct 14, 2026, Claude Opus 5.5 leads Qwen3 5 397B A17b in Coding › Web dev at #1 against #72.
- Which to pick, Long context: As of Oct 14, 2026, Claude Opus 5.5 leads Qwen3 5 397B A17b in Long context at #1 against #60.
- Which to pick, Factuality: As of Oct 14, 2026, Claude Opus 5.5 leads Qwen3 5 397B A17b in Factuality at #1 against #59.

As of Oct 14, 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 14, 2026, Qwen3 5 397B A17b is ranked #53 in Science (since Oct 14, 2026; sources GPQA Diamond; methodology v1.0).