# Claude Opus 5 vs Qwen3 6 Plus

As of Oct 15, 2026, Claude Opus 5 leads Qwen3 6 Plus in 6 of 6 shared categories: General LLM, Reasoning, Science, Coding › Web dev, Long context, and Factuality.

Claude Opus 5: $10 per 1M blended tokens.

Qwen3 6 Plus: $0.73125 per 1M blended tokens.

Claude Opus 5: closed weights.

Qwen3 6 Plus: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, Claude Opus 5 leads Qwen3 6 Plus in General LLM at #11 against #81.
- Which to pick, Reasoning: As of Oct 15, 2026, Claude Opus 5 leads Qwen3 6 Plus in Reasoning at #9 against #75.
- Which to pick, Science: As of Oct 15, 2026, Claude Opus 5 leads Qwen3 6 Plus in Science at #12 against #43.
- Which to pick, Coding › Web dev: As of Oct 15, 2026, Claude Opus 5 leads Qwen3 6 Plus in Coding › Web dev at #6 against #61.
- Which to pick, Long context: As of Oct 15, 2026, Claude Opus 5 leads Qwen3 6 Plus in Long context at #9 against #73.
- Which to pick, Factuality: As of Oct 15, 2026, Claude Opus 5 leads Qwen3 6 Plus in Factuality at #4 against #87.

As of Oct 15, 2026, Claude Opus 5 is near state of the art, rank #4 in Factuality (since Oct 15, 2026; sources LMArena Text factuality; methodology v1.0).

As of Oct 15, 2026, Qwen3 6 Plus is ranked #43 in Science (since Oct 15, 2026; sources GPQA Diamond; methodology v1.0).