# Claude Opus 5 vs Gemma 3 27B IT

As of Oct 15, 2026, Claude Opus 5 leads Gemma 3 27B IT in 3 of 3 shared categories: General LLM, Science, and Factuality.

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

Gemma 3 27B IT: $0.1725 per 1M blended tokens.

Claude Opus 5: closed weights.

Gemma 3 27B IT: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, Claude Opus 5 leads Gemma 3 27B IT in General LLM at #11 against #187.
- Which to pick, Science: As of Oct 15, 2026, Claude Opus 5 leads Gemma 3 27B IT in Science at #12 against #132.
- Which to pick, Factuality: As of Oct 15, 2026, Claude Opus 5 leads Gemma 3 27B IT in Factuality at #4 against #151.

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, Gemma 3 27B IT is ranked #132 in Science (since Oct 15, 2026; sources GPQA Diamond; methodology v1.0).