# Claude Opus 4 vs Gemini 3.8 Flash

As of Oct 15, 2026, Claude Opus 4 leads Gemini 3.8 Flash in 0 of 6 shared categories.

Claude Opus 4: price per 1M tokens is unset in the catalog.

Gemini 3.8 Flash: $1.5 per 1M blended tokens.

Claude Opus 4: closed weights.

Gemini 3.8 Flash: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, Gemini 3.8 Flash leads Claude Opus 4 in General LLM at #7 against #131.
- Which to pick, Reasoning: As of Oct 15, 2026, Gemini 3.8 Flash leads Claude Opus 4 in Reasoning at #6 against #125.
- Which to pick, Math: As of Oct 15, 2026, Gemini 3.8 Flash leads Claude Opus 4 in Math at #5 against #29.
- Which to pick, Science: As of Oct 15, 2026, Gemini 3.8 Flash leads Claude Opus 4 in Science at #4 against #91.
- Which to pick, Long context: As of Oct 15, 2026, Gemini 3.8 Flash leads Claude Opus 4 in Long context at #5 against #86.
- Which to pick, Abstraction (ARC): As of Oct 15, 2026, Gemini 3.8 Flash leads Claude Opus 4 in Abstraction (ARC) at #1 against #69.

As of Oct 15, 2026, Claude Opus 4 is a former state-of-the-art holder in Reasoning (since Jun 3, 2025; sources LMArena Text (style-controlled, hard prompts); methodology v1.0).

As of Oct 15, 2026, Gemini 3.8 Flash is state of the art on best per dollar in General LLM (since Oct 14, 2026; sources LMArena Text (style-controlled, overall); methodology v1.0).