# Claude Sonnet 4.6 vs O3 Mini

As of Oct 15, 2026, Claude Sonnet 4.6 leads O3 Mini in 4 of 5 shared categories: Reasoning, Science, Long context, and Abstraction (ARC).

Claude Sonnet 4.6: $6 per 1M blended tokens.

O3 Mini: $1.9250000000000003 per 1M blended tokens.

Claude Sonnet 4.6: closed weights.

O3 Mini: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, O3 Mini leads Claude Sonnet 4.6 in General LLM at #10 against #38.
- Which to pick, Reasoning: As of Oct 15, 2026, Claude Sonnet 4.6 leads O3 Mini in Reasoning at #20 against #172.
- Which to pick, Science: As of Oct 15, 2026, Claude Sonnet 4.6 leads O3 Mini in Science at #50 against #76.
- Which to pick, Long context: As of Oct 15, 2026, Claude Sonnet 4.6 leads O3 Mini in Long context at #21 against #186.
- Which to pick, Abstraction (ARC): As of Oct 15, 2026, Claude Sonnet 4.6 leads O3 Mini in Abstraction (ARC) at #23 against #51.

As of Oct 15, 2026, Claude Sonnet 4.6 is a former state-of-the-art holder in Long context (since Mar 19, 2026; sources LMArena Text (style-controlled, longer query); methodology v1.0).

As of Oct 15, 2026, O3 Mini is a former state-of-the-art holder in Reasoning (since Feb 9, 2025; sources LMArena Text (style-controlled, hard prompts); methodology v1.0).