# Claude Haiku 4.5 vs O3 Mini

As of Oct 14, 2026, Claude Haiku 4.5 leads O3 Mini in 2 of 5 shared categories: Reasoning and Long context.

Claude Haiku 4.5: $2.0000000000000004 per 1M blended tokens.

O3 Mini: $1.9250000000000003 per 1M blended tokens.

Claude Haiku 4.5: closed weights.

O3 Mini: closed weights.

- Which to pick, General LLM: As of Oct 14, 2026, O3 Mini leads Claude Haiku 4.5 in General LLM at #7 against #104.
- Which to pick, Reasoning: As of Oct 14, 2026, Claude Haiku 4.5 leads O3 Mini in Reasoning at #91 against #133.
- Which to pick, Science: As of Oct 14, 2026, O3 Mini leads Claude Haiku 4.5 in Science at #76 against #109.
- Which to pick, Long context: As of Oct 14, 2026, Claude Haiku 4.5 leads O3 Mini in Long context at #84 against #145.
- Which to pick, Abstraction (ARC): As of Oct 14, 2026, O3 Mini leads Claude Haiku 4.5 in Abstraction (ARC) at #51 against #78.

As of Oct 14, 2026, Claude Haiku 4.5 is ranked #78 in Abstraction (ARC) (since Oct 14, 2026; sources ARC-AGI; methodology v1.0).

As of Oct 14, 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).