# GPT-4.5 Preview vs O3 Mini

As of Oct 15, 2026, GPT-4.5 Preview leads O3 Mini in 2 of 5 shared categories: Reasoning and Long context.

GPT-4.5 Preview: price per 1M tokens is unset in the catalog.

O3 Mini: $1.9250000000000003 per 1M blended tokens.

GPT-4.5 Preview: closed weights.

O3 Mini: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, O3 Mini leads GPT-4.5 Preview in General LLM at #10 against #79.
- Which to pick, Reasoning: As of Oct 15, 2026, GPT-4.5 Preview leads O3 Mini in Reasoning at #121 against #172.
- Which to pick, Science: As of Oct 15, 2026, O3 Mini leads GPT-4.5 Preview in Science at #76 against #92.
- Which to pick, Long context: As of Oct 15, 2026, GPT-4.5 Preview leads O3 Mini in Long context at #93 against #186.
- Which to pick, Abstraction (ARC): As of Oct 15, 2026, O3 Mini leads GPT-4.5 Preview in Abstraction (ARC) at #51 against #83.

As of Oct 15, 2026, GPT-4.5 Preview is a former state-of-the-art holder in General LLM (since Oct 17, 2025; sources LMArena Text (style-controlled, overall); 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).