# Muse Spark 1.2 vs O3 Mini

As of Oct 15, 2026, Muse Spark 1.2 leads O3 Mini in 3 of 3 shared categories: General LLM, Reasoning, and Long context.

Muse Spark 1.2: $2.0000000000000004 per 1M blended tokens.

O3 Mini: $1.9250000000000003 per 1M blended tokens.

Muse Spark 1.2: closed weights.

O3 Mini: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, Muse Spark 1.2 leads O3 Mini in General LLM at #8 against #10.
- Which to pick, Reasoning: As of Oct 15, 2026, Muse Spark 1.2 leads O3 Mini in Reasoning at #11 against #172.
- Which to pick, Long context: As of Oct 15, 2026, Muse Spark 1.2 leads O3 Mini in Long context at #17 against #186.

As of Oct 15, 2026, Muse Spark 1.2 is a former state-of-the-art holder in General LLM (since Sep 11, 2026; 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).