Muse Spark 1.2vso1-preview

Muse Spark 1.2
o1-preview
Specifications
Context window
1M
128k
Benchmarks
Agentic coding
DeepSWE 1.1
59.3%
Agentic terminal coding
Terminal-Bench 2.1
82.9%
Science
GPQA Diamond
73.3%
Overview
CompanyMetaOpenAI
Release dateAug 5 2026Sep 12 2024
AccessProprietaryProprietary

Which is better: Muse Spark 1.2 or o1-preview?

Muse Spark 1.2 and o1-preview don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. o1-preview shipped 692 days before Muse Spark 1.2, so benchmark comparisons should account for the intervening progress.

Context windows are 1M (Muse Spark 1.2) vs 128k (o1-preview).

Direct benchmark comparisons are unavailable — Muse Spark 1.2 and o1-preview don't publish scores on any of the same benchmarks.

Frequently asked questions

Muse Spark 1.2 was released by Meta on Aug 5 2026.

o1-preview was released by OpenAI on Sep 12 2024.

Muse Spark 1.2 has a 1M context window; o1-preview has 128k.

Other comparisons