Muse Glimmervso1-preview

Muse Glimmer
o1-preview
Specifications
Parameters
30B
Context window
128k
Benchmarks
Agentic coding
SWE-Bench Pro
51.2%
Coding
SWE-Bench Verified
76%
Agentic terminal coding
Terminal-Bench 2.1
51.7%
Multi-step tool use
MCP Atlas
75.5%
Multidisciplinary reasoning
Humanity's Last Exam · no tools
22%
Science
GPQA Diamond
83.5%Best
73.3%
Agentic computer use
OSWorld-Verified
65.9%
Knowledge work
GDPval-AA v2
953
Chart reasoning
CharXiv Reasoning
78.8%
Multimodal reasoning
MMMU-Pro
74%
Overview
CompanyMetaOpenAI
Release dateAug 10 2026Sep 12 2024
AccessOpen WeightProprietary

Which is better: Muse Glimmer or o1-preview?

Muse Glimmer leads o1-preview on 1 of the 1 benchmark they both report (GPQA Diamond). o1-preview shipped 697 days before Muse Glimmer, so benchmark comparisons should account for the intervening progress.

Muse Glimmer is open weight, while o1-preview is proprietary.

On GPQA Diamond, Muse Glimmer leads at 83.5% vs o1-preview at 73.3%.

Frequently asked questions

Muse Glimmer was released by Meta on Aug 10 2026.

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

Muse Glimmer leads on GPQA Diamond — Muse Glimmer 83.5% vs o1-preview 73.3%.

Muse Glimmer is an open weight model released by Meta. o1-preview is a proprietary model released by OpenAI.

Other comparisons