Compare AI models

Specifications
Context windowHow much information the model can work with in one request, measured in tokens — pieces of words or other data. This includes your question, attachments, conversation and reply. Limits can vary by model variant and provider.
—200k
Benchmarks
SWE-Bench VerifiedCoding — Real coding tasks pulled from open-source projects — the AI has to find and fix actual bugs. A human-checked version of the original SWE-Bench. Higher is better.
77.4%49.3%
GPQA DiamondScience — Graduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better.
89.5%77.2%
Overview
CompanyMetaOpenAI
Release dateApr 8 2026Jan 31 2025
AccessClosedClosed
Model detailsView modelView model

Frequently asked questions

Muse Spark leads o3-mini-high on 2 of the 2 benchmarks they both report (SWE-Bench Verified, GPQA Diamond). o3-mini-high shipped 432 days before Muse Spark, so benchmark comparisons should account for the intervening progress.

Published specifications for these two models are limited — see each model page for the latest details.

On SWE-Bench Verified, Muse Spark leads at 77.4% vs o3-mini-high at 49.3%. On GPQA Diamond, Muse Spark leads at 89.5% vs o3-mini-high at 77.2%.