AI Model Release Tracker - Timeline of Major AI Models from 2022-2026

Muse Spark vs GPT-5 Pro

Meta
Muse Spark
OpenAI
GPT-5 Pro
Overview
CompanyMetaOpenAI
Release dateApr 8 2026Aug 7 2025
AccessProprietaryProprietary
Benchmarks
Agentic coding
SWE-Bench Pro
55%
Coding
SWE-Bench Verified
77.4%
Agentic coding
DeepSWE 1.1
10%
Agentic terminal coding
Terminal-Bench 2.1
67.3%
Multi-step tool use
MCP Atlas
82.2%
Professional tool use
JobBench
17%
Personal tool use
Toolathlon-Verified
49.4%
Multidisciplinary reasoning
Humanity's Last Exam · with tools
50.4%
Abstract reasoning
ARC-AGI-2
42.5%
Science
GPQA Diamond
89.5%
Agentic computer use
OSWorld-Verified
53.3%
Chart reasoning
CharXiv Reasoning
88.9%
Visual reasoning
BabyVision
39.9%
Multimodal
MMMU
80.4%
Community preference
Arena Elo (Text)
1488
Timeline
Release gapGPT-5 Pro shipped 244 days before Muse Spark

Which is better: Muse Spark or GPT-5 Pro?

Muse Spark and GPT-5 Pro don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. GPT-5 Pro shipped 244 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.

Direct benchmark comparisons are unavailable — Muse Spark and GPT-5 Pro don't publish scores on any of the same benchmarks.

Frequently asked questions

Muse Spark was released by Meta on Apr 8 2026.

GPT-5 Pro was released by OpenAI on Aug 7 2025.

Other comparisons