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

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Claude Opus 4 vs Muse Spark

0 vs 2 benchmarks won

Anthropic
Claude Opus 4
Meta
Muse Spark
Overview
CompanyAnthropicMeta
Release dateMay 22 2025Apr 8 2026
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Coding
SWE-Bench Verified
72.5%
77.4%Best
Science
GPQA Diamond
79.6%
89.5%Best
Multimodal
MMMU
80.4%
Timeline
Release gapClaude Opus 4 shipped 321 days before Muse Spark

Which is better: Claude Opus 4 or Muse Spark?

Muse Spark leads Claude Opus 4 on 2 of the 2 benchmarks they both report (SWE-Bench Verified, GPQA Diamond). Claude Opus 4 shipped 321 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 Claude Opus 4 at 72.5%. On GPQA Diamond, Muse Spark leads at 89.5% vs Claude Opus 4 at 79.6%.

Frequently asked questions

When was Claude Opus 4 released?
Claude Opus 4 was released by Anthropic on May 22 2025.
When was Muse Spark released?
Muse Spark was released by Meta on Apr 8 2026.
Which is better at coding, Claude Opus 4 or Muse Spark?
Muse Spark leads on SWE-Bench Verified — Claude Opus 4 72.5% vs Muse Spark 77.4%.
Which scores higher on GPQA Diamond, Claude Opus 4 or Muse Spark?
Muse Spark leads on GPQA Diamond — Claude Opus 4 79.6% vs Muse Spark 89.5%.

Other comparisons