When was Muse Spark released?

Muse Spark was released by Meta on Apr 8 2026.

When was GPT-5.2 released?

GPT-5.2 was released by OpenAI on Dec 11 2025.

Which is better on GPQA Diamond, Muse Spark or GPT-5.2?

GPT-5.2 scores higher on GPQA Diamond — Muse Spark 89.5% vs GPT-5.2 92.4%.

Which is better at coding, Muse Spark or GPT-5.2?

On SWE-Bench Verified (real-world software-engineering tasks), GPT-5.2 leads — Muse Spark scores 77.4% and GPT-5.2 scores 80%.

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Muse Spark

Apr 8 2026

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Muse Spark vs GPT-5.2

1 vs 2 benchmarks won

	Meta Muse Spark	OpenAI GPT-5.2
Overview
Company	Meta	OpenAI
Release date	Apr 8 2026	Dec 11 2025
Model type	—	—
Open source	No	No
Specifications
Parameters	—	—
Context window	—	—
Benchmarks
Science reasoning GPQA Diamond	89.5%	92.4%
Software engineering SWE-Bench Verified	77.4%	80%
Multimodal understanding MMMU	80.4%	—
Timeline
Release gap	GPT-5.2 shipped 118 days before Muse Spark

Which is better: Muse Spark or GPT-5.2?

GPT-5.2 leads Muse Spark on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). GPT-5.2 shipped 118 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 GPQA Diamond, GPT-5.2 scores 92.4%, 2.9 points above Muse Spark at 89.5%. On SWE-Bench Verified, GPT-5.2 scores 80%, 2.6 points above Muse Spark at 77.4%.

Frequently asked questions

When was Muse Spark released?: Muse Spark was released by Meta on Apr 8 2026.
When was GPT-5.2 released?: GPT-5.2 was released by OpenAI on Dec 11 2025.
Which is better on GPQA Diamond, Muse Spark or GPT-5.2?: GPT-5.2 scores higher on GPQA Diamond — Muse Spark 89.5% vs GPT-5.2 92.4%.
Which is better at coding, Muse Spark or GPT-5.2?: On SWE-Bench Verified (real-world software-engineering tasks), GPT-5.2 leads — Muse Spark scores 77.4% and GPT-5.2 scores 80%.