AI Co-Mathematician | Epoch AI

ECI

N/A

Google DeepMind

May 8, 2026

Closed weights

AI Co-Mathematician is a closed-weights model from Google DeepMind, released May 8, 2026.

AI Co-Mathematician vs select alternatives

Domain	Benchmark	AI Co-Mathematician Google DeepMind May 8, 2026 Closed weights	GPT-5.5 Pro OpenAI Apr. 23, 2026 Closed weights	Claude Opus 4.7 Anthropic Apr. 16, 2026 Closed weights	Muse Spark Meta AI Apr. 8, 2026 Closed weights
Mathematics	FrontierMath Tier 4 (v2)Best score 98%	76%	78%	32%	n/a

Model metadata

General
Organization	Google DeepMind
Release date	May 8, 2026
Model accessibility	Closed weights
Country	United States of America
Knowledge cutoff	Unknown
Provider notes	Unknown

Pricing
Input price	—
Output price	—

Training
Parameters	Unknown
Training compute	Unknown
Training hardware	Unknown
Training time	Unknown
Training dataset size	Unknown