Ring-2.5-1T

Ring-2.5-1T ranks first on HMMT Nov 2025.

Ant Group Released 10 Feb 2026 Family Ring 2.5 The lab's model card

Benchmarks with a score

Ranked first, out of five or more models

In the top three

Ant Group Feb 2026

Open weights Flagship

No Epoch Capabilities Index score yet

Where it ranks

Its best score on each benchmark, and where that ranks among every model with a score there. We rank each model once, at its best setting.

Benchmark	Score	Rank	Source
HMMT Nov 2025	98.3%	#1 of 23	Model card
IMO-AnswerBench	90%	#2 of 37	Model card
AIME 2026	95%	#13 of 34	Model card
CMO 2025	105.0	#2 of 3	Model card
ARC-AGI-2	19.3%	#20 of 22	Model card

Benchmark	Score		Rank	Source
LiveCodeBench v6	89.4%		#8 of 76	Model card
SWE-bench Verified	72.4%		#60 of 150	Model card

Benchmark	Score		Rank	Source
tau2-bench	78.4%		#39 of 69	Model card
Meta Agents Research Environments (ARE) / Gaia2	75%		#2 of 3	Model card

The benchmarks the lab chose to headline, with the scores it gave.