Allen Institute for AI models

6 models5 current1 older6 open weights
#134of 195Olmo 3.1 32B Instruct?Writing · Arena Text · Creative writing
Jan 13, 2026Olmo 3.1 32B Instructnewest release
$0.20 / $0.60Olmo 3.1 32B Instruct?cheapest · per 1M in / out
3categories ranked?Chat · Writing · Vision

Current lineup?

Writing & Language

Arena Text · creative writing · 195 ranked
Full ranking →
RankModelEloIn / out
#134 of 195Olmo 3.1 32B Instruct1,293$0.20 / $0.60#160 of 195Olmo 3.1 32B Think1,248—

Vision & Documents

MMMU-Pro (vision) · 124 ranked
Full ranking →
RankModelScoreIn / out
#121 of 124Molmo2 8B37.5—

Allen Institute for AI API pricing?

1 models
ModelInputOutputCache readContextReleased ↓Status
Olmo 3.1 32B Instruct
h$0.20$0.60—66KJan 2026

Model lines?

Olmo Think
6.36.36.46.46.4 Dec ’25 Release date Humanity's Last Exam
6.36.4 Dec ’25 Release date Humanity's Last Exam

Retired & older

ModelStatusReplace withStill onReleased
Superseded
Superseded—Nov 2025