Ai2

Molmo 2 8B

Molmo 2 8B is an open-weight model from Ai2. It ranks #260 of 351 on the LMArena text leaderboard with a rating of 1288.

LMArena text1288−6 in 30 days
Rank#260/351
95% interval1267–1309
Votes823
Developer
Ai2
Released
Feb 9, 2026
Context window
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Price in / out, per 1M tokens
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Weights
Open · Apache 2.0
Inputs
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Reasoning
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Tool use
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Molmo 2 8B, LMArena text rating over time
12701280129013001310Feb 26Apr 26Jun 26Aug 26Oct 26
LatestMolmo 2 8B 1288

The rating LMArena published at each update since Feb 9, 2026. Ratings move as votes come in and new models join.

LMArena, by category

LeaderboardRatingRankVotes
TextLMArena1288260 / 351823
Instruction followingLMArena1270256 / 351220
Hard promptsLMArena1287255 / 351451
VisionLMArena1081136 / 1461.2K

LMArena, CC BY 4.0, as of Oct 22, 2026. Where a model is rated at several effort levels, its best is shown.

Compare Molmo 2 8B

Ai2

The Allen Institute for AI builds OLMo, fully open models with open data and training code. Founded 2014, based in Seattle. allenai.org

Questions

Who makes Molmo 2 8B?

Molmo 2 8B is made by Ai2, founded 2014 and based in Seattle.

How does Molmo 2 8B rank?

#260 of 351 on LMArena’s text leaderboard, rated 1288 (95% interval 1267–1309) from 823 votes, as of Oct 22, 2026.

Is Molmo 2 8B open source?

Molmo 2 8B has open weights under the Apache 2.0 license.

Sources

Every number on this page comes from these sources; models without a published number show none. Download the data. Cite as “Nexus Explorer, nexus.inc/models”.