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Gemini 4 Argon1526Claude Opus 5.51516Claude Fable 5.11513Claude Opus 51508Claude Opus 4.61502▲4Muse Wonder1501Gemini 3.8 Flash1498MiMo-V2.6-Pro1491Muse Spark 1.31491Claude Fable 51491▼2Claude Opus 4.71490▲6Gemini 3.7 Flash1490Qwen3.8-Max1484▲3Gemini 3.5 Flash1482▼1Muse Spark 1.21482▼8Gemini 3.1 Pro Preview1480▲0Gemini 3.6 Flash1480▲0Gemini 3 Pro1480Muse Spark 1.11478▼2Qwen3.7-Max-Preview1475▲1Kimi K31475▲2Muse Spark1474▲1GLM-5.31474Claude Sonnet 5.51473GLM-5.3-Flash1472▲1GPT-5.51472▲6Qwen3.5-Max-Preview1470▼1GLM-5.21470▲6GPT-5.41469▲17ERNIE 5.11468▼0Gemini 3 Flash1466▼1DeepSeek-V4.1-Flash-202609101464Gemini 4 Argon1526Claude Opus 5.51516Claude Fable 5.11513Claude Opus 51508Claude Opus 4.61502▲4Muse Wonder1501Gemini 3.8 Flash1498MiMo-V2.6-Pro1491Muse Spark 1.31491Claude Fable 51491▼2Claude Opus 4.71490▲6Gemini 3.7 Flash1490Qwen3.8-Max1484▲3Gemini 3.5 Flash1482▼1Muse Spark 1.21482▼8Gemini 3.1 Pro Preview1480▲0Gemini 3.6 Flash1480▲0Gemini 3 Pro1480Muse Spark 1.11478▼2Qwen3.7-Max-Preview1475▲1Kimi K31475▲2Muse Spark1474▲1GLM-5.31474Claude Sonnet 5.51473GLM-5.3-Flash1472▲1GPT-5.51472▲6Qwen3.5-Max-Preview1470▼1GLM-5.21470▲6GPT-5.41469▲17ERNIE 5.11468▼0Gemini 3 Flash1466▼1DeepSeek-V4.1-Flash-202609101464
MiMo-V2.5-Pro1464▼1GLM-5.11463▲0Claude Opus 4.81461▲8Claude Sonnet 4.61458▼1Gemini 2.5 Pro1458GPT-5.6 Sol1457Kimi K2.61455▲0Qwen3.7-Plus1455▲0MiMo-V2.6-Flash1452DeepSeek-V4-Pro1451▲1Claude Opus 4.51451▲0Grok 4.20 Beta1451Grok 4.20 Multi-Agent Beta1451▲1amazon-nova-experimental-chat1449Dola Seed 2.0 Pro1448▲1GPT-5.6 Terra1448Grok 4.51448▼2Qwen3.6-Max-Preview1447▲1GLM-51446▼0Kimi K2.51445NVIDIA-Nemotron-3-Ultra-550B-A55B1445ERNIE 5.01445▲0Grok 4.20 Beta 11445▲0GPT-6.1 Sol1444Gemma 4 31B1443▲1GPT-5.11443▲20Claude Sonnet 51442GPT-6 Astra1442IInkling1442▲2Step 5 Preview1442GLM-4.61440▼0Qwen3.8-27B1440▲1MiMo-V2.5-Pro1464▼1GLM-5.11463▲0Claude Opus 4.81461▲8Claude Sonnet 4.61458▼1Gemini 2.5 Pro1458GPT-5.6 Sol1457Kimi K2.61455▲0Qwen3.7-Plus1455▲0MiMo-V2.6-Flash1452DeepSeek-V4-Pro1451▲1Claude Opus 4.51451▲0Grok 4.20 Beta1451Grok 4.20 Multi-Agent Beta1451▲1amazon-nova-experimental-chat1449Dola Seed 2.0 Pro1448▲1GPT-5.6 Terra1448Grok 4.51448▼2Qwen3.6-Max-Preview1447▲1GLM-51446▼0Kimi K2.51445NVIDIA-Nemotron-3-Ultra-550B-A55B1445ERNIE 5.01445▲0Grok 4.20 Beta 11445▲0GPT-6.1 Sol1444Gemma 4 31B1443▲1GPT-5.11443▲20Claude Sonnet 51442GPT-6 Astra1442IInkling1442▲2Step 5 Preview1442GLM-4.61440▼0Qwen3.8-27B1440▲1

Ai2

Molmo 72B

Molmo 72B is an open-weight model from Ai2.

Developer
Ai2
Released
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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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LMArena, by category

LeaderboardRatingRankVotes
VisionLMArena1012145 / 1463K

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 72B

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 72B?

Molmo 72B is made by Ai2, founded 2014 and based in Seattle.

Is Molmo 72B open source?

Molmo 72B 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”.