Ai2 · Molmoact2 Pretrain · active
MolmoAct2-Pretrain
MolmoAct2-Pretrain is an open-weight robotics policy model published by Ai2.
allenai/MolmoAct2-PretrainThis page represents one immutable developer model ID. Serving endpoints, pricing, regions, quantizations, and service tiers attach separately and never create duplicate model records.
Provider availability
Serving endpoints and pricing
Technical specification
Capabilities
Version lineage
Explicit unknowns
- Release date
- Maximum output
- Knowledge cutoff
- API availability
- Provider pricing
Comparable peers
Related model comparisons
Questions
MolmoAct2-Pretrain FAQs
What is MolmoAct2-Pretrain?+
MolmoAct2-Pretrain is an open-weight robotics policy model published by Ai2. It is developed by Ai2 and its current sourced lifecycle status is active.
What inputs and outputs does MolmoAct2-Pretrain support?+
MolmoAct2-Pretrain's current record lists Model-specific input as input and Model-specific input as output.
How much context does MolmoAct2-Pretrain support?+
The current record lists a 16,384-token context window and does not report a maximum output length.
Is MolmoAct2-Pretrain available through an API?+
MolmoAct2-Pretrain's current primary-source record does not establish API availability. No provider endpoint is treated as available without direct provider evidence.
How large is MolmoAct2-Pretrain?+
The current record lists 4.9B total parameters and an unknown active parameter count. Its architecture is MolmoAct2ForConditionalGeneration.
What capabilities and tasks does MolmoAct2-Pretrain support?+
MolmoAct2-Pretrain's recorded capabilities are robot action generation. Its supported tasks are image, robotics, and text.
Can MolmoAct2-Pretrain be self-hosted?+
MolmoAct2-Pretrain is an open-weight model. Self-hosting is supported, with no license recorded.
Does MolmoAct2-Pretrain have related versions or aliases?+
No predecessor is recorded. No successor is recorded. Recorded aliases are allenai/MolmoAct2-Pretrain.
Which models can MolmoAct2-Pretrain be compared with?+
The current compatible peer set includes MolmoAct2-Think, Phi-4-multimodal-instruct, granite-vision-4.1-4b, Ministral-3-3B-Base-2512, and Ministral-3-8B-Base-2512. Compatibility requires shared sourced modalities and tasks; it does not imply that one model is better. Browse model comparisons →
How current is the Model Markets record for MolmoAct2-Pretrain?+
MolmoAct2-Pretrain was last verified Aug 28, 2026 from Ai2's primary source, “allenai/MolmoAct2-Pretrain developer model repository.” The evidence is classified as official fact.
Primary evidence