MODEL PROFILE

Molmo2-ER

allenai · Molmo2-ER

**Molmo2-ER** (Embodied Reasoning) is a 4B vision–language model specialized for the embodied perception skills that downstream action models depend on: scene understanding, pixel-accurate pointing, multi-image and egocentric–exocentric correspondence, and video temporal reasoning. It is built on top of Molmo2 (Qwen3-4B backbone + SigLIP2 vision encoder) and serves as the vision–language backbone of the **MolmoAct2** action reasoning model. - **Outperforms every open-weight baseline** as well as the strongest closed-source models — including **Gemini Robot-ER 1.5 Thinking** and **GPT-5** — on **9 of 13** established embodied reasoning benchmarks (Point-Bench, RefSpatial, BLINK, CV-Bench, ERQA, EmbSpatial, MindCube, SAT, VSI-Bench). - **Overall average 63.8%**, a **+17 point** improvement over the Molmo2 starting point.

Visual QAmultimodallicense:apache-2.0
Context windowNot disclosed
Input → OutputText、Image → Text
Model weightsNot verified
Profile updated2026/10/31 23:06:49
OVERVIEW

Model overview

**Molmo2-ER** (Embodied Reasoning) is a 4B vision–language model specialized for the embodied perception skills that downstream action models depend on: scene understanding, pixel-accurate pointing, multi-image and egocentric–exocentric correspondence, and video temporal reasoning. It is built on top of Molmo2 (Qwen3-4B backbone + SigLIP2 vision encoder) and serves as the vision–language backbone of the **MolmoAct2** action reasoning model. - **Outperforms every open-weight baseline** as well as the strongest closed-source models — including **Gemini Robot-ER 1.5 Thinking** and **GPT-5** — on **9 of 13** established embodied reasoning benchmarks (Point-Bench, RefSpatial, BLINK, CV-Bench, ERQA, EmbSpatial, MindCube, SAT, VSI-Bench). - **Overall average 63.8%**, a **+17 point** improvement over the Molmo2 starting point.

Key features

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Limitations & considerations

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PRICING & COST

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INDEPENDENT BENCHMARKS

Public benchmarks & run configuration

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Frequently asked questions

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Sources & traceability

许可证:apache-2.0。模型介绍与第三方评测均以原来源的具体版本和方法为准。