MolmoAct 2 Performance: Comparing New Robotics AI Benchmarks

Ai2 just released MolmoAct 2: a fully open VLA-based architecture that runs 37x faster than the previous version and exceeds the Pi-05 model's performance on real-world robotics benchmarks. Full breakdown of the architecture, the OpenFAST tokenizer, and the 720-hour bimanual dataset they released alongside the model. Source: https://arxiv.org/abs/2605.02881 Project page: https://allenai.org/blog/molmoact2 Code: https://github.com/allenai/molmoact2 Timestamps: 00:00 Intro 00:51 The problem with current VLAs 01:41 The core idea: adaptive 3D reasoning 02:39 How it actually works (4 components) 04:16 The 3 numbers that matter 05:09 What this means for builders 05:38 My take 06:15 Outro Subscribe for more AI breakdowns X: @sebuzdugan Medium: medium.com/@sebuzdugan