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ManiSkill2: A Unified Benchmark for Generalizable Manipulation Skills

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arxiv 2302.04659 v1 pith:L5JZQWOL submitted 2023-02-09 cs.RO cs.AI

classification cs.ROcs.AI
keywords manipulationbenchmarkenvironmentsgeneralizablemaniskill2skillsalgorithmsbenchmarks
verification ladder T0 review T1 audit T2 compute T3 formal
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Generalizable manipulation skills, which can be composed to tackle long-horizon and complex daily chores, are one of the cornerstones of Embodied AI. However, existing benchmarks, mostly composed of a suite of simulatable environments, are insufficient to push cutting-edge research works because they lack object-level topological and geometric variations, are not based on fully dynamic simulation, or are short of native support for multiple types of manipulation tasks. To this end, we present ManiSkill2, the next generation of the SAPIEN ManiSkill benchmark, to address critical pain points often encountered by researchers when using benchmarks for generalizable manipulation skills. ManiSkill2 includes 20 manipulation task families with 2000+ object models and 4M+ demonstration frames, which cover stationary/mobile-base, single/dual-arm, and rigid/soft-body manipulation tasks with 2D/3D-input data simulated by fully dynamic engines. It defines a unified interface and evaluation protocol to support a wide range of algorithms (e.g., classic sense-plan-act, RL, IL), visual observations (point cloud, RGBD), and controllers (e.g., action type and parameterization). Moreover, it empowers fast visual input learning algorithms so that a CNN-based policy can collect samples at about 2000 FPS with 1 GPU and 16 processes on a regular workstation. It implements a render server infrastructure to allow sharing rendering resources across all environments, thereby significantly reducing memory usage. We open-source all codes of our benchmark (simulator, environments, and baselines) and host an online challenge open to interdisciplinary researchers.

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Cited by 17 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

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    Pretraining a VLA model on 18,561 hours of robot-synthesized egocentric human video mixed with robot data improves out-of-distribution manipulation success in simulation and on a real dual-arm robot.

  2. Weights or Skills? A Survey of Robot-Learning Techniques: from Action-Predicting Weights to Robots that Write their Own Skills

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    A taxonomy of robot learning on a weights-versus-skills axis, with a five-rung self-improvement ladder whose top cell (feedback plus memory plus search) holds only a few recent systems.

  3. SoftVTBench: A Safety-Aware Visuo-Tactile Benchmark for Physically Constrained Robotic Manipulation of Deformable Objects

    cs.RO 2026-07 conditional novelty 6.0 of 10

    Success-only metrics overstate deformable-manipulation performance; tactile sensing raises Safety Success (e.g. 21.4%→35.6% on Object-Soft) while Goal Success stays comparable.

  4. Pipette: An Embodied Simulation Platform, Benchmark, and Data-Efficient Augmentation Framework for Wet-Lab Robotics

    cs.RO 2026-06 unverdicted novelty 6.0 of 10

    With 30 demos per task, simulation replay augmentation raises SmolVLA wet-lab success from ~44% to ~75% and modestly helps π0, while ACT remains competitive as a non-VLA baseline.

  5. ManipArena: Comprehensive Real-world Evaluation of Reasoning-Oriented Generalist Robot Manipulation

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    A standardized real-robot evaluation suite with controlled diversity and OOD strata diagnoses complementary failure modes of multi-task VLAs and world-action models on reasoning-oriented manipulation.

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  7. DISCOVERSE: Efficient Robot Simulation in Complex High-Fidelity Environments

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    A simulation framework that combines 3D Gaussian Splatting with MuJoCo reports improved zero-shot transfer of manipulation policies from simulation to real robots.

  8. ArtGS:3D Gaussian Splatting for Interactive Visual-Physical Modeling and Manipulation of Articulated Objects

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    ArtGS combines multi-view 3D reconstruction, language-model joint initialization, and closed-loop optimization to improve articulated object manipulation.

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    WorldEval conditions a video generation model on a policy's internal action embeddings (Policy2Vec) and shows generated-video success rates correlate with real-world robot success rates.

  10. AnyBody: A Benchmark Suite for Cross-Embodiment Manipulation

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    AnyBody is a benchmark suite that tests cross-embodiment manipulation generalization along interpolation, extrapolation, and composition axes, and finds zero-shot generalization to unseen robot bodies remains difficult.

  11. Towards Trustworthy Embodied Intelligence: A Systems Framework and Graded Trustworthiness Levels

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    A four-layer systems framework and T0–T5 hierarchy for grading and maintaining bounded trustworthiness claims in embodied AI systems.

  12. JoyNexus: Service-Oriented Multi-Tenant Post-Training for VLA Models

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    A service-oriented multi-tenant architecture with schema-compatible group batching reduces aggregate GPU time for VLA post-training by about 28% in simulation.

  13. DIPOLE: Fusing Vision and Geometry for Robust Visuomotor Generalization

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    Fusing RGB and point-cloud inputs with training-time modality dropout plus cross-attention makes a diffusion visuomotor policy markedly more robust to visual and spatial shifts than unimodal or naively fused baselines.

  14. Reward Evolution with Graph-of-Thoughts: A Bi-Level Language Model Framework for Reinforcement Learning

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    RE-GoT combines graph-of-thoughts planning in LLMs with VLM feedback from rollout videos to automatically write and refine RL reward functions, beating prior LLM-based reward design on RoboGen and ManiSkill2.

  15. RoboPearls: Editable Video Simulation for Robot Manipulation

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    Across three VLA models and four simulated manipulation tasks, motion-instability and goal-distance metrics correlate with expert-rated execution quality, showing that binary success rates hide large quality differences.

  17. Data Pyramid for Embodied Manipulation

    cs.RO 2026-07 conditional novelty 3.0 of 10

    Embodied training data form a five-layer pyramid—real-robot, UMI, ego/exo, simulation, general V–L—ordered by the trade-off between scale and robot alignment, and model capabilities track how those layers are mixed.

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