Vision-language-action

Physical Intelligence π0.5

A generalist VLA that combines heterogeneous robot data, semantic prediction and web-derived supervision to study manipulation beyond its training locations.

Source contextPrimary specReviewed
Sources 2
π0.5 original research paper

Physical Intelligence · Published 2025-04-22 · Source accessed 2026-09-28

Physical-Intelligence/openpi official repository

Physical-Intelligence · Publication date not disclosed · Source accessed 2026-09-28

Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets.

Reviewed recordLast reviewed 4 sources ↗4 sourced fields

Architecture and scope

The paper studies home environments and high-level subtask prediction alongside low-level actions. OpenPI’s implementation supports the flow-based head and documents specific fine-tuned variants.

Source contextPrimary specReviewed
Sources 2
π0.5 original research paper

Physical Intelligence · Published 2025-04-22 · Source accessed 2026-09-28

Physical-Intelligence/openpi official repository

Physical-Intelligence · Publication date not disclosed · Source accessed 2026-09-28

Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets.

Access and reproducibility

Public OpenPI code and base checkpoints. Record the exact checkpoint, embodiment and data normalization when reproducing a policy.

Source contextPrimary specReviewed
Sources 2
π0.5 original research paper

Physical Intelligence · Published 2025-04-22 · Source accessed 2026-09-28

Physical-Intelligence/openpi official repository

Physical-Intelligence · Publication date not disclosed · Source accessed 2026-09-28

Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets.

Interpretation

The paper’s generalization experiments and downloaded checkpoint settings must not be conflated.

Source contextPrimary specReviewed
Sources 2
π0.5 original research paper

Physical Intelligence · Published 2025-04-22 · Source accessed 2026-09-28

Physical-Intelligence/openpi official repository

Physical-Intelligence · Publication date not disclosed · Source accessed 2026-09-28

Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets.

Model identity

Developer
Physical Intelligence
Primary specReviewed
Sources 1
π0.5 original research paper

Physical Intelligence · Published 2025-04-22 · Source accessed 2026-09-28

Exact version / scope
π0.5; openpi pi05_base
Primary specReviewed
Sources 1
Physical-Intelligence/openpi official repository

Physical-Intelligence · Publication date not disclosed · Source accessed 2026-09-28

Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets.

Category
Vision-language-action
Primary specReviewed
Sources 1
π0.5 original research paper

Physical Intelligence · Published 2025-04-22 · Source accessed 2026-09-28

Access model
Public OpenPI code and base checkpoints
Primary specReviewed
Sources 1
Physical-Intelligence/openpi official repository

Physical-Intelligence · Publication date not disclosed · Source accessed 2026-09-28

Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets.

License
Not publicly disclosed

Inputs, outputs & embodiment

Inputs
Not publicly disclosed
Outputs
Not publicly disclosed
Embodiment
Not publicly disclosed

Implementation & training

Compute
Not publicly disclosed
Training-data disclosures
Not publicly disclosed
Integrations
Not publicly disclosed

Reported benchmark results

Context before scores. Results from different benchmarks are not directly comparable. A simulation result does not establish real-world reliability, safety or commercial availability.
No result meets our complete revision and methodology requirements for this record yet. Inspect the original benchmark documentation before comparing published scores.

What this evidence does not establish

  • The paper’s generalization experiments and downloaded checkpoint settings must not be conflated.
  • Commercial price and operational support terms were not verified.

Relationships & deployments

Related reading is an editorial crosslink. Sourced connections describe relationships reported in the cited material. A link to a versioned profile does not establish compatibility with that version unless the connection note explicitly identifies it.

develops
Physical Intelligence → Physical Intelligence π0.5
Sources 2
Physical Intelligence — official portfolio and company information

Physical Intelligence · Publication date not disclosed · Source accessed 2026-09-28

Official-source text was reviewed through live web search/open output; some direct page fetches were sparse or blocked. Stored claims are limited to the inspected primary text. Recheck page rendering during the next source audit.

Physical Intelligence — partner accounts and deployment limitations

Physical Intelligence · Publication date not disclosed · Source accessed 2026-09-28

Official-source text was reviewed through live web search/open output; some direct page fetches were sparse or blocked. Stored claims are limited to the inspected primary text. Recheck page rendering during the next source audit.

Connection reviewed 2026-09-28

develops
Physical Intelligence → Physical Intelligence π0.5
Sources 1
π0.5 original research paper

Physical Intelligence · Published 2025-04-22 · Source accessed 2026-09-28

Connection reviewed 2026-09-28

uses
OpenPI → Physical Intelligence π0.5
Sources 1
Physical-Intelligence/openpi official repository

Physical-Intelligence · Publication date not disclosed · Source accessed 2026-09-28

Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets.

Connection reviewed 2026-09-28

Record history & verified changes

A research review records when we checked a source. It does not mark a product launch or a new deployment.

Initial reviewed record. No subsequent field change has been recorded.

Inspect the evidence

Sources & evidence

md-openpi
Physical-Intelligence/openpi official repository

Physical-Intelligence · Repository · Publication date not disclosed · Source accessed 2026-09-28

License: Apache-2.0 code; Gemma and other component terms apply separately. Factual summary and attribution only; no upstream prose, images, weights, or dataset redistributed.

Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets.

co-physical-intelligence
Physical Intelligence — official portfolio and company information

Physical Intelligence · Official spec · Publication date not disclosed · Source accessed 2026-09-28

Factual summary and attribution only; no upstream prose or dataset redistributed.

Official-source text was reviewed through live web search/open output; some direct page fetches were sparse or blocked. Stored claims are limited to the inspected primary text. Recheck page rendering during the next source audit.

co-physical-intelligence-2
Physical Intelligence — partner accounts and deployment limitations

Physical Intelligence · Official spec · Publication date not disclosed · Source accessed 2026-09-28

Factual summary and attribution only; no upstream prose or dataset redistributed.

Official-source text was reviewed through live web search/open output; some direct page fetches were sparse or blocked. Stored claims are limited to the inspected primary text. Recheck page rendering during the next source audit.