robot policy
π0-FAST
Autoregressive version of π0 released with open weights.
Levelmodel
Classrobot policy
Parametersnot in the notes
Contextnot in the notes
Released4 Feb 2025
Opennessopen weights permissive
Runs onnot in the notes
Statusactive
Lineage
successor
π0 is the parent (successor)medium confidencenotesWhere this comes from
Parent and child relations from model cards, Hugging Face base_model fields and the genealogy tables of the research notes. The tree shows two generations each way, 3 models. Confidence and evidence are the notes' own.
Identity
- Developer
- Physical Intelligence
- Family
- π (pi) models
- Released
- 4 Feb 2025 sourcesannouncement page
- Weights published
- –
- Record checked
- 10 Oct 2026
Where this comes from
Developer and dates from the research notes. Release date is the vendor's public announcement; weights date is when open weights were published.
Architecture and Size
- Architecture
- autoregressive Autoregressive with FAST action tokenizer
- Total parameters
- – sources
- Active parameters
- –
- Checkpoint parameters
- –
- Context length
- not in the notes
- Input
- image, text
- Output
- action
Where this comes from
Parameter counts as the developer states them. Where the checkpoint holds a different total, both are shown (register A16).
Openness and Access
- Openness
- open weights permissive
- Licence
- Apache License 2.0 sources
- Access routes
- open weights download
Where this comes from
The licence file governs over registry tags and aggregator labels.
Deployment
- Runs on
- not in the notes
- Footprint
- not in the notes
- Runtimes
- not in the notes
Where this comes from
Deployment tiers and runtimes as named in the notes. Footprint is the notes' figure, not a measurement by AURION.
Indonesia
- Indonesian support
- not stated
- Regional languages
- not in the notes
- Jakarta hosting
- unknown
- Languages
- not in the notes
Where this comes from
Indonesia fields are carried on every model; unknown is an allowed value.
Benchmark Results
The notes record no benchmark result for this model.
Industry Use Cases
No industry use case links this model.
Links
DeveloperPhysical Intelligencestartup, USA
Physical Intelligencestartup, USAModelπ0-FASTPhysical Intelligence, robot policy
π0-FASTPhysical Intelligence, robot policyR&D TopicsVision-Language-Action Robot Policies
Use CasesHumanoid Parts Handling in Automotive ManufacturingIndustrialRetail Grocery Manipulation RobotsRetail and LogisticsHumanoid Robots in LogisticsRetail and LogisticsUse cases of models in the same R&D topic; none is recorded for this model itself.
Who Runs It
BMW (Spartanburg plant)In production, 30 Jun 2026Catalyst BrandsContract signed, 26 May 2026Deployments of these use cases; none names this model.
BMW (Spartanburg plant)In production, 30 Jun 2026Catalyst BrandsContract signed, 26 May 2026Deployments of these use cases; none names this model.Models 2
Organisations 1
Sources
- pi.website https://www.pi.website/
- GitHub - Physical-Intelligence/openpi github.com https://github.com/Physical-Intelligence/openpi
To cite this page: Project AURION, AI Use-Cases Research & Innovation, "π0-FAST", https://aurion.semai.id/models/physical-intelligence-pi0-fast/, records of October 2026.