Robotics

π0 / π0.5 (openpi)

Robot control models from Physical Intelligence: folding laundry, tidying up, handling objects. π0.5 copes better in unfamiliar settings.

Developer
Physical Intelligence, USA
First release
Feb 2025
Latest release
Sep 2025
Sizes
about 3B
License
Commercial use with conditionsCode and weights released under Apache 2.0, but the model is built on Google's PaliGemma; copies in LeRobot carry Gemma terms
Running
On your own serverNeeds a GPU
Industries
Manufacturing and logistics, Science and research
Deploy on your server Hugging Face GitHub

What it does

  • Controlling robot arms and two-armed robots
  • Fine-tuning for your own operations
  • Pilots for automating manual work

Where it is used

ManufacturingWarehousesService robotics

Hardware requirements

LaptopLaptop or regular PC, up to 8 GB of VRAM — smaller versions
no versions
1 GPUOne GPU with 16–80 GB — mid-size versions
fits
ClusterServer with several GPUs — flagship versions
no versions

Versions

  1. π0.5
  2. π0 и π0-FAST

How to run it

On your own serverWeights are downloaded from Hugging Face and served with vLLM (load and API) or llama.cpp (modest hardware). The model then runs in a closed network with no per-request fees.Hugging Face
How much hardware you needCalculate the VRAM for the model size, context length and number of concurrent requests.Open the hardware calculator

I can set this up end to end: pick the model size, deploy it on your server and connect it to your systems.

Frequently asked questions

Can π0 / π0.5 (openpi) be used in a commercial project?

With conditions. License: Code and weights released under Apache 2.0, but the model is built on Google's PaliGemma; copies in LeRobot carry Gemma terms. Restrictions vary — region, company revenue, attribution requirements. Have a lawyer check the terms before a commercial launch.

What hardware does π0 / π0.5 (openpi) need?

At minimum: One GPU with 16–80 GB — mid-size versions. Without a GPU the model is not practical. You can calculate the exact VRAM for your model size and context in the hardware calculator.

Does π0 / π0.5 (openpi) support Russian?

Language does not matter for this model: it does not work with text.

Where can I download π0 / π0.5 (openpi) and what does it cost?

The π0 / π0.5 (openpi) weights are open and free to download. You only pay for the hardware it runs on and for the setup. Source links are at the bottom of this page.

How I deploy it for clients

  1. SelectionI pick the model size for your task and hardware and test it on your examples.
  2. DeploymentI deploy it on your server or in a closed network and provide an API.
  3. Fine-tuningI fine-tune it on your data (LoRA) or connect a knowledge base — whichever is cheaper for the task.
  4. IntegrationI connect it to your CRM, ERP, bot, website or team chat and set up monitoring.

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Details

Source: github.com/Physical-Intelligence/openpi. Data checked against the model card on 22 Sep 2026. Have a lawyer review the license before commercial launch.