π₀.₅ (Pi05) is a Vision-Language-Action model from Physical Intelligence designed for open-world generalization: it evolves π₀ to generalize to entirely new environments and situations that were never seen during training. The LeRobot implementation is adapted from their open-source OpenPI repository. This policy has been trained and pushed to the Hub using LeRobot. Learn how to train and run it in the LeRobot pi05 guide, or browse the full documentation. The policy consumes these observation features and produces these action features. Inputs Outputs New to LeRobot? These guides cover the full workflow: - Install LeRobot — set up the lerobot package. - Hardware setup — assemble, wire, and…
Open-weight model · Robotics
Redox_200epi_subtask_pi052
by Leapshared leapshared/Redox_200epi_subtask_pi052
Redox_200epi_subtask_pi052 is an open-weight model for robotics from Leapshared, released under Gemma Terms of Use. It has 4.1B parameters. At 16-bit it needs about 9.9 GB of GPU memory, which fits on 1x MI300X from $1.85 an hour, at the lowest prices in the SAVRN Index.
OpenArm 양팔 로봇(biopenarmfollower, 카메라 3대, state·action 16차원)의 Redox 시연 200개로 체크포인트 하나가 "task 문장 → 서브태스크 문장 생성 → 그 문장을 조건으로 액션 청크(50스텝)"를 한다. task 문장 (학습에 쓴 것은 이것 하나다): 1. lift the metal plate out of the left beaker 2. move the plate over the blue solution 3.
Runs On
What it takes to serve Redox_200epi_subtask_pi052 (4.1B parameters): the memory its weights need at each precision, and the cheapest way to rent enough data-center GPUs to hold them.
| Precision | Weights | Memory needed | Cheapest setup | Per hour | Also fits |
|---|---|---|---|---|---|
| 16-bit | 8.3 GB | 9.9 GB | 1x MI300X (192 GB) Vultr |
$1.85 | 1x H100 $1.99 · 1x MI325X $2.00 |
| 8-bit | 4.1 GB | 5.0 GB | 1x MI300X (192 GB) Vultr |
$1.85 | 1x H100 $1.99 · 1x MI325X $2.00 |
| 4-bit | 2.1 GB | 2.5 GB | 1x MI300X (192 GB) Vultr |
$1.85 | 1x H100 $1.99 · 1x MI325X $2.00 |
Memory is the weights at that precision plus 20% for the runtime and a short context; a long context needs more. Prices are the lowest on-demand hourly rates in the SAVRN Index, read Oct 22, 2026.
Redox_200epi_subtask_pi052 on every accelerator the SAVRN Index prices, at every precision
Model Card
OpenArm 양팔 로봇(biopenarmfollower, 카메라 3대, state·action 16차원)의 Redox 시연 200개로 체크포인트 하나가 "task 문장 → 서브태스크 문장 생성 → 그 문장을 조건으로 액션 청크(50스텝)"를 한다. task 문장 (학습에 쓴 것은 이것 하나다): 1. lift the metal plate out of the left beaker 2. move the plate over the blue solution 3. point at the plate with the left hand 4. lower the plate into the blue solution 5. hold the plate still in the solution 6. raise the plate and point at it 7. put the plate into the left beaker 8. return to the home posture - lerobot PR #4184의 브랜치 codex/pi052-language-policy가 필요하다 (학습에 쓴 커밋 3298e15, lerobot 0.6.2). PyPI의 0.6.1에는 pi052 정책도 --interactive도 없다. - 그 커밋의 액션 추론은 그대로는 죽는다: TypeError: PI05Pytorch.embedprefix() takes 5 positional…
Excerpt from the card by Leapshared, licensed gemma.
Identity and Version
- Repository
- leapshared/Redox_200epi_subtask_pi052
- Publisher
- Leapshared
- Task
- Robotics
- Modality
- Control
- Library
- lerobot
- Parameters
- 4.1B parameters
- Languages
- Not stated by the source
- Revision
- 5c6d092dc8f070b8327a53d9233b6cef485b3b75
- First published
- 2026-09-21
- Last updated
- 2026-09-21
Files and Weights
60 files, 82.9 GB in total. The weights are 15 files totalling 82.9 GB in safetensors.
Every file
| File | Type | Size | SHA-256 |
|---|---|---|---|
| checkpoints/015000/pretrained_model/model.safetensors | Weights | 16.6 GB | 7c3c266abd88 |
| checkpoints/015000/pretrained_model/policy_postprocessor_step_0_unnormalizer_processor.safetensors | Weights | 9.6 KB | fdb692be9b72 |
| checkpoints/015000/pretrained_model/policy_preprocessor_step_3_normalizer_processor.safetensors | Weights | 9.5 KB | 4aca0450a0f2 |
| checkpoints/020000/pretrained_model/model.safetensors | Weights | 16.6 GB | 4a26775f2bf5 |
| checkpoints/020000/pretrained_model/policy_postprocessor_step_0_unnormalizer_processor.safetensors | Weights | 9.6 KB | fdb692be9b72 |
| checkpoints/020000/pretrained_model/policy_preprocessor_step_3_normalizer_processor.safetensors | Weights | 9.5 KB | 4aca0450a0f2 |
| checkpoints/025000/pretrained_model/model.safetensors | Weights | 16.6 GB | f350a7bd6348 |
| checkpoints/025000/pretrained_model/policy_postprocessor_step_0_unnormalizer_processor.safetensors | Weights | 9.6 KB | fdb692be9b72 |
| checkpoints/025000/pretrained_model/policy_preprocessor_step_3_normalizer_processor.safetensors | Weights | 9.5 KB | 4aca0450a0f2 |
| checkpoints/030000/pretrained_model/model.safetensors | Weights | 16.6 GB | 15d3c9e15fc2 |
| checkpoints/030000/pretrained_model/policy_postprocessor_step_0_unnormalizer_processor.safetensors | Weights | 9.6 KB | fdb692be9b72 |
| checkpoints/030000/pretrained_model/policy_preprocessor_step_3_normalizer_processor.safetensors | Weights | 9.5 KB | 4aca0450a0f2 |
| model.safetensors | Weights | 16.6 GB | 15d3c9e15fc2 |
| policy_postprocessor_step_0_unnormalizer_processor.safetensors | Weights | 9.6 KB | fdb692be9b72 |
| policy_preprocessor_step_3_normalizer_processor.safetensors | Weights | 9.5 KB | 4aca0450a0f2 |
| action_tokenizer/processor_config.json | Configuration | 253 B | — |
| checkpoints/015000/pretrained_model/action_tokenizer/processor_config.json | Configuration | 253 B | — |
| checkpoints/015000/pretrained_model/config.json | Configuration | 5.4 KB | — |
| checkpoints/015000/pretrained_model/policy_postprocessor.json | Configuration | 780 B | — |
| checkpoints/015000/pretrained_model/policy_preprocessor.json | Configuration | 6.1 KB | — |
| checkpoints/015000/pretrained_model/train_config.json | Configuration | 12.0 KB | — |
| checkpoints/020000/pretrained_model/action_tokenizer/processor_config.json | Configuration | 253 B | — |
| checkpoints/020000/pretrained_model/config.json | Configuration | 5.4 KB | — |
| checkpoints/020000/pretrained_model/policy_postprocessor.json | Configuration | 780 B | — |
| checkpoints/020000/pretrained_model/policy_preprocessor.json | Configuration | 6.1 KB | — |
| checkpoints/020000/pretrained_model/train_config.json | Configuration | 12.0 KB | — |
| checkpoints/025000/pretrained_model/action_tokenizer/processor_config.json | Configuration | 253 B | — |
| checkpoints/025000/pretrained_model/config.json | Configuration | 5.4 KB | — |
| checkpoints/025000/pretrained_model/policy_postprocessor.json | Configuration | 780 B | — |
| checkpoints/025000/pretrained_model/policy_preprocessor.json | Configuration | 6.1 KB | — |
| checkpoints/025000/pretrained_model/train_config.json | Configuration | 12.0 KB | — |
| checkpoints/030000/pretrained_model/action_tokenizer/processor_config.json | Configuration | 253 B | — |
| checkpoints/030000/pretrained_model/config.json | Configuration | 5.4 KB | — |
| checkpoints/030000/pretrained_model/policy_postprocessor.json | Configuration | 780 B | — |
| checkpoints/030000/pretrained_model/policy_preprocessor.json | Configuration | 6.1 KB | — |
| checkpoints/030000/pretrained_model/train_config.json | Configuration | 12.0 KB | — |
| config.json | Configuration | 5.4 KB | — |
| policy_postprocessor.json | Configuration | 780 B | — |
| policy_preprocessor.json | Configuration | 6.1 KB | — |
| rollout_pi052.py | Configuration | 5.4 KB | — |
| train_config.json | Configuration | 12.0 KB | — |
| README.md | Documentation | 11.5 KB | — |
| pi052_embed_prefix.patch | Other | 977 B | — |
| redox_subtasks.txt | Other | 400 B | — |
| .gitattributes | Repository | 1.5 KB | — |
| action_tokenizer/bpe_tokenizer/tokenizer.json | Tokenizer | 738.9 KB | — |
| action_tokenizer/bpe_tokenizer/tokenizer_config.json | Tokenizer | 333 B | — |
| action_tokenizer/processing_action_tokenizer.py | Tokenizer | 6.1 KB | — |
| checkpoints/015000/pretrained_model/action_tokenizer/bpe_tokenizer/tokenizer.json | Tokenizer | 738.9 KB | — |
| checkpoints/015000/pretrained_model/action_tokenizer/bpe_tokenizer/tokenizer_config.json | Tokenizer | 333 B | — |
| checkpoints/015000/pretrained_model/action_tokenizer/processing_action_tokenizer.py | Tokenizer | 6.1 KB | — |
| checkpoints/020000/pretrained_model/action_tokenizer/bpe_tokenizer/tokenizer.json | Tokenizer | 738.9 KB | — |
| checkpoints/020000/pretrained_model/action_tokenizer/bpe_tokenizer/tokenizer_config.json | Tokenizer | 333 B | — |
| checkpoints/020000/pretrained_model/action_tokenizer/processing_action_tokenizer.py | Tokenizer | 6.1 KB | — |
| checkpoints/025000/pretrained_model/action_tokenizer/bpe_tokenizer/tokenizer.json | Tokenizer | 738.9 KB | — |
| checkpoints/025000/pretrained_model/action_tokenizer/bpe_tokenizer/tokenizer_config.json | Tokenizer | 333 B | — |
| checkpoints/025000/pretrained_model/action_tokenizer/processing_action_tokenizer.py | Tokenizer | 6.1 KB | — |
| checkpoints/030000/pretrained_model/action_tokenizer/bpe_tokenizer/tokenizer.json | Tokenizer | 738.9 KB | — |
| checkpoints/030000/pretrained_model/action_tokenizer/bpe_tokenizer/tokenizer_config.json | Tokenizer | 333 B | — |
| checkpoints/030000/pretrained_model/action_tokenizer/processing_action_tokenizer.py | Tokenizer | 6.1 KB | — |
License and Download
- License
- gemma
- Access
- Open weights, no gate
- Download size
- 82.9 GB
Released by Leapshared through its official repository on Hugging Face.
Built From
- Derived from lerobot/pi052_base
Memory Requirements
| Precision | Weights in memory |
|---|---|
| As published | 82.9 GB |
| 16-bit | 8.3 GB |
| 8-bit | 4.1 GB |
| 4-bit | 2.1 GB |
Weights only, from the published parameter count; the key-value cache and runtime add to this.
Questions About Redox_200epi_subtask_pi052
How much GPU memory does Redox_200epi_subtask_pi052 need?
About 9.9 GB at 16-bit and 2.5 GB at 4-bit: the weights (4.1B parameters) plus a working margin. A long context needs more.
What is the cheapest GPU to run Redox_200epi_subtask_pi052 on?
At 16-bit, 1x MI300X from $1.85 an hour; at 4-bit, 1x MI300X from $1.85 an hour, at the lowest on-demand prices the SAVRN Index lists.
Can I use Redox_200epi_subtask_pi052 commercially?
Yes, with conditions. Redox_200epi_subtask_pi052 is released under Gemma Terms of Use. Gemma models are released under Google's Gemma Terms of Use, which permit commercial use and redistribution subject to the Gemma Prohibited Use Policy, whose restrictions must be passed on to anyone the model is distributed to.
Similar Models
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Final checkpoint after 60,000 optimization steps. This is a trained policy, not an evaluation result. Policy weights, policy configuration, preprocessing/postprocessing and normalization states are at the repository root. Training resume files are in trainingstate/. Host-specific paths were removed from JSON metadata; supply local dataset/output paths when resuming. The tokenizer reference points to google/paligemma-3b-pt-224 (training revision 35e4f46485b4d07967e7e9935bc3786aad50687c). For subtask models, supply the corresponding per-frame subtask as the policy task text. For 3-view models also supply the dataset-defined keyframe image. No real-robot evaluation metrics are claimed here.…
Final checkpoint after 60,000 optimization steps. This is a trained policy, not an evaluation result. Policy weights, policy configuration, preprocessing/postprocessing and normalization states are at the repository root. Training resume files are in trainingstate/. Host-specific paths were removed from JSON metadata; supply local dataset/output paths when resuming. The tokenizer reference points to google/paligemma-3b-pt-224 (training revision 35e4f46485b4d07967e7e9935bc3786aad50687c). For subtask models, supply the corresponding per-frame subtask as the policy task text. For 3-view models also supply the dataset-defined keyframe image. No real-robot evaluation metrics are claimed here.…
π₀.₅ (Pi05) is a Vision-Language-Action model from Physical Intelligence designed for open-world generalization: it evolves π₀ to generalize to entirely new environments and situations that were never seen during training. The LeRobot implementation is adapted from their open-source OpenPI repository. This policy has been trained and pushed to the Hub using LeRobot. Learn how to train and run it in the LeRobot pi05 guide, or browse the full documentation. The policy consumes these observation features and produces these action features. Inputs Outputs New to LeRobot? These guides cover the full workflow: - Install LeRobot — set up the lerobot package. - Hardware setup — assemble, wire, and…
π₀.₅ (Pi05) is a Vision-Language-Action model from Physical Intelligence designed for open-world generalization: it evolves π₀ to generalize to entirely new environments and situations that were never seen during training. The LeRobot implementation is adapted from their open-source OpenPI repository. This policy has been trained and pushed to the Hub using LeRobot. Learn how to train and run it in the LeRobot pi05 guide, or browse the full documentation. The policy consumes these observation features and produces these action features. Inputs Outputs New to LeRobot? These guides cover the full workflow: - Install LeRobot — set up the lerobot package. - Hardware setup — assemble, wire, and…