Third-Party Notices

The repository-level MIT license covers original VLA-RL code only. The components below retain their own copyright notices and license terms. Source headers remain authoritative when they are more specific than this summary.

veRL

• Source: https://github.com/volcengine/verl
• License: Apache-2.0, see LICENSES/Apache-2.0.txt
• Copyright: 2024 ByteDance Ltd. and/or its affiliates
• Vendored scope: the distributed training framework under verl_vla/

verl_vla originated from veRL and contains local VLA-specific modifications. The standalone upstream snapshot under verl/ is not part of the intended public package.

vLLM

• Source: https://github.com/vllm-project/vllm
• License: Apache-2.0, see LICENSES/Apache-2.0.txt
• Copyright: 2023 The vLLM team; subsequent ByteDance modifications where noted
• Vendored scope: verl_vla/third_party/vllm/ and files whose headers identify vLLM adaptations

The repository contains compatibility adapters for several vLLM API versions. The directory names record the corresponding upstream version families.

OpenPI and Big Vision

• Source: https://github.com/Physical-Intelligence/openpi
• License: Apache-2.0, see LICENSES/Apache-2.0.txt
• Vendored scope: verl_vla/utils/vla_utils/pi05/openpi/

Some Pi05 modules are adapted from Google's Big Vision project and retain the Big Vision copyright headers. Use of Gemma model weights or model derivatives is additionally governed by LICENSES/Gemma-Terms-of-Use.txt.

OpenVLA-OFT

• Source: https://github.com/moojink/openvla-oft
• License: MIT, see LICENSES/OpenVLA-OFT-MIT.txt
• Vendored scope: verl_vla/utils/vla_utils/openvla/, verl_vla/utils/vla_utils/openvla_oft/, and verl_vla/utils/vla_utils/openvla_oft_flow/

VLA-Adapter

• Source: https://github.com/OpenHelix-Team/VLA-Adapter
• License: MIT, see LICENSES/VLA-Adapter-MIT.txt
• Vendored scope: verl_vla/utils/vla_utils/vla_adapter/

Shanghai Innovation Institute RL Environment Adapter

• License: Apache-2.0, see LICENSES/Apache-2.0.txt
• Copyright: 2025 Shanghai Innovation Institute
• Vendored scope: verl_vla/environment/

These files were extracted from the former siiRL snapshot and adapted to use package-local imports, standard logging, and optional LIBERO imports.

Hugging Face Transformers

• Source: https://github.com/huggingface/transformers
• License: Apache-2.0, see LICENSES/Apache-2.0.txt
• Vendored scope: files whose headers or source comments identify Transformers adaptations, including Pi05 replacement modules and Prismatic HF adapters

Attribution Maintenance

Before a public release, every retained vendored component must record an exact upstream tag or commit and a summary of local modifications. Removing a component requires removing its stale notice only after a repository-wide reference scan confirms that no derived code remains.