feat: Nemo Gym <> VeRL Integration
@cmunley1 is already working on this.
Since Apr 20, 2026.
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Description
Use cases, pain points, and background
VeRL is a very popular training framework we should integrate with.
Description:
We should develop a generic interface such that VeRL can use any NeMo Gym environments. There should be a tutorial in VeRL docs that demonstrates how to use one or more NeMo Gym environments with VeRL for training. There should also be a corresponding docs page in NeMo Gym docs that links to the tutorial in VeRL.
Design:
What files should be touched? What logic should be written?
Out of scope:
What are some items that this issue could be mistaken to cover that this issue should explicitly NOT cover?
Acceptance Criteria:
- Implement the Gym + VeRL integration
- Replicate a Gym baselining run (GRPO on Qwen 3 4B Instruct, 32k seq len, Library judge math verifier, DAPO17k dataset, AIME24 validation) and report the W&B curves
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Assessment
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