NVIDIA-NeMo/Gym

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Evaluate and improve models and agents using environments

Stars: 1.2k
Forks: 349
Open beginner issues: 1
Indexed issues: 604
Avg merge: 1d 23h
Merged PRs (30d): 324

Dominant language: Python
License: Apache-2.0
Last GitHub push: Sep 19, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

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26 beginner-friendly issues open

gymnasium_agent: Reasoning Included in Past Conversation History Open

community-request

Difficulty 2/5 1-3 hours Newbie friendliness 84/100

NVIDIA-NeMo/Gym#3500 · Opened Sep 17, 2026
Document agents that don't fully integrate into gym Open

Difficulty 1/5 1-3 hours Newbie friendliness 74/100

NVIDIA-NeMo/Gym#3328 · 1 comment · Opened Sep 11, 2026
fix(responses): downconverter rejects include on presence, so Codex CLI cannot call any chat-backed model server Open

Difficulty 2/5 1-3 hours Newbie friendliness 86/100

NVIDIA-NeMo/Gym#3312 · Opened Sep 11, 2026
[task] Make uv venv --seed configurable Open

Difficulty 2/5 1-3 hours Newbie friendliness 85/100

NVIDIA-NeMo/Gym#2994 · Opened Sep 2, 2026
[docs] document `prefetch` CLI Command Open

documentation

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

NVIDIA-NeMo/Gym#2937 · 1 comment · Opened Sep 1, 2026
[VDR][v0.6.0] ERR-98efac34 · Unreachable head server surfaces as a 138-line traceback with the useful message on the last line Open

Difficulty 2/5 1-3 hours Newbie friendliness 82/100

NVIDIA-NeMo/Gym#2687 · Opened Aug 23, 2026
fix(token-id-capture): ignore auxiliary model-server requests when tracking completeness Open

Difficulty 2/5 1-3 hours Newbie friendliness 84/100

NVIDIA-NeMo/Gym#2678 · Opened Aug 23, 2026
fix(mini_swe_agent_2): remove duplicate datasets config key Open

Difficulty 2/5 1-3 hours Newbie friendliness 88/100

NVIDIA-NeMo/Gym#2664 · Opened Aug 21, 2026
docs(fern): Phase 4 — document next-GA freeze-tag process and demotion path Open

documentation

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

NVIDIA-NeMo/Gym#2524 · Opened Aug 12, 2026
docs: add Axolotl <> Train Open

documentation training

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

NVIDIA-NeMo/Gym#2496 · 2 comments · Opened Aug 11, 2026
docs: Add Miles into RL training Open

documentation

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

NVIDIA-NeMo/Gym#2469 · 2 comments · 1 reaction · Opened Aug 11, 2026
[VDR] TUT-f93062c5 · Offline-training filter drops 100% of real rollouts (requires a 'success' field Gym never emits) Open

vdr

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

NVIDIA-NeMo/Gym#2235 · 1 comment · Opened Jul 30, 2026
[VDR] TUT-a28798eb · Single-step tutorial's env.yaml recipe fails: OPENAI_API_KEY is never read Open

vdr

Difficulty 1/5 Under an hour Newbie friendliness 91/100

NVIDIA-NeMo/Gym#2233 · 1 comment · Opened Jul 30, 2026
[VDR] CFG-edfe5d1c · 22 shipped configs crash validate with a raw omegaconf traceback Open

vdr

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

NVIDIA-NeMo/Gym#2224 · Opened Jul 30, 2026
chore: update CI workflow to use new CLI commands Open

Difficulty 2/5 1-3 hours Newbie friendliness 65/100

NVIDIA-NeMo/Gym#1901 · Opened Jul 2, 2026
Remove model recipe column from RL framework compatibility table Open

Difficulty 1/5 Under an hour Newbie friendliness 88/100

NVIDIA-NeMo/Gym#1527 · Opened Jun 4, 2026
docs: importance of batch size with multi-env training Open

documentation training

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

NVIDIA-NeMo/Gym#1505 · Opened Jun 2, 2026
Bug: Malformed +config_paths surfaces raw Pydantic ValidationError stack Open

CLI usability

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

NVIDIA-NeMo/Gym#1490 · Opened Jun 1, 2026
bug: ng_run with no config spawns Ray and hangs instead of failing fast Open

CLI Config usability

Difficulty 2/5 1-3 hours Newbie friendliness 82/100

NVIDIA-NeMo/Gym#1489 · Opened Jun 1, 2026
bug: nonexistent config path dumps raw FileNotFoundError traceback Open

CLI Config usability

Difficulty 2/5 Half a day Newbie friendliness 78/100

NVIDIA-NeMo/Gym#1488 · Opened Jun 1, 2026
docs: document how to upload and download datasets from GitLab Open

CLI data documentation

Difficulty 2/5 1-3 hours Newbie friendliness 74/100

NVIDIA-NeMo/Gym#1346 · Opened May 16, 2026
NeMo-RL Gym sanity tests silently deselected (missing --nemo-gym-only) Open

Difficulty 2/5 1-3 hours Newbie friendliness 65/100

NVIDIA-NeMo/Gym#1175 · Opened Apr 29, 2026
Stale To-Do in vLLM/app.py for supporting prompt + generation token IDs Open

models

Difficulty 2/5 1-3 hours Newbie friendliness 65/100

NVIDIA-NeMo/Gym#1108 · Opened Apr 22, 2026
bug: vllm model crashes on requests with metadata null Open

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

NVIDIA-NeMo/Gym#1096 · Opened Apr 17, 2026
Use the term "verification logic" consistently instead "verifiers" Open

documentation usability

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

NVIDIA-NeMo/Gym#387 · Opened Nov 24, 2025
Improve troubleshooting guidance for port conflicts Open

CLI core-infra documentation usability

Difficulty 2/5 1-3 hours Newbie friendliness 65/100

NVIDIA-NeMo/Gym#271 · 2 comments · Opened Nov 4, 2025

NVIDIA-NeMo/Gym

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