This repository contains the official trained policies for The files are organized by task environment and training seed: The play.py script in the JoSE repository downloads a pretrained model and executes it in the corresponding environment, allowing agent behaviour to be visualized. The script is called from the repo root as follows: Seeds vary by hand and task. See the HuggingFace model directory to see which seeds are available for each task-hand combination.
Open-weight model · Reinforcement learning
tandem-rlvr
by Tandem RLVR collaboration cge7-tandem-rlvr/tandem-rlvr
tandem-rlvr is an open-weight model for reinforcement learning from Tandem RLVR collaboration. Its published files total 139.7 GB.
Solo GRPO and Tandem RLVR policies from three single-seed experiments. Each Tandem policy is the trained senior; its frozen junior is not included. The reproduction checkpoints are selected by validation pass@4; the others are final step-200 checkpoints.
Model Card
Solo GRPO and Tandem RLVR policies from three single-seed experiments. Each Tandem policy is the trained senior; its frozen junior is not included. The reproduction checkpoints are selected by validation pass@4; the others are final step-200 checkpoints. Validation uses each arm's own rollout protocol, so GRPO and Tandem scores are not directly comparable. Base revisions, selection evidence and SHA-256 hashes are in checkpointmanifest.json. The Qwen3.5 checkpoints keep the Qwen35ForConditionalGeneration architecture (text-only training) and are stored in FP32; dtype="auto" loads BF16.
Excerpt from the card by Tandem RLVR collaboration.
Identity and Version
- Repository
- cge7-tandem-rlvr/tandem-rlvr
- Publisher
- Tandem RLVR collaboration
- Task
- Reinforcement learning
- Modality
- Control
- Library
- transformers
- Parameters
- Not stated by the source
- Languages
- Not stated by the source
- Revision
- e20a1935893c1fba35bdf50345c2a9c9cf79bf47
- First published
- 2026-10-10
- Last updated
- 2026-10-14
Files and Weights
41 files, 139.7 GB in total. The weights are 6 files totalling 139.6 GB in safetensors.
Every file
| File | Type | Size | SHA-256 |
|---|---|---|---|
| apps/grpo/model.safetensors | Weights | 16.1 GB | 11252aa4c693 |
| apps/tandem/model.safetensors | Weights | 16.1 GB | 2cbf6d46ef51 |
| grpo/model.safetensors | Weights | 16.1 GB | 9114e173ae82 |
| qwen35-9b-2b/grpo/model.safetensors | Weights | 37.6 GB | 6e92c65387df |
| qwen35-9b-2b/tandem/model.safetensors | Weights | 37.6 GB | 5e59679cdedc |
| tandem/model.safetensors | Weights | 16.1 GB | 7a06e27ddd6d |
| apps/grpo/config.json | Configuration | 1.6 KB | — |
| apps/grpo/generation_config.json | Configuration | 212 B | — |
| apps/tandem/config.json | Configuration | 1.6 KB | — |
| apps/tandem/generation_config.json | Configuration | 212 B | — |
| checkpoint_manifest.json | Configuration | 9.6 KB | — |
| grpo/config.json | Configuration | 1.6 KB | — |
| grpo/generation_config.json | Configuration | 212 B | — |
| qwen35-9b-2b/grpo/config.json | Configuration | 2.9 KB | — |
| qwen35-9b-2b/grpo/generation_config.json | Configuration | 204 B | — |
| qwen35-9b-2b/grpo/processor_config.json | Configuration | 1.2 KB | — |
| qwen35-9b-2b/tandem/config.json | Configuration | 2.9 KB | — |
| qwen35-9b-2b/tandem/generation_config.json | Configuration | 204 B | — |
| qwen35-9b-2b/tandem/processor_config.json | Configuration | 1.2 KB | — |
| tandem/config.json | Configuration | 1.6 KB | — |
| tandem/generation_config.json | Configuration | 212 B | — |
| README.md | Documentation | 1.8 KB | — |
| apps/grpo/chat_template.jinja | Other | 2.6 KB | — |
| apps/tandem/chat_template.jinja | Other | 2.6 KB | — |
| grpo/chat_template.jinja | Other | 2.6 KB | — |
| qwen35-9b-2b/grpo/chat_template.jinja | Other | 7.8 KB | — |
| qwen35-9b-2b/tandem/chat_template.jinja | Other | 7.8 KB | — |
| tandem/chat_template.jinja | Other | 2.6 KB | — |
| .gitattributes | Repository | 1.9 KB | — |
| apps/grpo/tokenizer.json | Tokenizer | 11.4 MB | be75606093db |
| apps/grpo/tokenizer_config.json | Tokenizer | 665 B | — |
| apps/tandem/tokenizer.json | Tokenizer | 11.4 MB | be75606093db |
| apps/tandem/tokenizer_config.json | Tokenizer | 665 B | — |
| grpo/tokenizer.json | Tokenizer | 11.4 MB | be75606093db |
| grpo/tokenizer_config.json | Tokenizer | 665 B | — |
| qwen35-9b-2b/grpo/tokenizer.json | Tokenizer | 20.0 MB | 87a7830d63fc |
| qwen35-9b-2b/grpo/tokenizer_config.json | Tokenizer | 1.1 KB | — |
| qwen35-9b-2b/tandem/tokenizer.json | Tokenizer | 20.0 MB | 87a7830d63fc |
| qwen35-9b-2b/tandem/tokenizer_config.json | Tokenizer | 1.1 KB | — |
| tandem/tokenizer.json | Tokenizer | 11.4 MB | be75606093db |
| tandem/tokenizer_config.json | Tokenizer | 665 B | — |
License and Download
- License
- Not stated by the source
- Access
- Open weights, no gate
- Download size
- 139.6 GB
Released by Tandem RLVR collaboration through its official repository on Hugging Face.
Built From
- Derived from Qwen/Qwen3-4B-Instruct-2507
Memory Requirements
| Precision | Weights in memory |
|---|---|
| As published | 139.6 GB |
Weights only, from the published parameter count; the key-value cache and runtime add to this.
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