Prime IntellectPrime RL research models

Qwen3-4B-Instruct-AlphabetSort-RL

Prime publishes this trained checkpoint as part of its alphabet-sort reinforcement-learning example.

Research release

What the release provides

The released weight files are available from Prime's official organization. The associated training recipe explains the task and model lineage.Qwen3-4B-Instruct-AlphabetSort-RL official model card

How to use it well

Practical guidance. For real record sorting, use deterministic sorting code. This model is useful for studying how a language model learns state changes and follows feedback across turns.

The task requires more than a single sorted list

The example starts from Qwen3-4B-Instruct-2507 and uses LoRA reinforcement learning without supervised warmup. The model must sort by first or last name, keep a cumulative list, and mark newly added names.Prime RL alphabet-sort training example

Specifications & access

Qwen3-4B-Instruct-AlphabetSort-RL specifications
DetailValue and conditions
StatusResearch release
AccessDownloadable
Base modelQwen3-4B-Instruct-2507Prime RL alphabet-sort training example