Hugging Face Trained a Coding Model to Paint Watercolours Using TRL and OpenEnv
Hugging Face Blog·medium signal
A Hugging Face engineering post walks through training a code-generating model to produce watercolour paintings as executable code, using TRL for the RL loop and OpenEnv for the environment. The useful part for builders is not the paintings, it is the worked example of wiring a non-text reward signal into TRL through OpenEnv, which is the awkward step in most custom RL setups. It is one of the few end-to-end public recipes for a reward function that is neither a benchmark score nor a preference model.