license, datasets, language, base_model, pipeline_tag, library_name, tags

license	datasets	language	base_model	pipeline_tag	library_name	tags
mit	K-and-K/knights-and-knaves	en	Xkev/gemma-3-1b-it-kk	text-generation	transformers	knights-and-knaves gemma3 rl

Gemma-3-1B-IT — Knights-and-Knaves BES

Paper Link: https://arxiv.org/abs/2605.28814

Post-trained model on top of Xkev/gemma-3-1b-it-kk using Bidirectional Evolutionary Search (BES) on the Knights-and-Knaves (K&K) logic-puzzle dataset.

For the SFT cold-start this was initialized from, see Xkev/gemma-3-1b-it-kk.

Training

• Base model: Xkev/gemma-3-1b-it-kk
• Dataset: K&K 5k train split
• Framework: verl main_ppo with a bidirectional goal-tree search agent loop
• Search: budget=200 rollouts, decompose interval=10, backward model google/gemma-3-1b-it
• Hyperparameters: lr=1e-6, batch=32, ppo_epochs=1, clip_ratio=0.2, grad_clip=0.3, kl_coef=0, dtype=bf16

Intended use

Research on logical reasoning and post-training. Not intended for general dialog or production.

License

MIT. Base model google/gemma-3-1b-it is governed by Google's Gemma Terms of Use, which still apply transitively to this model.