AStar-Thought-V2-Qwen3.6-27B

AStar-Thought-Latent-Qwen3.5-0.8B-deepseek-v3.2-speciale-openr1-math-3k-filtered-v10-angle90-Qwen3.6-27B-v2.12-strc0.1

This model is a fine-tuned version of Qwen/Qwen3.6-27B for the A*-Thought-V2 framework, as described in the paper A*-Thought-V2: Efficient Latent Reasoning via Geometric Dynamics of LLM.

A*-Thought-V2 is an explicit-implicit interleaved efficient reasoning architecture guided by LLM dynamics. By interweaving implicit latent-space reasoning with explicit text, it performs lossless compression of the chain-of-thought: aligned reasoning steps remain explicit text, while deviating steps are compressed into continuous latent tokens.

Code for data compression, training, and evaluation is available at the AStar-Thought GitHub repository.

Training and evaluation data

Trained using the A*-Thought-V2 compression pipeline on the OpenR1-Math-3k dataset.

Training procedure

Training hyperparameters

The following hyperparameters were used during training:

• learning_rate: 1e-05
• train_batch_size: 1
• eval_batch_size: 8
• seed: 42
• distributed_type: multi-GPU
• num_devices: 8
• gradient_accumulation_steps: 8
• total_train_batch_size: 64
• total_eval_batch_size: 64
• optimizer: Use OptimizerNames.ADAMW_TORCH_FUSED with betas=(0.9,0.999) and epsilon=1e-08 and optimizer_args=No additional optimizer arguments
• lr_scheduler_type: cosine
• lr_scheduler_warmup_steps: 0.1
• num_epochs: 3.0

Training results

• Final training loss: 0.3388

Framework versions

• Transformers 5.2.0
• Pytorch 2.10.0+cu128
• Datasets 4.0.0
• Tokenizers 0.22.2