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Qwen3.5-4B-Thinking-Preservation
eewer/Qwen3.5-4B-Thinking-Preservation
Qwen3.5-4B-Thinking-Preservation is a image-text-to-text model from eewer. Use it for the image-text-to-text task on the model card, and read the license before you ship it in a product. It is set up for transformers. The card lists the license as apache-2.0.
Derived from Qwen/Qwen3.5-4B with a single change to the chat template:
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From the Hugging Face model README
Qwen3.5-4B-Thinking-Preservation
Derived from Qwen/Qwen3.5-4B with a single change to the chat template:
- Thinking is always preserved across multi-turn history (append-only). Every
assistant turn keeps its
<think>...</think>reasoning, not just the latest one. - No enable/disable toggle. The generation prompt always opens
<think>; passingenable_thinking=Falsehas no effect.
This makes multi-turn agent training match evaluation (the model always sees its own prior reasoning). Model weights are identical to Qwen3.5-4B; only the chat template differs. Vision weights are unchanged (not trained in the terminal-agent recipes).
- Task
- Image-Text-to-Text
- Library
- transformers
- Type
- qwen3_5
- License
- apache-2.0
- Created
- Jun 23, 2026
- Updated
- Jun 23, 2026