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Qwen3.5-4B-Jev-Judge
Hugging Face model repository for Qwen3.5-4B-Jev-Judge, a 4B Qwen3.5 checkpoint tuned as a judge for Jev decisions. It ships the tokenizer configuration and chat template needed to prompt the model.
- Reading time
- 2 min
- Published by
- Community
- Added
- Oct 2026
Highlights
- A 4B Qwen3.5-based checkpoint published on Hugging Face as a Jev judge model.
- Tokenizer configuration defines a vision pad token and sets unk_token to null.
- Chat template merges up to two leading system or developer messages into one system block.
- Template renders tool calls as XML <tool_call> blocks with nested parameters.
- Assistant reasoning is wrapped in <think> tags when preserved.
Questions about this entry
Short answers drawn from the linked project or page.
It is a Hugging Face model repository under the nurdich account holding a 4B Qwen3.5 checkpoint positioned as a judge model for Jev decisions, together with its tokenizer configuration and chat template.
You need a runtime that supports the Qwen3.5 architecture and can load a 4B-parameter checkpoint. The repository supplies the tokenizer configuration and chat template, so no separate prompt formatting is required.
Yes. Tools are listed in a <tools> block and calls must follow the <tool_call> XML format with a nested <function=...> block and <parameter=...> entries; the template also handles multi-step tool responses.
If the first message is a system or developer message, it is rendered as the system block. When the second message is also a system or developer message, the two are merged into a single system block.
The tokenizer configuration defines a vision pad token and the chat template has branches for image and video content items. System messages containing images or videos raise an exception rather than rendering.
The provided metadata does not state a license. Check the repository page on Hugging Face for the license terms and any restrictions before redistributing or deploying the checkpoint.
If you need the full JEV System One decision model rather than a small judge checkpoint, or your hardware cannot run a 4B model locally, choose a different resource.
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