---
base_model:
- Qwen/Qwen3.5-4B
tags:
- llamafile
- qwen3_5
- image-text-to-text
- conversational
- text-generation-inference
notes:
- llamafile-0.10.0
- based on GGUF format quantizations by unsloth
---

## About

 * ***Update(1)*** `2026-04-24`: apparently, VirusTotal does not like the llamafiles and marks them "suspicious". There's not much I can do there, I guess. Let us wait untill the other scanners try it; until then -- feel free to e.g. ClamAV scan them after download, but also feel free to redo it yourself following the links provided: your result will be binary compatible with what is uploaded here.
 * ***Update(2)*** `2026-04-24`: hmm, the "suspicious" flag seems to be cleared on some binaries. Good. May be just give it time to update the databases.
 * ***Update(3)*** `2026-04-24`: Ok, I uploaded some components under [test/]([./test](https://huggingface.co/thread13/Qwen3.5-4B-llamafile/tree/main/test)) -- let us see the scan verdict on these. Also, I discovered that VirusTotal gives a very clear false positive on `zipalign-0.10.0`, which is uploaded at [virustotal.false_alarm/](https://huggingface.co/thread13/Qwen3.5-4B-llamafile/tree/main/virustotal.false_alarm). Needless to say, all the executables are coming from Mozilla' GitHub repository [Releases](https://github.com/mozilla-ai/llamafile/releases/) page, and are exactly the same -- see [virustotal.false_alarm/README.md](https://huggingface.co/thread13/Qwen3.5-4B-llamafile/blob/main/virustotal.false_alarm/README.md)
   * Also, apparently only <u>one</u> of all those 75 engines (named "SecureAge") marks this binary as "malicious", and its comment says _"Acronis (Static ML)"_ -- whatever that means. Well, the binary _does_ have an embedded LLM (which is like the whole point here), so may be this is what causes this misunderstanding.

A [llamafile](https://github.com/mozilla-ai/llamafile/blob/main/docs/quickstart.md) is a universal ([APE](https://justine.lol/ape.html)) single-file executable, 
which is based on [llama.cpp](https://github.com/ggml-org/llama.cpp/releases)-built binaries. It contains an embedded LLM model and can provide a console and/or a web interface to chat with it.

 * "and/or" here has a literal meaning -- one can _either_ run a console chat (`--chat`), or a web server (`--server`), or -- by default -- both. 
 * NB(1): by default the web server attempts to listen on _all_ available interfaces -- run it as `--host 127.0.0.1` to make it private to your system only!
 * NB(2): there's also a cli completion interface (`--cli`), if you wish -- [check the docs!](https://mozilla-ai.github.io/llamafile/)

## How to use:
* https://github.com/mozilla-ai/llamafile/blob/main/docs/running_llamafile.md
* https://github.com/mozilla-ai/llamafile/blob/main/docs/quickstart.md

## Building references:
 * https://github.com/mozilla-ai/llamafile/blob/main/docs/creating_llamafiles.md
 * https://huggingface.co/unsloth/Qwen3.5-4B-GGUF/blob/main/mmproj-BF16.gguf
 * https://huggingface.co/unsloth/Qwen3.5-4B-GGUF/blob/main/Qwen3.5-4B-UD-Q4_K_XL.gguf
 * https://huggingface.co/unsloth/Qwen3.5-4B-GGUF/blob/main/Qwen3.5-4B-IQ4_XS.gguf

## Default arguments:
 * https://unsloth.ai/docs/models/qwen3.5
```
temperature=0.6, top_p=0.95, top_k=20, min_p=0.0, presence_penalty=0.0, repetition_penalty=1.0

// recommended (unsloth) for coding in thinking mode:
--ctx-size 16384 --temp 0.6 --top-p 0.95  --top-k 20  --min-p 0.00 \
    --chat-template-kwargs '{"enable_thinking":true}'

// recommended (unsloth) for reasoning tasks:
--ctx-size 16384 --temp 1.0  --top-p 0.95 --top-k 20  --min-p 0.00 \
```

### To enable "thinking mode" (slower but better results):
 * https://unsloth.ai/docs/models/qwen3.5#how-to-enable-or-disable-reasoning-and-thinking
```
--chat-template-kwargs '{"enable_thinking":true}'
```

### Extra recommendations -- try the following if generation falls into an endless loop:
 * https://unsloth.ai/docs/models/qwen3.5 (same source)

```
presence_penalty = 0.0 to 2.0
```

## Quirks:
 * https://github.com/mozilla-ai/llamafile/issues/373
 * https://github.com/mozilla-ai/llamafile/tree/0.9.0?tab=readme-ov-file#gotchas-and-troubleshooting

For some quirks and workarounds (like how to make this run on WSL), see the second link above;
in particular, if you are seeing a message like this:
```
Cannot open assembly '...': File does not contain a valid CIL image.
```

The reason might be that you have wine installed and it tries to run the executable (and fails).
There are workarounds available -- see above; if that does not work, please open an issue, 
and when I see it (which might not happen immediately), we will think of something.