PROMPT YOUR IA EXAMPLE CLAUDE OR CHATGPT"

"I found this trick on Reddit to enable Gemma 4 support in LM Studio by commenting out a check in the source code. Here's the original command:

WARNING:It may come with risks, but in my experience it works perfectly on my M4 PRO.

If you're getting this error when loading Gemma 4 with MLX in LM Studio:

 Failed to load the model
ValueError: Gemma 4 support is not ready yet, stay tuned!

Turns out the support is already fully bundled  mlx-vlm 0.4.3, mlx-lm 0.31.2, the gemma4 model module, everything. LM Studio's mlx-engine even has the code to handle gemma4. But there's a manual block in generate.py that raises a ValueError before it even tries to load.

1. Backup

Update LM studio to the latest version before starting and everything related

cp -r ~/.lmstudio/extensions/backends/vendor/_amphibian/app-mlx-generate-mac14-arm64@21 ~/.lmstudio/extensions/backends/vendor/_amphibian/app-mlx-generate-mac14-arm64@21_backup

1. Comment out the block

   sed -i '' 's/ if model_type == "gemma4":/ #if model_type == "gemma4":/' ~/.lmstudio/extensions/backends/vendor/_amphibian/app-mlx-generate-mac14-arm64@21/lib/python3.11/site-packages/mlx_engine/generate.py

   sed -i '' 's/ raise ValueError("Gemma 4 support is not ready yet, stay tuned!")/ #raise ValueError("Gemma 4 support is not ready yet, stay tuned!")/' ~/.lmstudio/extensions/backends/vendor/_amphibian/app-mlx-generate-mac14-arm64@21/lib/python3.11/site-packages/mlx_engine/generate.py

2. Clear the Python cache

   rm ~/.lmstudio/extensions/backends/vendor/_amphibian/app-mlx-generate-mac14-arm64@21/lib/python3.11/site-packages/mlx_engine/pycache/generate.cpython-311.pyc

3. Quit LM Studio (Cmd+Q) and relaunch

That's it. Gemma 4 loads and runs on MLX.

Tested on macOS 26.4.1 , Apple Silicon, LM Studio MLX v1.5.0.

The problem is the file path is hardcoded and probably won't match my setup. Can you help me make this work on my MacBook Pro?

Here's my setup:

• MacBook Pro with M5 Max chip
• macOS [votre version, ex: Sequoia 15.x]
• LM Studio [votre version]

Please:

1. Give me a command to find the correct file path on my machine first
2. Then adapt the commands to use that path
3. Add a way to verify it worked
4. Show me how to undo the changes if something breaks

if found it depends on the Mac and the location you should copy and paste the post and ask claude for help "can you make sure that work on my own MacBook Pro I found on reddit""

do you have copy and paste all the code in the terminal in order and restart the Mac and then retry