ollama - 💡(How to fix) Fix macOS Apple Silicon: x/z-image-turbo fails because libmlxc.dylib in Ollama.app is x86_64

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Root Cause

Server log shows Ollama starting an MLX image runner for x/z-image-turbo, then failing to initialize MLX because libmlxc.dylib is the wrong architecture.

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What is the issue?

I’m on an Apple Silicon Mac and ollama run x/z-image-turbo fails immediately.

This worked for me on February 26, 2026. Just in case it would help, I reinstalled Ollama, but the issue is still happening.

What I see:

  • uname -m -> arm64
  • file /Applications/Ollama.app/Contents/Resources/libmlxc.dylib -> Mach-O 64-bit dynamically linked shared library x86_64
  • file /Applications/Ollama.app/Contents/MacOS/Ollama -> universal binary with x86_64 and arm64

Server log shows Ollama starting an MLX image runner for x/z-image-turbo, then failing to initialize MLX because libmlxc.dylib is the wrong architecture.

Please let me know if there are any other details that I can provide that would help isolate the issue.

OS

macOS 26.4

CPU

M4 Pro

Ollama version

0.20.4

extent analysis

TL;DR

The issue is likely due to the libmlxc.dylib being the wrong architecture for the Apple Silicon Mac, and a potential fix is to ensure that the dynamically linked shared library is compatible with the arm64 architecture.

Guidance

  • The error message indicates that libmlxc.dylib is an x86_64 dynamically linked shared library, which is incompatible with the arm64 architecture of the Apple Silicon Mac.
  • To verify the issue, check the architecture of the libmlxc.dylib file using the file command, as already done in the issue description.
  • The Ollama application itself is a universal binary with both x86_64 and arm64 architectures, but the libmlxc.dylib file is not.
  • To mitigate the issue, consider reaching out to the Ollama developers to request a version of libmlxc.dylib that is compatible with the arm64 architecture.

Example

No code snippet is provided as it is not clearly supported by the issue.

Notes

The issue is specific to the Apple Silicon Mac and the arm64 architecture, and may not apply to other platforms or architectures.

Recommendation

Apply workaround: Reach out to the Ollama developers to request a compatible version of libmlxc.dylib, as the current version is not compatible with the arm64 architecture of the Apple Silicon Mac.

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