Overview

Ollama v0.18.3-rc2 is now available as a release candidate, introducing a fix for improved compatibility with GitHub Copilot Chat's built-in Ollama integration.

What Changed

The update modifies how the /api/show endpoint handles model name responses:

• Previous behavior: Returned general.basename for model identification
• New behavior: Returns req.Model instead, which matches the value provided by /api/tags

Why This Matters

Copilot Chat's Ollama integration prefers using general.basename internally, but this name often isn't displayed directly to users and multiple models may share the same basename. By returning req.Model, the API now provides the actual model identifier that users interact with, ensuring better alignment between what Copilot Chat expects and what Ollama serves.

For Developers

If you're integrating with Ollama's API or relying on the /api/show endpoint behavior, verify that your code properly handles the updated response format. This is a release candidate, so testing is encouraged before the stable release.

This is version v0.18.3-rc2, commit 26b9f53, verified on March 25, 2026.