Add GLM 5

[Neonsy]

Context

This PR updates Z.ai support to make glm-5 the default model and keep model selection consistent across all Z.ai API lines (international_coding, international_api, china_coding, china_api) in the extension/webview flow.

Implementation

• Switched Z.ai default model IDs from glm-4.7 to glm-5 in the Z.ai provider model catalogs.
• Fixed mainland line handling so both china_coding and china_api resolve to the mainland model catalog in:
  • provider model resolution
  • webview model list hooks
  • selected-model resolution
  • settings default-model reset behavior
• Added/updated tests for:
  • GLM-5 selection on coding and non-coding Z.ai lines
  • china_api mapping to mainland defaults/model sets
  • settings behavior when provider/line changes
• Added a dedicated changeset for this work.

Where the values come from

• Primary source: official Z.ai GLM-5 docs (https://docs.z.ai/guides/llm/glm-5).
• Validation source: live /models and /chat/completions probes against Z.ai endpoints.
• OpenRouter model metadata was used only as a cross-check, not as the canonical source for Z.ai endpoint behavior.

How to Test

• Run provider tests:
  • cd src && pnpm exec vitest run api/providers/__tests__/zai.spec.ts
• Run webview tests:
  • cd webview-ui && pnpm exec vitest run src/components/kilocode/hooks/__tests__/getModelsByProvider.spec.ts
  • cd webview-ui && pnpm exec vitest run src/components/settings/__tests__/ApiOptions.spec.tsx
• Manual settings check:
  • Open settings, choose provider zai.
  • Set zaiApiLine to china_api.
  • Switch providers away/back if needed.
  • Confirm default model resolves from mainland Z.ai defaults and is now glm-5.
• Optional live sanity checks:
  • Verify glm-5 appears on Z.ai /models responses for each supported line.
  • Verify glm-5 chat completion succeeds on coding lines (non-coding line behavior may depend on account/package state).

Note

I did not test if the provider works myself

[changeset-bot]

🦋 Changeset detected

Latest commit: 117481d

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
kilo-code	Patch

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[Neonsy]

@mikij @bernaferrari @kevinvandijk

[Neonsy]

Why are the workflows waiting for approval 👀

[bernaferrari]

Works well. I tested here. The only possible problem is that GLM 5 is still not available for non-max plans, but will be next week. So I guess can leave it default. People with API key know what they are doing.

[kevinvandijk]

Thanks @Neonsy! I made a slight update to the changeset note but everthing else looks good!