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Z.AI provides the GLM model family — strong, cost-effective models with first-class tool calling and prompt caching. Rumus has a dedicated provider so you can use both the general endpoint and the Coding-specialized one.

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Before you start

You need:
  • A Z.AI account at z.ai (or the international portal).
  • An API key from your Z.AI dashboard.
  • Sufficient credit on the Z.AI account.

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Add Z.AI in Rumus

1

Open the model settings

Go to Settings → AI → Models and click Add Model.
2

Pick the provider

Set Provider to Z.AI.
3

Paste your API key

Paste the key into API Key. Stored encrypted in your local vault.
4

(Optional) Custom base URL

Two endpoints are common:
  • General: https://api.z.ai/api/paas/v4 (default — leave blank).
  • Coding: https://api.z.ai/api/coding/paas/v4 — better routing for code-heavy workloads.
Paste the Coding URL into Base URL if you want that variant.
5

Pick a model

Choose from the list (GLM-4.7, GLM-4.6, GLM-4.5, GLM-4.5 Air, GLM-4.5 Flash, etc.) or toggle Enter custom ID to type a model ID manually.
6

Capabilities

On the Capabilities tab:
  • Tool Calling — supported on GLM-4.5+ and 4.7.
  • Vision — supported on multimodal GLM versions.
  • Prompt Cache — supported on GLM-4.7; cache reads are ~50% of input price.
7

Save

The model appears in the picker under Custom Models.
For the latest model details and limits, see the Z.AI documentation.

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Tips

  • The default temperature/top_p for Z.AI (0.7 / 0.9) differs from OpenAI’s defaults. Rumus respects whatever you set per thread.
  • Coding endpoint vs general: if you’re mostly using the agent for code tasks, configure the Coding endpoint — routing and rate limits are tuned for it.
  • Prompt cache kicks in automatically on supported models. Long, stable system prompts (skills, rules, long file context) benefit the most.

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Troubleshooting

Recheck the API key. Note that Z.AI keys are not interchangeable between the China portal and the international portal.
Streaming first-token latency varies by region. If you’re far from the endpoint, switch to a closer region (Z.AI publishes regional URLs).
Toggle Enter custom ID and paste the exact model ID (e.g. glm-4.7).
Hit a snag we didn’t cover? Ask in the Rumus community.

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Next steps

Other providers

Anthropic, OpenAI, Google, DeepSeek, Kimi, Ollama, OpenAI-compatible.

Built-in models

Use Rumus’s bundled GLM-4.7 without managing a key yourself.