Z.AI (GLM)

Z.AI (GLM)

Z.AI’s GLM models are available in Ptah as a ptah-cli provider — an Anthropic-compatible API provider that joins the CLI agent pool alongside Codex and Copilot. The flagship coding model is glm-5.2, with a 1M-token context window.

Models

Model	Context	Pricing (per 1M tokens)	Notes
glm-5.2	1M	~$1.40 in / $4.40 out	Opus-tier. Strongest open-source coding model.

glm-5.2 is the opus-tier model for the Z.AI family — it’s what Ptah selects when a high-capability Z.AI agent is requested (including when Z.AI joins a Tribunal panel).

Note

Pricing figures are approximate and subject to change. Check the Z.AI platform for current rates.

What you need

• A Z.AI account and API key from z.ai.
• The Ptah Electron desktop app, or ptah-cli for headless use.

Configuration

Add Z.AI from Settings → Providers → Ptah CLI in the app:

1. Add a new Ptah CLI provider and choose Z.AI as the provider.
2. Paste your Z.AI API key. The key is stored in encrypted safeStorage — never in plaintext.
3. Save. Z.AI now appears in the model selector and the CLI agent pool.

Ptah registers Z.AI as an Anthropic-compatible provider and maps its capability tiers to concrete models automatically. Non-secret tier mappings live in ~/.ptah/settings.json:

{
  "provider.z-ai.modelTier.opus": "glm-5.2",
  "provider.z-ai.modelTier.sonnet": "glm-5.1",
  "provider.z-ai.modelTier.haiku": "glm-4.7-flashx"
}

Set any tier to null to fall back to Ptah’s default for that tier.

Long-context capabilities

glm-5.2’s 1M-token context window suits tasks that reason over large codebases, long session histories, or extensive reference material in one pass. Ptah passes the active context to GLM automatically — no special configuration needed to use the extended window.

Tip

For Tribunal Council sessions with long prior context, routing through Z.AI can be advantageous — the 1M window means GLM sees everything the other vendors see, even in deeply nested debates.

Verifying it works

1. Open the chat and select your Z.AI agent from the model selector.
2. Send a coding prompt: Write a Go function that parses a nested JSON structure into a typed struct.
3. You should see a streaming response, attributed to the Z.AI ptah-cli provider in the Execution Tree.

Tribunal panel participation

When Tribunal assembles a panel, Z.AI joins as the GLM vendor family if its ptah-cli agent is enabled — contributing a GLM answer and critique to each Council, a worktree implementation in Forge, and an attempt in Race. To drop Z.AI from the panel, disable or remove its agent in Settings → Providers.

Troubleshooting

• Agent not listed in the selector — confirm the Z.AI provider is enabled in Settings, then restart Ptah.
• Authentication error — the API key is wrong or expired. Re-enter it in Settings → Providers → Ptah CLI.
• Model unavailable — your Z.AI account may not have access to glm-5.2. Check model availability in the Z.AI console.
• Context length errors — if you hit the 1M-token limit, shorten the conversation history or run /compact before continuing.