Z.ai (GLM) · Model
GLM-5.3 API
GLM-5.3 answers at api.apmix.ai under the id below — one key and one monthly plan, on the OpenAI and Anthropic wire formats your tools already speak. No separate Z.ai (GLM) account, no per-provider bill.
Model id
zai/glm-5.3ProMaxAt a glance
- Provider
- Z.ai (GLM)
- Included in
- Pro, Max — from $14.99/month
- Weighted-token cost
- 1.5× — a 1,000-token exchange costs 1.5K weighted tokens
- Context window
- 1M tokens
- Free trial
- Paid plans only — the free models are the place to start
Call GLM-5.3
Set the model to glm-5.3 in any OpenAI- or Anthropic-compatible client. Both base URLs accept the same apmix key.
OpenAI-compatible · Chat Completions
curl https://api.apmix.ai/v1/chat/completions \
-H "Authorization: Bearer apx_live_YOUR_KEY" \
-H "Content-Type: application/json" \
-d '{"model": "glm-5.3", "messages": [{"role": "user", "content": "Hello"}]}'Anthropic-compatible · Messages
curl https://api.apmix.ai/v1/messages \
-H "x-api-key: apx_live_YOUR_KEY" \
-H "anthropic-version: 2023-06-01" \
-H "Content-Type: application/json" \
-d '{"model": "glm-5.3", "max_tokens": 1024, "messages": [{"role": "user", "content": "Hello"}]}'Questions about GLM-5.3
- Is GLM-5.3 free on apmix?
- Not on the free trial. GLM-5.3 is included from the Pro plan ($14.99/month), which covers every model in the catalog with one monthly allowance. You can still start free on the free Claude models.
- Which plan includes GLM-5.3?
- Pro, Max. Each plan is a monthly allowance of weighted tokens shared across every model and every key; GLM-5.3 counts at 1.5× per token.
- How do I use GLM-5.3 in Claude Code, Codex CLI or Cursor?
- Point the tool at apmix — https://api.apmix.ai/v1 for OpenAI-compatible clients, https://api.apmix.ai for Anthropic-compatible ones — with your apmix key, and set the model to glm-5.3. The Docs page has copy-paste setup for each tool.