All models
- Model ID
- glm-5.3
- Context
- 1M
- Provider
- Z.ai
- Input · USD / 1M tokens
- $0.7 USD
- Official price $1.4 USD
- Output · USD / 1M tokens
- $2.2 USD
- Official price $4.4 USD
- Savings
- 50%
- Last verified
- 2026-08-20
01
Where it fits
Choose GLM-5.3 when you want Z.ai's newer long-horizon coding behavior without changing the current GLM token budget.
02
Model capabilities
Tool use
Can select and call tools in agent workflows that support structured tool use.
03
OpenAI-compatible API
Keep your client and change the base URL, API key, and model ID.
curl
curl https://api.omniakey.com/v1/chat/completions \
-H "Authorization: Bearer $OMNIAKEY_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "glm-5.3",
"messages": [{"role": "user", "content": "Explain this codebase"}],
"stream": true
}'04
Compatible coding tools
Claude Code
Codex
Cursor
Cline
Aider
More Z.ai models
Frequently asked questions
How much does GLM-5.3 cost on OmniaKey?
OmniaKey charges $0.7 USD per 1M input tokens and $2.2 USD per 1M output tokens, in USD. Official prices are $1.4 USD and $4.4 USD; you save 50%.
What is the context window for GLM-5.3?
The listed context window is 1M. Actual usable limits can also depend on the client and upstream request format.
Which coding tools work with GLM-5.3?
The current catalog lists compatibility with Claude Code, Codex, Cursor, Cline, Aider. Use the model ID shown on this page when the client supports model selection.