Use GLM-5.3 in Cline: setup and pricing

Use the OpenAI Compatible provider to run GLM-5.3 (glm-5.3) in Cline. $0.20 input / $0.64 output per 1M tokens, with a config you can paste.

Create an API keyFull Cline guide
Model ID
glm-5.3
Input / 1M
$0.20
Output / 1M
$0.64
Context
1M

Set up Cline with GLM-5.3

  1. Create an API key in the BigModel.io console and give it a spend limit; agents send long contexts.
  2. In Cline's settings, choose the OpenAI Compatible provider and fill in the fields below.
  3. Send a short task. Requests appear in Usage with the model glm-5.3.
API Provider: OpenAI Compatible
Base URL:     https://bigmodel.io/v1
API Key:      sk-your-bigmodel-key
Model ID:     glm-5.3

Check the key and model first

This request should return a short reply. If it fails, the tool will fail the same way.

curl https://bigmodel.io/v1/chat/completions \
  -H "Authorization: Bearer $BIGMODEL_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"glm-5.3","messages":[{"role":"user","content":"ping"}]}'

401 means the key is wrong, 404 the model ID; fix 401 · fix 404

What it costs

GLM-5.3 costs $0.20 per 1M input tokens and $0.64 per 1M output tokens, $0.04 per 1M cached input tokens. A typical agent turn with 20K tokens in and 2K out costs about $0.0053; 100 turns about $0.528. GLM-5.3 pricing →

Other setups