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Z.aiglm-5.3

GLM-5.3

A coding-first flagship with a million-token context.

GLM-5.3 is Z.ai's flagship coding model, with stronger agentic coding than GLM-5.2 and a million-token context for working across a whole repository.

  • Agentic coding
  • Long context
  • Balanced cost
Get your API keyCompare models

Model details

Context window
1M tokens
Max output
128K tokens
Input
Text
Output
Text
Capabilities
Reasoning, Tool calling, Streaming, JSON output
Interfaces
OpenAI-style Chat Completions, Anthropic-style Messages, OpenAI-style Responses

Pricing

Per 1M tokens. The Inferray price is what you are charged — no gateway fee is added on top of it.

GLM-5.3 pricing: the provider's list price and the Inferray price for each.
MetricList priceYou pay
Input$1.40$1.12
Cached input$0.26$0.21
Output$4.40$3.52

Why teams pick it

  • Coding-first flagship with strong agentic performance
  • 1M-token context for whole-repo work
  • Reasoning and tool calling included

Call GLM-5.3

GLM-5.3 answers on any of the APIs below — pick the one your code already speaks and just swap in your Inferray key.

/v1/chat/completionsOpenAI-style Chat Completions · openai SDK or plain HTTP
curl https://api.inferray.com/v1/chat/completions \
  -H "Authorization: Bearer inferray_..." \
  -H "Content-Type: application/json" \
  -d '{
    "model": "glm-5.3",
    "messages": [{"role": "user", "content": "ship it"}]
  }'
/v1/messagesAnthropic-style Messages · @anthropic-ai/sdk SDK or plain HTTP
curl https://api.inferray.com/v1/messages \
  -H "Authorization: Bearer inferray_..." \
  -H "Content-Type: application/json" \
  -d '{
    "model": "glm-5.3",
    "max_tokens": 1024,
    "messages": [{"role": "user", "content": "ship it"}]
  }'
/v1/responsesOpenAI-style Responses · openai SDK or plain HTTP
curl https://api.inferray.com/v1/responses \
  -H "Authorization: Bearer inferray_..." \
  -H "Content-Type: application/json" \
  -d '{
    "model": "glm-5.3",
    "input": "ship it"
  }'