GLM 5.3 - Corvex Token Factory

GLM 5.3 is Z.AI’s open-weight model for text, code, reasoning, and tool use. Token Factory serves it with a 393,216-token context window. Model ID: zai-org/GLM-5.3

Specifications

Context window: 393,216 tokens (384K)
Maximum output: 393,216 tokens, subject to the remaining context space
Input: text
Output: text
Capabilities: chat, reasoning, coding, tool use, JSON mode, structured output
Sampling parameters: temperature, top_p, stop, max_tokens
License identifier: glm-5.3
Model repository: zai-org/GLM-5.3

Input and reserved output share the context window: input_tokens + max_tokens must fit within 393,216 tokens. Image input is not supported.

Pricing

Direction	Rate (USD)
Input	$1.40 / 1M tokens
Output	$4.40 / 1M tokens

During the free Alpha, the dashboard reports equivalent usage value but does not charge these rates. See Pricing.

Send a request

curl https://api.tokenfactory.corvex.cloud/v1/chat/completions \
  -H "Authorization: Bearer ${CORVEX_API_KEY}" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "zai-org/GLM-5.3",
    "messages": [
      {"role": "user", "content": "Refactor this Go function and explain each change."}
    ]
  }'

Set stream: true for streamed responses. See the API reference for request fields and the integration guides for SDKs and developer tools. Open GLM 5.3 in the Token Factory playground.