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glm-5.3-flash: Responses
Z.ai’s GLM-5.3-Flash is an efficient open-weight model for coding and long-horizon agent tasks, served on ZeroGPU for general text generation. Its hybrid sparse and linear attention keeps long-context behaviour accurate across a 1,048,576-token (1M) window while reducing compute, and it supports function calling and adjustable reasoning effort.
References: Model docsTermsPrivacy

Authorizations

x-api-key
string
header
required

Headers

x-project-id
string

Optional project identifier. Scopes the request to a specific project when provided.

Body

application/json
model
string
default:glm-5.3-flash
required

Model identifier (fixed for this playground). Use request examples to change use cases.

Allowed value: "glm-5.3-flash"
Example:

"glm-5.3-flash"

input
string<textarea>
required

Multi-line text or document content to send to the model.

Required string length: 1 - 131072
instructions
string
max_tokens
integer

Maximum number of tokens to generate in the response.

Required range: x >= 1
Example:

800

metadata
object

Response

Success

The response is of type object.