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glm-5.3-flashx

Input price
$0.37/1M tokens
Output price
$1.25/1M tokens
Context window
1M
Modalities
Text → Text
Get an API key

Pricing

API call price

Input

$0.37

Output

$1.25

Cache write

$0.00

Cache read

$0.75

All prices are per million tokens and already include the discount shown above.

These public prices exclude group discounts. Your billed price may be lower based on your group.

Integration & capabilities

Supported protocols

Messages API
Compatible formatAnthropic
Routes
POST /v1/messages
POST /v1/messages/count_tokens
FeaturesStreaming · Prompt caching · Function calling · System messages
Request parametersmodel, messages, system, tools, stream, metadata

cURL Example

curl -X POST https://api.openmodel.ai/v1/messages \
  -H "Content-Type: application/json" \
  -H "x-api-key: $API_KEY" \
  -H "anthropic-version: 2023-06-01" \
  -d '{
    "model": "glm-5.3-flashx",
    "max_tokens": 1024,
    "messages": [
      {"role": "user", "content": "Hello"}
    ]
  }'

Supported capabilities

Function Calling
Function calling (also known as tool calling) provides a powerful and flexible way for models to interface with external systems and access data outside their training data.
Tool Choice
By default the model will determine when and how many tools to use. You can force specific behavior with the tool_choice parameter.
Reasoning
Reasoning models use internal reasoning tokens before producing a response.

Context & limits

Context window

1M

Max output tokens

128K

Get an API keyBack to catalog