GLM 5.3 Flash

glm-5.3-flash

Use the GLM 5.3 Flash API for vision-language chat. Send text and supported images to get a text response on a vision-enabled route. Build assistants that interpret screenshots or answer questions about images. Compare the available provider routes, request examples, and usage prices on OpenAny.

Published price
From $0.099 / 1M tokens
Billing unit
/ 1M tokens
Context / Max output
— / —
Listed routes
2
Base URL
https://api.openany.si/v1
POST
/v1/chat/completions
Authentication
Authorization: Bearer $OPENANY_API_KEY

Provider

Published price $0.099 / 1M tokens

Request parameters

ParameterType / rangeDefault valueRequiredDescription
messagesarray—YesThe conversation messages
modelstring—YesThe model to use
frequency_penaltynumber · -2 ~ 20NoPenalty for repeated tokens
max_completion_tokensinteger · >= 1—NoMaximum visible completion tokens
max_tokensinteger · >= 1—NoMaximum completion tokens
ninteger · 1 ~ 1281NoNumber of choices to generate
presence_penaltynumber · -2 ~ 20NoPenalty for previously used tokens
response_formatobject—NoFormat constraint for the response
routeobject—NoOpenAny route configuration, including provider and other routing parameters
route_modestring—NoThe mode for routing the request
seedinteger—NoSeed for deterministic sampling
stopstring | array—NoSequences that stop generation
streambooleanfalseNoWhether to stream the response
temperaturenumber · 0 ~ 21NoSampling temperature
tool_choicestring | object · none | auto | required—NoTool selection policy: string modes none, auto, or required, or an object selecting a specific tool
toolsarray—NoTools available to the model
top_pnumber · 0 ~ 11NoNucleus sampling probability

Request example

curl 'https://api.openany.si/v1/chat/completions' \
  -H "Authorization: Bearer $OPENANY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "messages": [
    {
      "content": "Hello!",
      "role": "user"
    }
  ],
  "model": "glm-5.3-flash",
  "route_mode": "balanced",
  "frequency_penalty": 0,
  "n": 1,
  "presence_penalty": 0,
  "stream": false,
  "temperature": 1,
  "top_p": 1
}'

Response example

Configured response example · not a live result

JSON
{
  "id": "ec57729c-75ab-4d58-bb16-24305e482df7",
  "model": "glm-5.3",
  "usage": {
    "total_tokens": 263,
    "prompt_tokens": 13,
    "completion_tokens": 250,
    "prompt_tokens_details": {
      "cached_tokens": 0
    },
    "completion_tokens_details": {
      "reasoning_tokens": 213
    }
  },
  "object": "chat.completion",
  "choices": [
    {
      "index": 0,
      "message": {
        "role": "assistant",
        "content": "Hello! I'm your GLM model trained by Z.ai. How can I help you today? Feel free to ask any questions or share topics you'd like to discuss.",
        "reasoning_content": "Let me consider how to respond to this greeting effectively.\n\nThe user has initiated contact with a simple \"hello,\" which suggests they may be testing the waters or just starting the conversation. This calls for a warm and inviting response that encourages further interaction.\n\nI should acknowledge their greeting in a friendly way and make them feel welcome to share more about what they need help with. It would be good to keep the tone approachable and professional, while also being open to various types of questions they might have.\n\nSince they haven't specified any particular topic or question, I should keep my response flexible and inviting. Perhaps I could offer some guidance on what I can assist with, while leaving the door open for them to direct the conversation.\n\nThe response should be concise yet welcoming, making it easy for them to continue the dialogue if they wish. I want to strike a balance between being helpful and not overwhelming them with too much information.\n\nLet me craft a response that is warm, professional, and open-ended - something that makes them feel comfortable sharing more about what they're looking for."
      },
      "finish_reason": "stop"
    }
  ],
  "created": 1787113497,
  "openmodels_cost": 9944
}

Error handling

400Check the model ID and request fields.
429Retry with exponential backoff.
5xxRetry only temporary provider failures.

JSON Schema

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "model",
    "messages"
  ],
  "properties": {
    "n": {
      "type": "integer",
      "default": 1,
      "maximum": 128,
      "minimum": 1,
      "description": "Number of choices to generate"
    },
    "seed": {
      "type": "integer",
      "description": "Seed for deterministic sampling"
    },
    "stop": {
      "type": [
        "string",
        "array"
      ],
      "items": {
        "type": "string"
      },
      "description": "Sequences that stop generation"
    },
    "model": {
      "type": "string",
      "description": "The model to use"
    },
    "route": {
      "type": "object",
      "description": "OpenAny route configuration, including provider and other routing parameters"
    },
    "tools": {
      "type": "array",
      "items": {
        "type": "object"
      },
      "description": "Tools available to the model"
    },
    "top_p": {
      "type": "number",
      "default": 1,
      "maximum": 1,
      "minimum": 0,
      "description": "Nucleus sampling probability"
    },
    "stream": {
      "type": "boolean",
      "default": false,
      "description": "Whether to stream the response"
    },
    "messages": {
      "type": "array",
      "items": {
        "type": "object"
      },
      "description": "The conversation messages"
    },
    "max_tokens": {
      "type": "integer",
      "minimum": 1,
      "description": "Maximum completion tokens"
    },
    "route_mode": {
      "type": "string",
      "description": "The mode for routing the request"
    },
    "temperature": {
      "type": "number",
      "default": 1,
      "maximum": 2,
      "minimum": 0,
      "description": "Sampling temperature"
    },
    "tool_choice": {
      "enum": [
        "none",
        "auto",
        "required"
      ],
      "type": [
        "string",
        "object"
      ],
      "description": "Tool selection policy: string modes none, auto, or required, or an object selecting a specific tool"
    },
    "response_format": {
      "type": "object",
      "description": "Format constraint for the response"
    },
    "presence_penalty": {
      "type": "number",
      "default": 0,
      "maximum": 2,
      "minimum": -2,
      "description": "Penalty for previously used tokens"
    },
    "frequency_penalty": {
      "type": "number",
      "default": 0,
      "maximum": 2,
      "minimum": -2,
      "description": "Penalty for repeated tokens"
    },
    "max_completion_tokens": {
      "type": "integer",
      "minimum": 1,
      "description": "Maximum visible completion tokens"
    }
  }
}

Model API questions

How do I call GLM 5.3 Flash through OpenAny?

Use model ID glm-5.3-flash with an OpenAny key and the operation published in this model's API tab. The model API base is https://api.openany.si/v1. Confirm the protocol and request schema; model availability does not imply every OpenAI API operation is supported.

How is GLM 5.3 Flash billed?

Compare the published rate and billing unit of the selected provider route. Input, output and cache token rates may differ. Image, audio and video models can use other units. Recorded usage determines the charge under that route's billing contract.

Are Community and Verified routes the same as an official publisher API?

No. Inspect the provider name and supply classification for the specific route. A marketplace listing or a supply label is not a claim of publisher endorsement, identical service or measured uptime. Different route prices may reflect different supply and conditions.

Where do these prices come from, and when were they updated?

Rates come from the provider routes in OpenAny's public model catalog, not an independent quote from the model publisher. The catalog does not supply a price update timestamp. A page or catalog snapshot date is not a price revision date. Compare supply, billing units, tiers and conditions; a lower listed rate alone does not establish equivalent service or explain the price difference.

Use GLM 5.3 Flash with your agent

Inspect endpoint contracts and confirm availability and pricing before a paid call.