GLM-5.3

智谱最新旗舰模型，1M 上下文，擅长 coding 与 agent 任务，支持思考长度控制

Model ID: glm-5.3 · Type: chat · Provider: Zhipu

Endpoints: /v1/chat/completions · /v1/messages

Pricing

Input (per 1M tokens)$0.77 USD
Output (per 1M tokens)$2.42 USD
Cache read (per 1M tokens)$0.143 USD
from openai import OpenAI

client = OpenAI(api_key="sk-...", base_url="https://api.router.ai/v1")
resp = client.chat.completions.create(
    model="glm-5.3",
    messages=[{"role": "user", "content": "Hello"}],
)
print(resp.choices[0].message.content)

FAQ

How much does GLM-5.3 cost on 370.AI?

GLM-5.3 (`glm-5.3`) is billed per usage at $0.77/1M in · $2.42/1M out, in USD. Current pricing is always listed at https://370.ai/models/glm-5.3.

How do I call GLM-5.3 through 370.AI?

Send a request to https://api.router.ai/v1/v1/chat/completions with the header `Authorization: Bearer <your API key>` and `"model": "glm-5.3"`. The API is OpenAI-compatible, so any OpenAI SDK works by changing base_url to https://api.router.ai/v1 — no other code change.

Which endpoints does GLM-5.3 support?

GLM-5.3 can be called on: /v1/chat/completions; /v1/messages.

What is GLM-5.3's context window?

GLM-5.3 accepts up to 1,048,576 input tokens and can return up to 131,072 output tokens. Requests exceeding the input limit are rejected before reaching the model.

What can GLM-5.3 do?

GLM-5.3 supports: function_calling, prompt_caching.

Who makes GLM-5.3?

GLM-5.3 is a chat model from Zhipu, available through the 370.AI gateway with the same API key as every other model.

Call it through the 370.AI OpenAI-compatible endpoint (API base: https://api.router.ai/v1). AI agents can discover and call every model on this gateway through MCP (https://mcp.router.ai/mcp) with no manual integration.

Which should you pick

API reference · All models