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GLM 5.3 FlashX

by Z.ai
zai/glm-5.3-flashx

GLM 5.3 FlashX is a text and image and video-input model by Z.ai, available through the AgentSky API as zai/glm-5.3-flashx at $0.429385 per million input tokens and $1.450625 per million output tokens, with a 1M context window.

GLM-5.3-FlashX is the high-speed variant of Z.ai's GLM-5.3-Flash, a native multimodal model delivering inference speeds of up to 200 tokens/s.

Repo

Pricing

USD per million tokens, using your plan when signed in.
MeterPer 1M tokens
InputPrice: $0.429385
OutputPrice: $1.450625
Cache readPrice: $0.104445
Cache writePrice: $0.429385

Every response carries its own cost. Balance and per-call records: /v1/credits and /v1/generation.

Use it

Point your client at the gateway and pass this model id. Nothing else changes.
import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://gateway.agentsky.dev/v1",
  apiKey: process.env.AGENTSKY_API_KEY, // ast_…
});

const completion = await client.chat.completions.create({
  model: "zai/glm-5.3-flashx",
  messages: [{ role: "user", content: "Summarise this ticket." }],
});
console.log(completion.usage.cost); // USD, in the response

Questions