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GLM-5.1

by Z.ai
zai/glm-5.1

GLM-5.1 is a text-input model by Z.ai, available through the AgentSky API as zai/glm-5.1 at $1.54 per million input tokens and $4.84 per million output tokens, with a 200K context window.

A text model for autonomous multi-step execution, with planning and iterative refinement.

Repo

Pricing

USD per million tokens, using your plan when signed in.
MeterPer 1M tokens
InputPrice: $1.54
OutputPrice: $4.84
Cache readPrice: $0.286
Cache writePrice: $1.54

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-5.1",
  messages: [{ role: "user", content: "Summarise this ticket." }],
});
console.log(completion.usage.cost); // USD, in the response

Questions