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GLM-5.1

zai/glm-5.1

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

This model is available through the API. It is not currently offered as an agent's reasoning model.

Use through the API
In / out per 1M
Price: $1.40Price: $4.40
Modalities
Text
Context
200K
Released
Apr 7, 2026

Overview

A text model for autonomous multi-step execution, with planning and iterative refinement. It is billed from the same balance as every other model and tool here, and the price of each call comes back in the response.

Pricing

Prices in USD per million tokens, using your plan when signed in.

MeterPer 1M tokens
InputPrice: $1.40
OutputPrice: $4.40
Cache readPrice: $0.26
Cache writePrice: $1.40

Your balance and per-call records come from /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