Z.AI

GLM 5.3 Flash

Huge context, images and video, at a low price

Text

Images

Video

Reasoning

Tools

Type: Chat
Context: 1.3M tokens
Russian: medium
Input price: 0,44 ₽ / 1M tokens
Output price: 16,87 ₽ / 1M tokens
Release date: August 26, 2026

Start for free Try in the Playground

chat/completions

import OpenAI from "openai"
const client = new OpenAI({
  baseURL: "https://api.yenisei.ru/v1",
  apiKey: process.env.YENISEI_API_KEY,
})
const stream = await client.chat.completions.create({
  model: "glm-5.3-flash",
  messages: [{ role: "user", content: "Hi!" }],
  stream: true,
})
for await (const chunk of stream) {
  process.stdout.write(chunk.choices[0]?.delta?.content ?? "")
}

About the model

GLM 5.3 Flash is the fast variant of the flagship GLM that keeps the context of over 1.3 million tokens at a noticeably lower price. Unlike the flagship model, it also accepts images and video, so it is suited to analyzing screenshots, mockups and video clips. Reasoning kicks in for complex tasks and tool calling is supported, which makes the model a convenient base for agents at volume. It helps with code and keeps the answer format neatly. Russian at a medium level.