GLM 5 Flash is the fast, lightweight version of Z.ai's GLM 5 generation. It is tuned for low latency and low cost, so it responds quickly while keeping much of the quality of the full model.

Flash is a great fit for everyday questions, quick coding help, summaries, and translations. It keeps the 1M-token context window, so it can still work with long documents. The free GLM chat on chatai.org runs on GLM 5 Flash.

Fast Responses

Get answers in seconds, ideal for quick questions and back-and-forth chat.

Quick Coding Help

Write snippets, explain errors, and fix small bugs without waiting.

Summarization

Turn long articles, reports, and notes into short, clear summaries.

Translation

Translate text between Chinese, English, and many other languages.

Long Document Support

Paste long texts - Flash keeps the same 1M-token context window as GLM 5.

Everyday Chat

Brainstorm ideas, draft messages, and get help with daily tasks.

Open the chat

Click "Open Chat" - the GLM chat on chatai.org runs on GLM 5 Flash.

Ask your question

Type a question, paste text, or share a code snippet.

Get a fast answer

GLM 5 Flash replies in seconds with a clear response.

Follow up

Ask follow-up questions to dig deeper or adjust the answer.

Copy the result

Copy the answer or code for later use.

Yes, GLM 5 Flash is free on chatai.org. No registration required.

Flash is optimized for low latency and usually starts answering within a second or two.

Use Flash for everyday questions, quick coding help, and summaries. Choose GLM 5 for complex, multi-step tasks.

Yes, it keeps the 1M-token context window of the GLM 5 generation.

It handles everyday coding well - snippets, explanations, and small fixes. For large refactors, GLM 5 is stronger.

The free GLM chat on chatai.org runs on GLM 5 Flash.

GLM 5 Flash: Fast and Lightweight

What is GLM 5 Flash?

What GLM 5 Flash can do

How to use GLM 5 Flash

Frequently Asked Questions