GLM 5.3 FlashX

language modelZ.ai

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. Built on the same hybrid sparse and linear attention architecture...

Key facts

Made byZ.ai
Typelanguage model
ReleasedSeptember 18, 2026
Reads at once1,048,576 tokens
Price (API, per million tokens)$0.37 in · $1.25 out
Input → outputtext, image, video → text

Questions about GLM 5.3 FlashX

Who makes GLM 5.3 FlashX?

GLM 5.3 FlashX is made by Z.ai.

When was GLM 5.3 FlashX released?

We first saw GLM 5.3 FlashX listed on September 18, 2026.

How much does GLM 5.3 FlashX cost?

Through OpenRouter it costs $0.37 per million input tokens and $1.25 per million output tokens. Prices change, so check the provider before you build on it.

How much text can GLM 5.3 FlashX read at once?

Up to 1,048,576 tokens, roughly 786.4K words.

More from Z.ai

Other language models

Modelcast collects this page automatically from public sources (OpenRouter). Facts are copied from those sources, not written by the maker. Not affiliated with Z.ai.