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Z.ai

Is GLM 5.1 out? Yes, since April 7, 2026

Yes. GLM 5.1 was released on April 7, 2026.

A browser notification for each confirmed release in this family. No account or email.

Have you used it? GLM 5.1

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Lab
Z.ai
Family
GLM
Release date
Source
Z.ai · New released

What changed

  • context 205k tokens · Context window of GLM 5.1. GLM 5 is the previous model of the same tier, but the gap is beyond what a percentage explains.
  • price +40 % · Prompt price compared with GLM 5, same tier in this family. Went from $1.00 / MTok to $1.40 / MTok. Lower is better.

About GLM 5.1

GLM-5.1 delivers a major leap in coding capability, with particularly significant gains in handling long-horizon tasks. Unlike previous models built around minute-level interactions, GLM-5.1 can work independently and continuously on...

Next GLM model to watch

Questions

When was GLM 5.1 released?
GLM 5.1 was released on April 7, 2026.
Who makes GLM 5.1?
GLM 5.1 is made by Z.ai.
What comes after GLM 5.1?
GLM 5.2, released on June 16, 2026.