> GLM-4.5 is an open-weights AI model from Zhipu, released 28 Jul 2025. API price $0.60 in / $2.2 out per million tokens, 131K context.

[Models](https://themodelindex.org/models/) /[Zhipu](https://themodelindex.org/labs/zhipu/)

# GLM-4.5

Zhipu

Released 28 Jul 2025

Open

Date verified

[Compare](https://themodelindex.org/compare/glm-4-5-vs-gpt-5/) [Announcement](https://z.ai/blog/glm-4.5)

–

Index score

Not yet evaluated independently

1/ 8

Core tests taken

1 of 6 areas · plus 0 anchor tests

–

Versus the frontier at release

Replaced by [GLM-4.6](https://themodelindex.org/models/glm-4-6/)

$0.60/ $2.2

Price per million tokens

input / output, list price

131K

Context window

tokens it reads at once

## Where it sits · on the frontier

_Chart: Model Index score of every scored model since late 2022, with the best closed and best open model over time_

o1-mini reached this score 10 months earlier.

## Test results · by area · tick = best by any model

Reasoning & knowledge

evidence

GPQA Diamond

no result

Humanity's Last Exam

8%

Maths

no evidence yet

FrontierMath T1-3

no result

Coding

no evidence yet

SWE-bench Verified

no result

Terminal-Bench

no result

Agents

no evidence yet

APEX-Agents

no result

Novel problems

no evidence yet

ARC-AGI-2

no result

Long tasks

no evidence yet

METR time horizon

no result

Independent results from the Epoch AI benchmarking hub, best reasoning setting. The core tests are shown here; anchor tests also inform the score and can be shown above.

## What others say · rank on each leaderboard

LMArena · Maths

maths questions in chat

#122

of 373 · 1411

LMArena · Text

overall chat quality, judged by people

#128

of 388 · 1411

LMArena · Coding

coding questions in chat

#131

of 383 · 1455

LMArena · Creative writing

creative writing

#133

of 386 · 1372

Further left is better. Leaderboards measure different things: LMArena is people voting blind between two answers, the others are test scores. Click any row for the source.

## Best at · top three among current models

Replaced by GLM-4.6; it no longer leads any category among current models.

Where this model places in the top three of today's models, on category leaderboards and on our core tests.

## Where to use it · prices checked 1 Oct 2026

#### From the lab

Z.ai Chat

app · subscription

↗

Z.ai API

API

↗

#### API providers · 1 · per million tokens, in / out

Z

Z.AI

$0.60 / $2.2 · fp8

cheapest

#### Run it yourself

🤗

Official weights

zai-org/GLM-4.5

↗

Provider prices come from OpenRouter's live listing; going direct to a provider can differ. Subscriptions are the lab's own apps.

## Facts and sources

Released

28 Jul 2025

Announcement

[z.ai ↗](https://z.ai/blog/glm-4.5)

Release entry

GLM-4.5

Scored as

GLM-4.5

Artificial Analysis index

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Output speed

–

Hugging Face

[zai-org/GLM-4.5 ↗](https://huggingface.co/zai-org/GLM-4.5)

## Zhipu releases · around this one

ChatGLM-6B

Open

14 MAR 2023

GLM-4

Closed

16 JAN 2024

GLM-4.5

Open

28 JUL 2025

GLM-4.6

Open

30 SEP 2025

GLM-4.7

Open

22 DEC 2025

index 139

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Source: https://themodelindex.org/models/glm-4-5/ · The Model Index · data as of 2026-10-01