The Model Index
Models/Zhipu

GLM-4.5-Air

ZhipuReleased 20 Jul 2025Open
Compare
–Index scoreNot yet evaluated independently
1/ 8Core tests taken1 of 6 areas · plus 0 anchor tests
–Versus the frontier at release
$0.13/ $0.85Price per million tokensinput / output, list price
131KContext windowtokens it reads at once

Where it sitson the frontier

o1-mini reached this score 10 months earlier.

Test resultsby area · tick = best by any model

Reasoning & knowledgeevidence
GPQA Diamond
no result
Humanity's Last Exam
8%
Mathsno evidence yet
FrontierMath T1-3
no result
Codingno evidence yet
SWE-bench Verified
no result
Terminal-Bench
no result
Agentsno evidence yet
APEX-Agents
no result
Novel problemsno evidence yet
ARC-AGI-2
no result
Long tasksno 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 sayrank on each leaderboard

LMArena · Mathsmaths questions in chat#158of 373 · 1387LMArena · Codingcoding questions in chat#166of 383 · 1427LMArena · Textoverall chat quality, judged by people#172of 388 · 1373LMArena · Creative writingcreative writing#182of 386 · 1327

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 attop three among current models

Not in the top three among current models on any category we track.

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

Where to use itprices checked 1 Oct 2026

From the lab

Z.ai Chatapp · subscription↗Z.ai APIAPI↗

API providers 3 · per million tokens, in / out

NNovita$0.13 / $0.85 · bf16cheapestSSiliconFlow$0.14 / $0.86 · fp8↗ZZ.AI$0.20 / $1.1 · fp8↗

Run it yourself

🤗Official weightszai-org/GLM-4.5-Air↗

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

Released20 Jul 2025
Announcementnot linked yet
Release entry–
Scored asGLM-4.5-Air
Artificial Analysis index–
Output speed–

Zhipu releasesaround this one

ChatGLM-6BOpen
GLM-4Closed