How much does GLM 4.5 Air cost?

GLM 4.5 Air costs $0.13 per million input tokens and $0.85 per million output tokens. For a typical conversation (~2,000 tokens), that's approximately $0.001 per message.

What benchmarks has GLM 4.5 Air been tested on?

GLM 4.5 Air has been evaluated on 1 benchmarks. Top scores: Chatbot Arena Elo — Overall: 1373.3.

Is GLM 4.5 Air open source?

Yes, GLM 4.5 Air is open source.

How does GLM 4.5 Air compare to Qwen3 Coder Next FP8?

GLM 4.5 Air has an average score of n/a while Qwen3 Coder Next FP8 scores n/a. Qwen3 Coder Next FP8 slightly outperforms GLM 4.5 Air overall. See full comparison →

Home/Models/GLM 4.5 Air

GLM 4.5 Air

Name: GLM 4.5 Air · benchmarks, pricing and providers
Creator: BenchGecko

by z-ai · Released Jul 2025

Open Source

Compare

Context

131K tokens (~66 books)

Input $/1M

$0.13

Output $/1M

$0.85

Type

text

License

Open Source

Benchmarks

1 tested

Data as of 2026-10-05

About

GLM-4.5-Air is the lightweight variant of our latest flagship model family, also purpose-built for agent-centric applications. Like GLM-4.5, it adopts the Mixture-of-Experts (MoE) architecture but with a more compact parameter...

Tested on 1 benchmarks. Top scores: Chatbot Arena Elo — Overall (1373.3%).

Benchmark Scores

Compare All

Tested on 1 benchmarks · Ranked across 1 categories

Score Distribution (all 312 models)

0255075100

arenaCompare arena →

Chatbot Arena Elo — Overall

Chatbot Arena overall Elo rating. Crowdsourced human preference ranking from blind head-to-head comparisons across all topics.

1373·

Quick compare:

vs Qwen3 Coder Next FP8

vs Qwen2.5 Coder 32B Instruct AWQ

vs Speaker Diarization Community 1

Excellent (85+) Good (70-85) Average (50-70) Below (<50)

Model Family · z-ai GLM 4.5

GLM 4.5Jul 2025

72.3

$0.60/M in131Kctx7 benchmarks

GLM 4.5 AirJul 2025

$0.13/M in(-0.47)131Kctx1 benchmark

GLM 4.5 Air (free)Jul 2025

$0.00/M in(-0.13)131Kctx

See the full GLM 4.5 family →

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n/an/a

Links

Info

z-ai Pricing explorer Developers · API

Research

Documentation

Community

Source Code

BenchGecko API

glm-4-5-air

Specifications

Typetext
Context131K tokens (~66 books)
ReleasedJul 2025
LicenseOpen Source
StatusActive
Cost / Message~$0.001

Available On

z-ai$0.13

Learn More

context-window transformer open weights tokens

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n/a

Qwen2.5 Coder 32B Instruct AWQ

n/a

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Frequently Asked Questions

GLM 4.5 Air is an open-source text AI model by z-ai, released in July 2025. Context window: 131K tokens.

Benchmarks

Chatbot Arena Elo — Overall

z-ai · Provider z-ai · Economy All Models Compare Models Pricing Developers · API Context Window · Glossary

Key facts · as of 2026-10-05

GLM 4.5 Air by z-ai. Not enough public benchmark scores to rank yet.
List price $0.13 input · $0.85 output per 1M tokens (as of 2026-10-05).
Sold by 3 providers (as of 2026-10-05): Novita (bf16) $0.13 in / $0.85 out · SiliconFlow (fp8) $0.14 in / $0.86 out · Z.AI (fp8) $0.20 in / $1.10 out. Every provider

How to cite · data as of 2026-10-05

GLM 4.5 Air · benchmarks, pricing and providers. BenchGecko, data as of 2026-10-05. https://benchgecko.ai/model/glm-4-5-air

Credit "Source: BenchGecko" with a link. Prices per provider and Gecko Tests are BenchGecko data (CC BY 4.0); benchmark scores keep their original source, listed in the JSON. JSON · llms.txt · MCP

GLM 4.5 Air

Frequently Asked Questions

Related Models

Benchmarks

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Key facts · as of 2026-10-05

How to cite · data as of 2026-10-05