Z.ai
·Released on Jul 25, 2025

GLM-4.5 Air API Benchmarks, Pricing & Provider Data

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GLM-4.5 Air benchmark, API pricing, and provider data cover 112 API providers, with prices starting at $0.0050/request. GLM-4.5 Air free API options are available from 2 providers. The page also shows measured API speed and first-token latency.

Zhipu AI GLM-4.5 Air is a lightweight GLM-4.5 variant optimized for low-latency Chinese and English dialogue, retrieval-augmented apps, and edge deployments.

Quality
0.0
LMSpeed score
Speed
60char/s
10.99 s
Cost
#28of 180
$0.0050/ 1M · 8:1 in:out
$0.0008 in · $0.0042 out

Category Performance

Observed-capability estimates with uncertainty reported separately from independent benchmark families.

Coverage
6 / 8
Methodology
V3.0
Category PerformanceObserved-capability estimates with uncertainty reported separately from independent benchmark families.Agents42.9Coding48.1Reasoning47Knowledge36Math56.9Multilingual-Multimodal-Instruction following42.6
#1Math56.9Estimated2/4 Measured dimensions
80% interval: 45.068.7
foundational math57.7
math_500 · math_500
competition math56
aime · aime
proof frontierPrior only
applied tool mathPrior only
#2Coding48.1Provisional1/4 Measured dimensions
80% interval: 34.262.0
code generation48.1
livecodebench · livecodebench / scicode · scicode
repository engineeringPrior only
debugging testingPrior only
tooling qualityPrior only
#3Reasoning47RatedGlobal rank #513/4 Measured dimensions
80% interval: 38.455.7
abstract logicPrior only
scientific causal46
critpt · critpt / gpqa · gpqa / hle · hle
multistep constraints52.8
mmlu_pro · mmlu_pro
evidence verification42.3
lcr · lcr
#4Agents42.9Provisional1/4 Measured dimensions
80% interval: 26.958.9
planningPrior only
tool use42.9
tau · tau2_bench
environment executionPrior only
recovery reliabilityPrior only
#5Instruction following42.6Provisional1/4 Measured dimensions
80% interval: 26.658.6
constraint followingPrior only
structured outputPrior only
novel instruction generalization42.6
ifbench · aa_if_bench
long multiturn instructionPrior only
#6Knowledge36Provisional1/4 Measured dimensions
80% interval: 20.052.1
broad knowledge36
aa_omniscience · aa_omniscience_index
professional knowledgePrior only
factualityPrior only
retrieval open bookPrior only
No data:MultilingualMultimodal

Specifications

Input and output token limits for this model, plus how it ranks on long-context understanding.

INPUT
131.1Ktokens
157.3 pages of text
OUTPUT
98.3Ktokens
8K128K1M4M
131.1K

Features

Technical Details

Input
Output
Released
Jul 2025
Knowledge cutoff
2024-12-31
Tokenizer
Other
Architecture
text->text
Moderated
No
Supported parameters
frequency_penaltyinclude_reasoningmax_tokenspresence_penaltyreasoningrepetition_penaltyseedstoptemperaturetool_choicetoolstop_ktop_p

Rankings

Excels at

It's decent at

Falls behind in

Detailed scores

Updated: Aug 31, 2026

Pricing

undefined metric} other undefined metrics}}

Input price$0.170/M#28 / 180Output price$0.980/M#45 / 180
Input price
LMSpeed rank#28
Score$0.170/M
UpdatedAug 31, 2026
Confidence4
Output price
LMSpeed rank#45
Score$0.980/M
UpdatedAug 31, 2026
Confidence4

Agents

V3.0

undefined metric} other undefined metrics}} · Provisional

Score42.980% interval26.9–58.91/4 Measured dimensionsΤ²-bench results46.5#68 / 82
Dimensions and evidence
Planning & decompositionPrior only
Tool use42.9
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
tau · tau2_bench · z -1.06 · q 1.00
Environment & long-horizon executionPrior only
Recovery & completion reliabilityPrior only
Τ²-bench resultsV3 evidence
LMSpeed rank#68
Score46.5
UpdatedAug 20, 2026
Confidence1

Coding

V3.0

undefined metric} other undefined metrics}} · Provisional

Score48.180% interval34.2–62.01/4 Measured dimensionsLiveCodeBench68.4%#32 / 115SciCode30.6%#155 / 205
Dimensions and evidence
Code generation48.1
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
livecodebench · livecodebench · z 0.55 · q 1.00
scicode · scicode · z -0.71 · q 1.00
Repository engineeringPrior only
Debugging & testingPrior only
Tool-assisted development & qualityPrior only
LiveCodeBenchV3 evidence
LMSpeed rank#32
Score68.4%
UpdatedAug 31, 2026
Confidence4
SciCodeV3 evidence
LMSpeed rank#155
Score30.6%
UpdatedAug 31, 2026
Confidence4
AA-SciCodeV3 evidence
LMSpeed rank#96
Score30.6
UpdatedAug 20, 2026
Confidence1

Reasoning

V3.0

undefined metric} other undefined metrics}} · Rated

Score47#5180% interval38.4–55.73/4 Measured dimensionsMMLU-Pro81.5%#56 / 129GPQA73.3%#129 / 212
Dimensions and evidence
Abstract logicPrior only
Scientific & causal reasoning46
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
critpt · critpt · z -0.72 · q 1.00
gpqa · gpqa · z -0.20 · q 1.00
hle · hle · z -0.49 · q 1.00
Multi-step constraints52.8
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
mmlu_pro · mmlu_pro · z 0.17 · q 1.00
Evidence integration & verification42.3
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
lcr · lcr · z -1.38 · q 1.00
MMLU-ProV3 evidence
LMSpeed rank#56
Score81.5%
UpdatedAug 31, 2026
Confidence4
GPQAV3 evidence
LMSpeed rank#129
Score73.3%
UpdatedAug 31, 2026
Confidence4
HLEV3 evidence
LMSpeed rank#135
Score7.0%
UpdatedAug 31, 2026
Confidence4
AA-LCRV3 evidence
LMSpeed rank#84
Score45.7
UpdatedAug 20, 2026
Confidence1

Knowledge

V3.0

undefined metric} other undefined metrics}} · Provisional

Score3680% interval20.0–52.11/4 Measured dimensionsArtificial Analysis Intelligence Index16.7#91 / 111AA-GPQA Diamond73.3#85 / 108
Dimensions and evidence
Broad knowledge36
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
aa_omniscience · aa_omniscience_index · z -1.95 · q 1.00
Professional knowledgePrior only
FactualityPrior only
Retrieval & open-book usePrior only
Artificial Analysis Intelligence IndexV3 evidence
LMSpeed rank#91
Score16.7
UpdatedAug 20, 2026
Confidence1
AA-GPQA Diamond
LMSpeed rank#85
Score73.3
UpdatedAug 20, 2026
Confidence1
AA-HLE
LMSpeed rank#85
Score7.0
UpdatedAug 20, 2026
Confidence1
AA-Omniscience Accuracy
LMSpeed rank#94
Score16.3
UpdatedAug 20, 2026
Confidence1
AA-Omniscience Hallucination Rate
LMSpeed rank#8
Score92.9
UpdatedAug 20, 2026
Confidence1

Math

V3.0

undefined metric} other undefined metrics}} · Estimated

Score56.980% interval45.0–68.72/4 Measured dimensionsAIME67.3%#23 / 68MATH-50096.5%#16 / 73
Dimensions and evidence
Foundational math57.7
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
math_500 · math_500 · z 1.06 · q 1.00
Competition math56
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
aime · aime · z 0.78 · q 1.00
Advanced proofsPrior only
Applied & tool-assisted mathPrior only
AIMEV3 evidence
LMSpeed rank#23
Score67.3%
UpdatedAug 31, 2026
Confidence4
MATH-500V3 evidence
LMSpeed rank#16
Score96.5%
UpdatedAug 31, 2026
Confidence4

Multilingual

V3.0

undefined metric} other undefined metrics}} · No data

No data80% interval30.8–69.20/4 Measured dimensions
Dimensions and evidence
Cross-language understandingPrior only
Multilingual generationPrior only
Reasoning transferPrior only
Low-resource robustnessPrior only

Multimodal

V3.0

undefined metric} other undefined metrics}} · No data

80% interval30.8–69.20/4 Measured dimensionsDesign Arena Website1158.0#57 / 75
Dimensions and evidence
Perception & OCRPrior only
Document & spatial understandingPrior only
Visual reasoningPrior only
Video & grounded actionPrior only
Design Arena Website
LMSpeed rank#57
Score1158.0
UpdatedAug 20, 2026
Confidence1

Instruction following

V3.0

undefined metric} other undefined metrics}} · Provisional

Score42.680% interval26.6–58.61/4 Measured dimensionsAA-IFBench37.6#75 / 84
Dimensions and evidence
Constraint followingPrior only
Structured outputPrior only
Novel-instruction generalization42.6
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
ifbench · aa_if_bench · z -1.25 · q 1.00
Multi-turn & long instructionsPrior only
AA-IFBenchV3 evidence
LMSpeed rank#75
Score37.6
UpdatedAug 20, 2026
Confidence1

OpenRouter endpoints

3 endpoints

Third-party OpenRouter endpoint data, shown separately from LMSpeed measurements. Some 30-minute live performance fields only appear after syncing with an OpenRouter API key.

Provider endpointInputOutput1d uptime30m latency30m throughputContext / output
Novita
novita/bf16
$0.130/M$0.850/M99.6%undefined tokens / undefined tokens
Z.AI
z-ai/fp8
$0.200/M$1.10/M99.4%undefined tokens / undefined tokens
SiliconFlow
siliconflow/fp8
$0.140/M$0.860/M0%undefined tokens / undefined tokens

Pricing Comparison

Compare GLM-4.5 Air API pricing across 110 providers. Prices range from $0.0050/request to $75.00/M. OpenRouter Fans offers the lowest rate at $0.0050/request. 2 providers offer free API credits or a free tier.

ProviderHealthModel VariantGroupInput ($/M)Output ($/M)Speed (t/s)First tokenAudit
L1
100%
glm-4.5-air
default
$0.010/request
-
29.5 t/s
24.77 s
L1
100%
z-ai/glm-4.5-air:free
default
$0.010/request
-
25.0 t/s
53.96 s
L1
100%
glm-4.5-air
default
-68%$0.055/M
-58%$0.411/M
L1
100%
glm-4.5-air
sale
$0.400/M
$1.00/M
L1
100%
glm-4.5-air
default
-36%$0.110/M
-16%$0.822/M
L1
100%
glm-4.5-air
default
-52%$0.082/M
-44%$0.548/M
L1
100%
glm-4.5-air
default
Free
Free
L1
100%
glm-4.5-air
default
-72%$0.048/M
Cache read$0.0072/M
-73%$0.264/M
L1
100%
z-ai/glm-4.5-air:free
default
$0.0050/request
-
L1
100%
glm-4.5-air
default
-68%$0.055/M
-58%$0.411/M
L1
99%
glm-4.5-air
other
-51%$0.083/M
Cache read$0.012/M
-53%$0.458/M
L1
100%
glm-4.5-air
default
-3%$0.164/M
$1.10/M
L1
100%
glm-4.5-air
default
-92%$0.014/M
Cache read$0.0021/M
-92%$0.075/M
L1
99%
glm-4.5-air
default
-48%$0.088/M
-33%$0.658/M
L1
100%
glm-4.5-air
default
$0.900/M
$6.00/M
L1
100%
L2
0%
glm-4.5-air
default
$0.800/M
Cache read$0.160/M
$6.00/M
L1
98%
zai-org/GLM-4.5-Air
default
-42%$0.098/M
-45%$0.538/M
L1
98%
glm-4.5-air-nothinking
default
$0.587/M
$3.92/M
L1
98%
glm-4.5-air
default
$0.587/M
Cache read$0.117/M
$3.92/M
L1
100%
glm-4.5-air
default
$0.800/M
$1.20/M
Showing 20 model IDs of 36.

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Frequently Asked Questions

What benchmark data does GLM-4.5 Air include?
LMSpeed shows GLM-4.5 Air benchmark context, API price, output speed, first-token latency, and provider data across 112 providers when those signals are available.
What is the GLM-4.5 Air API price?
GLM-4.5 Air has pricing from 112 providers, ranging from $0.0050/request to $75.00/M. OpenRouter Fans has the lowest listed price.
What does the GLM-4.5 Air API pricing table include?
The GLM-4.5 Air API pricing table compares 112 providers by input price, output price, free tier status, speed, first-token latency, and recent health data when available.
Which provider has the cheapest GLM-4.5 Air API pricing?
OpenRouter Fans currently has the lowest listed GLM-4.5 Air price at $0.0050/request across 112 providers.
Can I compare GLM-4.5 Air API price and speed together?
Yes. LMSpeed shows GLM-4.5 Air API price, output speed, first-token latency, and provider health on the same page so you can compare cost and performance together.
Is GLM-4.5 Air API free?
Yes, GLM-4.5 Air free API options are available through 2 providerundefined other undefined} on LMSpeed, including Zero API, 兔子API. These providers offer free API credits or a free tier with no per-token charges.
Where can I get GLM-4.5 Air free API access?
LMSpeed currently lists 2 free API providerundefined other undefined} for GLM-4.5 Air: Zero API, 兔子API. Check each provider row before using it because free tier limits can change.

Also known as

GLM-4.5-AirGLM-4.5-Air-NoThinkingGLM-4_5-AirZhipuAI/GLM-4.5-Airglm-4-5-air

Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.Standard benchmark data may include BenchLM and other public sources.

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