OpenAI

GPT-4.5 API Benchmarks, Pricing & Provider Data

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GPT-4.5 benchmark, API pricing, and provider data cover 89 API providers, with prices starting at $3.08/M. GPT-4.5 free API options are available from 4 providers.

OpenAI GPT-4.5 advances general reasoning, tool use, and multimodal understanding for demanding assistant and agent applications.

Cost
$3.08/ 1M · 8:1 in:out
$0.493 in · $2.59 out

Category Performance

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

Coverage
0 / 8
Methodology
V3.0
Category PerformanceObserved-capability estimates with uncertainty reported separately from independent benchmark families.Agents-Coding-Reasoning-Knowledge-Math-Multilingual-Multimodal-Instruction following-

No benchmark category data yet.

No data:AgentsCodingReasoningKnowledgeMathMultilingualMultimodalInstruction following

Specifications

Technical Details

Documentation

Detailed scores

Updated: Sep 2, 2026

Agents

V3.0

undefined metric} other undefined metrics}} · No data

No data80% interval30.8–69.20/4 Measured dimensions
Dimensions and evidence
Planning & decompositionPrior only
Tool usePrior only
Environment & long-horizon executionPrior only
Recovery & completion reliabilityPrior only

Coding

V3.0

undefined metric} other undefined metrics}} · No data

No data80% interval30.8–69.20/4 Measured dimensions
Dimensions and evidence
Code generationPrior only
Repository engineeringPrior only
Debugging & testingPrior only
Tool-assisted development & qualityPrior only

Reasoning

V3.0

undefined metric} other undefined metrics}} · No data

No data80% interval30.8–69.20/4 Measured dimensions
Dimensions and evidence
Abstract logicPrior only
Scientific & causal reasoningPrior only
Multi-step constraintsPrior only
Evidence integration & verificationPrior only

Knowledge

V3.0

undefined metric} other undefined metrics}} · No data

No data80% interval30.8–69.20/4 Measured dimensions
Dimensions and evidence
Broad knowledgePrior only
Professional knowledgePrior only
FactualityPrior only
Retrieval & open-book usePrior only

Math

V3.0

undefined metric} other undefined metrics}} · No data

No data80% interval30.8–69.20/4 Measured dimensions
Dimensions and evidence
Foundational mathPrior only
Competition mathPrior only
Advanced proofsPrior only
Applied & tool-assisted mathPrior only

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

No data80% interval30.8–69.20/4 Measured dimensions
Dimensions and evidence
Perception & OCRPrior only
Document & spatial understandingPrior only
Visual reasoningPrior only
Video & grounded actionPrior only

Instruction following

V3.0

undefined metric} other undefined metrics}} · No data

No data80% interval30.8–69.20/4 Measured dimensions
Dimensions and evidence
Constraint followingPrior only
Structured outputPrior only
Novel-instruction generalizationPrior only
Multi-turn & long instructionsPrior only

Pricing Comparison

Compare GPT-4.5 API pricing across 85 providers. Prices range from $3.08/M to $495.00/M. ZEN-AI VIP offers the lowest rate at $3.08/M. 4 providers offer free API credits or a free tier.

ProviderHealthModel VariantGroupInput ($/M)Output ($/M)Speed (t/s)First tokenAudit
L1
100%
gpt-4.5-preview-2025-02-27
default
$10.27/M
$20.55/M
L1
100%
gpt-4.5-preview
default
$10.27/M
$20.55/M
L1
100%
gpt-4.5-preview-2025-02-27
default
$57.53/M
$115.07/M
L1
100%
gpt-4.5-preview
default
$57.53/M
$115.07/M
L1
100%
gpt-4.5-preview
原价分组
Free
Free
L1
100%
gpt-4.5-preview-2025-02-27
default
Free
Free
L1
100%
gpt-4.5-preview-2025-02-27
default
$3.08/M
Cache read$1.54/M
$6.16/M
L1
100%
gpt-4.5-preview
default
$3.08/M
Cache read$1.54/M
$6.16/M
L1
100%
gpt-4.5-preview
gpt-openai
$300.00/M
Cache read$150.00/M
$600.00/M
L1
100%
gpt-4.5-preview-2025-02-27
gpt-openai
$300.00/M
Cache read$150.00/M
$600.00/M
L1
100%
gpt-4.5-preview
default
$5.14/M
Cache read$2.57/M
$10.27/M
L1
100%
gpt-4.5-preview-2025-02-27
default
$5.14/M
Cache read$2.57/M
$10.27/M
L1
99%
gpt-4.5-preview
gpt-vip
$35.96/M
Cache read$17.98/M
$71.92/M
L1
99%
gpt-4.5-preview-2025-02-27
gpt-vip
$35.96/M
Cache read$17.98/M
$71.92/M
L1
99%
gpt-4.5-preview-2025-02-27
default
$75.00/M
Cache read$37.50/M
$150.00/M
L1
99%
gpt-4.5-preview
default
$75.00/M
Cache read$37.50/M
$150.00/M
L1
100%
gpt-4.5-preview
default
$112.50/M
$225.00/M
L1
100%
gpt-4.5-preview-2025-02-27
default
$112.50/M
$225.00/M
L1
99%
gpt-4.5-preview
default
$36.71/M
$73.43/M
L1
99%
gpt-4.5-preview-2025-02-27
default
$36.71/M
$73.43/M
Showing 20 model IDs of 33.

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Frequently Asked Questions

What benchmark data does GPT-4.5 include?
LMSpeed shows GPT-4.5 benchmark context, API price, output speed, first-token latency, and provider data across 89 providers when those signals are available.
What is the GPT-4.5 API price?
GPT-4.5 has pricing from 89 providers, ranging from $3.08/M to $495.00/M. ZEN-AI VIP has the lowest listed price.
What does the GPT-4.5 API pricing table include?
The GPT-4.5 API pricing table compares 89 providers by input price, output price, free tier status, speed, first-token latency, and recent health data when available.
Which provider has the cheapest GPT-4.5 API pricing?
ZEN-AI VIP currently has the lowest listed GPT-4.5 price at $3.08/M across 89 providers.
Is GPT-4.5 API free?
Yes, GPT-4.5 free API options are available through 4 providerundefined other undefined} on LMSpeed, including 兔子API, 兔子API, 兔子API, 兔子API. These providers offer free API credits or a free tier with no per-token charges.
Where can I get GPT-4.5 free API access?
LMSpeed currently lists 4 free API providerundefined other undefined} for GPT-4.5: 兔子API, 兔子API, 兔子API, 兔子API. Check each provider row before using it because free tier limits can change.

Also known as

gpt-4.5gpt-4.5-previewgpt-4.5-preview-2025-02-27openai/gpt-4.5-preview

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

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