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GPT-4.5 Preview


GPT-4.5 Preview is OpenAI logoOpenAI's language model with a 128K context window and up to 16K output tokens, available from 2 providers, starting at $75.00 / 1M input and $150.00 / 1M output. A deprecated research preview of GPT-4.5, offering an early look at the model's capabilities before its full release.
Spec
Canonical IDopenai-gpt-4-5-preview
TypeLanguage
StatusActive
CreatorOpenAIOpenAI
Providers
Context Window128K tokens
Max Output16K tokens
Input ModalitiesImageText
Output ModalitiesText
Release Date · 1 year ago
Knowledge Cutoff

Capabilities

Input2/5
Text
Image
Audio·
Video·
PDF·
Output1/5
Text
Image·
Audio·
Video·
Embedding·
Capabilities5/13
Reasoning·
Adaptive Reasoning·
Function Calling
Parallel Function Calling
Structured Outputs
Native JSON Schema
Web Search·
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching
Assistant Prefill·

Pricing by Provider

ProviderStandardBatch
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
Azure AI Foundry logo
Azure AI Foundry
gpt-4.5-preview
$75.00$150.00$37.50$37.50$75.00N/A
OpenAI logo
OpenAI
gpt-4.5-preview
$75.00$150.00$37.50$37.50$75.00$18.75

Cost Calculator

Preset:
Compares every provider & tier in USD

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
GPT-5.4 Mini1.1M$0.750$4.50Available
GPT-5.4 Nano1.1M$0.200$1.25Available
GPT-5.41.1M$2.50$15.00Available
GPT-5.4 Pro1.1M$30.00$180.00Available
GPT-5.4 3.51.1MAvailable
GPT-5.4 Pro 3.51.1MAvailable
GPT-5.3 Chat128K$1.75$14.00Available
GPT-5.3 Codex400K$1.75$14.00Available
GPT-5.3 Codex Spark128KAvailable
GPT-5.3 Instant128KAvailable
GPT-4.5 Preview128K$75.00$150.00Current

Model IDs