GPT-4.5 Preview is OpenAI's language model with a 128K context window and up to 16K output tokens, starting at $75.00 / 1M input and $150.00 / 1M output. A deprecated research preview of GPT-4.5, offering early access to its capabilities before the model was superseded by newer GPT-4.1 and o3 alternatives.
Specifications
Canonical IDopenai-gpt-4-5-preview
TypeLanguage
StatusDeprecated
CreatorOpenAIOpenAI
Providers
Context Window128K tokens
Max Output16K tokens
Input ModalitiesImageText
Output ModalitiesText
Release Date · 2 years ago
Knowledge Cutoff · 3 years ago
Deprecation Date

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

US Dollar ($)
Per 1M tokens
ProviderStandardBatch
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
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gpt-4.5-preview
$75.00$150.00$37.50$37.50$75.00$18.75

Cost Calculator

US Dollar ($)
Preset:

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
GPT-6.1 Terra1.1M$1.00$5.00Available
GPT-6.1 Sol1.1M$2.00$10.00Available
GPT-6 Sol1.1M$2.00$10.00Available
GPT-6 Luna1.1M$0.100$0.500Available
GPT-6 Astra1.1M$10.00$50.00Available
GPT-5.6 Terra1.1M$2.00$12.00Deprecating
GPT-4o Audio128K$2.50$10.00Deprecated
GPT-4.1 mini1.0M$0.200$0.800Available
GPT-4.11.0M$2.00$8.00Deprecated
GPT-4.1 Batch1.0M$1.00$4.00Available
GPT-4.5 Preview128K$75.00$150.00Current

Model IDs

azure/gpt-4.5-preview
gpt-4.5-preview
openai-gpt-4-5-preview