GPT-4.5 is OpenAI's language model, starting at $75.00 / 1M input and $150.00 / 1M output. OpenAI's GPT-4.5 model, a high-capability LLM positioned between GPT-4 and GPT-5 for advanced reasoning and instruction-following tasks.
Specifications
Canonical IDopenai-gpt-4-5
TypeLanguage
StatusActive
CreatorOpenAIOpenAI
Providers
Input ModalitiesText
Output ModalitiesText
Benchmarks
Time to First Token
#271
Output TPS
#507

Capabilities

Input1/5
Text✓
Image·
Audio·
Video·
PDF·
Output1/5
Text✓
Image·
Audio·
Video·
Embedding·
Capabilities0/13
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
ProviderStandard
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
Azure AI Foundry logo
Azure AI Foundry
openai:gpt45
$75.00$150.00$37.50

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——$75.00$150.00Current

Model IDs

gpt-4-5
openai-gpt-4-5