GPT-4.5 is OpenAI's largest GPT model designed for creative tasks and agentic planning, featuring enhanced unsupervised learning, broader knowledge, improved intent recognition, and higher emotional intelligence.
The company that provides the model
The number of tokens you can send in a prompt
The maximum number of tokens a model can generate in one request
The cost of prompt tokens sent to the model
The cost of output tokens generated by the model
When the model's knowledge ends
When the model was launched
Capability for the model to use external tools
Ability to process and analyze visual inputs, like images
Support for multiple languages
Whether the model supports fine-tuning on custom datasets
GPT-4.5 costs $75 per million input tokens and $150 per million output tokens.
The API pricing for GPT-4.5 is the same as its token pricing: $75 per million input tokens and $150 per million output tokens.
This equates to approximately $0.075 per 1,000 input tokens and $0.15 per 1,000 output tokens.
GPT-4.5 supports a context window of 128,000 tokens.
It can generate outputs up to 128,000 tokens in extended sessions.
GPT-4.5 was released on February 27, 2025.
The training data cut-off date for GPT-4.5 is not specified.
Yes, GPT-4.5 supports vision capabilities, including image inputs.
Yes, GPT-4.5 supports function calling and can integrate with tools via the API.
Yes, it supports multiple languages for both input and output.
No, fine-tuning is not currently supported for GPT-4.5.
You can find the documentation here.
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