About GPT-4.5 Preview (2025-02-27)
GPT-4.5 Preview (2025-02-27) by OpenAI is available on API Many from $66.00 per million input tokens and $132.00 per million output tokens, and you call it with the same API key you use for every other model.
It accepts OpenAI-style chat requests with streaming and tools.
You pay only for successful results: failed or rejected requests are refunded automatically, and every call is recorded in your console with its exact cost.