# GPT-4.5

> OpenAI's largest model, at seventy-five dollars a million input tokens, withdrawn from the API four and a half months after it arrived. It was the last serious attempt to get better by getting bigger, and it landed in the same season the field decided the answer was to think for longer instead.

2025-02-27 — 2025-07-14 · lived 4 months

This URL is the guided walk — the 3D cemetery, standing at this grave. The written record is at [GPT-4.5's epitaph](https://models.rip/gpt-4.5-preview/epitaph).

## Elsewhere

- [The whole cemetery](https://models.rip/)
- [The dataset](https://models.rip/graveyard.json)