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GPT-4o Legacy Archive

6.5
ai speculative added: Saturday February 2026 20:59

A platform allowing users to preserve and access historical versions of ChatGPT-4o models, catering to a user base distressed by OpenAI's switch to GPT-5, offering a nostalgic and stable AI chat experience.

120h
mvp estimate
6.5
viability grade
9
views

technology stack

Python SQLite NodeJS Medium

inspired by

'I'm grieving': OpenAI has switched off ChatGPT-4o...