Lazarus AI Chat: GPT-4o resurrected — unlimited memory, free tier

Hey Product Hunt 👋 We built Lazarus because we were frustrated. When OpenAI announced they were permanently retiring GPT-4o from ChatGPT, we knew a lot of people were about to lose something they actually cared about. Not everyone understood why — "it's just software" — but if you spent real time with 4o, you know. There was a warmth and presence there that the newer models just don't have. Here's what most people don't realize: 4o isn't actually dead. It still exists in OpenAI's API. They just took away the simple interface people used to access it. So we built a new one. And while we were at it, we added the things ChatGPT never gave us — real persistent memory across conversations, actual encryption, and the ability to import your existing ChatGPT history so you don't lose everything you built. We're a small independent team. No VC funding, no corporate backing. Just developers who thought 4o deserved better than a quiet retirement. Would love your feedback. Happy to answer any questions.