{
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  "path": "/t/certainthing-is-my-new-project-and-it-surprised-me/1381633#post_1",
  "publishedAt": "2026-05-23T09:34:22.000Z",
  "site": "https://community.openai.com",
  "tags": [
    "CertainThing",
    "CertainThing — AI Vibe Coding Tool | From Idea to Live App in 60 Seconds"
  ],
  "textContent": "After weeks of development I have finally released in Early Access my new project, a vibe coding tool based on `gpt-5-nano` and integrated with GitHub.\n\nIt’s my first project with resoning models, and it surprised me a lot!\n\nI’ve heard and read many bad things about `nano` models, especially in terms of reasoning capabilities and latency, although my personal experience with `gpt-4.1-nano` was astonishing (even with no reasoning). I wanted to give the model a chance, since i said to myself “ _Ok, it’s just a test!_ ”.\n\nNeedless to say, I was amazed at how simple the SSE management was, and at how the model reasoning responded to the 25 tasks i used for testing. I need to point out that in test phase the average latency was around **47-54 seconds for a complete generation**. More than `gpt-4*` models but with a way beter result.\n\nThis convinced me to release it in Easly Access, and it was a WoW!\n\nIn the first 24 hours, 15 developers had created an account and in 16 hours 4 of them has signed up for the paid plan.\n\nI got 8 feedbacks in these 36 hours, all positive, and most of them praised the ease of work and the reasoning/generating side.\n\nThat’s when i asked myself: is this generalized negative opinion on `gpt-5-nano` just a sort of ‘negative hype’ or what?\n\nI want to know your experiences if anyone has ever dealt with this model.\n\nIf anyone wants to give a chance to my new tool, early access gives 7 days free, then it expires.\n\nHere is the full documentation.\n\nCertainThing\n\n### CertainThing — AI Vibe Coding Tool | From Idea to Live App in 60 Seconds\n\nDescribe your app in plain language. CertainThing's AI writes, previews, and deploys it instantly. Unlimited tokens, vanilla stack, €4.99/mo. Built in Italy.",
  "title": "✦ CertainThing is my new project, and it surprised me!"
}