This product was not featured by Product Hunt yet. It will not be visible on their landing page and won't be ranked (cannot win product of the day regardless of upvotes).
Ask once. GPT-4o, Gemini and Claude answer at the same time — and OneAnswerAI runs a live web search before replying, so the fused answer is grounded in real, current sources instead of outdated training data. Pick the best answer or let it synthesize all three. PDFs, images, 7 languages. Free to try on iOS, no signup.
Hey Product Hunt! Solo dev here, and I'm a little nervous sharing this.
A year ago I caught myself doing something absurd: ChatGPT in one tab, Claude in another, Gemini in a third, pasting the same question into all three and trying to figure out which answer was actually right. So I built an app that does it for me.
OneAnswerAI sends your question to GPT-4o, Gemini and Claude at the same time and fuses the three replies into one answer — either picking the best or synthesizing them.
But the thing I'm most proud of, and the reason I rebuilt half the app this year, is this: it now does a live web search BEFORE answering. Most AI apps (including my first version) just guess from old training data and hand you last year's facts with total confidence — wrong "latest iPhone", outdated prices, last season's news. OneAnswerAI now searches the web in real time, grounds the fused answer in what it actually finds, and shows you the sources. That alone killed most of the hallucinations.
Three things I learned the hard way:
- Fusion can't be summarization. A summary of three answers is worse than any single one — it had to identify what each model got right and resolve the contradictions.
- Knowing when NOT to merge. For a factual/web question, one good grounded answer beats three averaged ones.
- Every query costs me 3-4 API calls, which shaped the entire freemium model.
It's free to try on iOS, no signup. I'd genuinely love your honest feedback — what works, what feels off, what's missing. Solo projects get better because of communities like this one.
How do you actually decide which model's answer wins when I don't pick one — is it just a confidence score or something more nuanced?
How do you handle conflicting answers between the three models when synthesizing them — is there a rubric for picking what to prioritize, or is it more like a majority vote?
How does the fused answer handle cases where the three models strongly disagree, like with subjective or controversial topics? Do you pick a winner automatically or just surface the conflict?
love that it pulls live sources before fusing the answers, that's the smartest guardrail against hallucinations i've seen in a consumer ai app.
About OneAnswerAI on Product Hunt
“3 AIs + live web search, fused into one answer”
OneAnswerAI was submitted on Product Hunt and earned 4 upvotes and 5 comments, placing #159 on the daily leaderboard. Ask once. GPT-4o, Gemini and Claude answer at the same time — and OneAnswerAI runs a live web search before replying, so the fused answer is grounded in real, current sources instead of outdated training data. Pick the best answer or let it synthesize all three. PDFs, images, 7 languages. Free to try on iOS, no signup.
OneAnswerAI was featured in iOS (110.5k followers), Productivity (655.7k followers) and Artificial Intelligence (473.1k followers) on Product Hunt. Together, these topics include over 287.4k products, making this a competitive space to launch in.
Who hunted OneAnswerAI?
OneAnswerAI was hunted by Valentino Paulon. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Valentino Paulon