Sun is a voice first AI model built specifically for real‑time collaborative voice interaction, not just one‑on‑one chat. ChatGPT Realtime and Gemini Live were built for one user talking to AI. Sun is built for collaboration — meetings, group calls, multi-agent debates, classrooms. One API, multi-speaker awareness, 10× the context window.
Hey Product Hunt 👋 I'm Anand, co-founder of Sun (https://getsun.io).
Every realtime voice API today — OpenAI Realtime, Gemini Live, Hume — was built for one user talking to one AI. That breaks the moment a third voice enters the room. Sales calls, classroom debates, multi-agent workflows, group brainstorms — they all need voice infra that knows who's talking, when to interrupt, and how to let three speakers share a turn.
🌞 Sun is built for that:
• Multi-speaker turn-taking
• 10× the context window of ChatGPT Realtime and Gemini Live
• Agent-aware barge-in (not just VAD)
• Multi-agent in one room — run two AIs against each other on a real audio channel
Today's PH offer:
• Live playground — try it in your browser, no Credit Card → https://getsun.io
• Live demo at https://demo.getsun.io
Two things I'd love your help with:
1. Tell me where this breaks. We've stress-tested ~20 multi-speaker apps; we want yours to be #21.
2. What integrations would unlock you? LiveKit, Daily, Vonage, Twilio, custom WebRTC — drop a comment.
Huge thanks to Anoop for hunting. Happy to answer anything in the comments today. 🌞
The classroom use case is the one that caught my attention. An AI that can follow multiple speakers and participate at the right moment could be genuinely useful during group discussions.
Have you tested it with actual teachers or students yet? I'd be curious to hear how it performs in a real classroom setting.
Congrats on the launch!
The "when to interrupt" part is exactly where most voice infra falls down. I'm building voice AI for older adults, and barge-in plus handling slow or overlapping speech is the hardest piece, models either talk over people or freeze. Curious how Sun handles turn-taking when speakers have very different pacing, and whether latency holds up with 4-5 voices in the room?
In the playground, there is a trigger words list. Why is it there even though there is already agent name field ? Is it for alternate names ?
Can we add or give information to the agent mid-session? Or is it possible only at the beggining of the session?
So, is this like speech engine for note takers like otter or fireflies ? like making them talk back. fireflies does that now, but it takes forever to make it work.
how does it know when to interrupt and when to not? Also, is there way to make it speak only when explicitly asked?
Does it mean that by using this, we can make our internal meeting agent talk in meetings about what is happening in meetings ? Like talking fireflies or otter ?
About Sun on Product Hunt
“Collaborative voice API for agents ”
Sun launched on Product Hunt on June 4th, 2026 and earned 103 upvotes and 19 comments, placing #14 on the daily leaderboard. Sun is a voice first AI model built specifically for real‑time collaborative voice interaction, not just one‑on‑one chat. ChatGPT Realtime and Gemini Live were built for one user talking to AI. Sun is built for collaboration — meetings, group calls, multi-agent debates, classrooms. One API, multi-speaker awareness, 10× the context window.
Sun was featured in Meetings (6.5k followers), Developer Tools (514k followers) and Artificial Intelligence (471k followers) on Product Hunt. Together, these topics include over 175.3k products, making this a competitive space to launch in.
Who hunted Sun?
Sun was hunted by Anand B. 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.
Want to see how Sun stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Anand B