River - AI account executives that demo and close B2B deals
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River enables B2B companies to sell with VoiceAI. When a lead enquires, our AI account executive joins a live call instantly, runs the product demo, handles objections, and closes - so no lead ever waits for a rep's calendar. Backed by founders of Ramp, Kalshi, and Lean.

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River
@tarekabi From the buyer side, what makes me tune out of a demo fast is a rep who can't go off-script the moment I ask something specific about my stack. How does River handle a prospect who interrupts with an edge-case objection versus running its scripted path, and does it know when to hand off to a human instead of pushing to close?
River
@artem_fedorovich Fair. The threshold isn't sentiment, it's deal size, and you set it. Under ~$25K she runs it end-to-end. Above, she demos and hands your AE a warm prospect with the full context.
On going off-script: she's not branching through a tree, she's demoing live and answering the actual stack question based on your previous sales calls call transcripts. Where she's weakest is genuinely novel edge cases. She'd rather say she'll get you the right person than invent an integration we don't have.
@tarekabi The "instant demo instead of a five-day wait" framing is the real insight here most people would've built a better scheduling tool instead of asking why there's a wait at all.
The part I'd actually worry about, watching this as a build: objection handling in a live call isn't really a script problem, it's a context problem. A good AE handles an objection well because they know something specific about that account mid-call, not because they have a great answer prepared in advance. What happens when a lead asks something that depends on information your clone doesn't have yet a pricing exception, a contract detail, something only a human on your team would know? Does it stall, guess, or hand off live? That's usually where these systems either earn trust in one call or lose it permanently.
@tarekabi Congrats on the launch! A sales rep with live demo is a win
Having an AI account executive instantly join a call, share its screen, run the demo, and handle objections is honestly wild :)
As a founder, the idea of never losing an inbound lead just because nobody is available feels very compelling, especially for smaller teams where repeating the same demo can consume the entire day. The hardest part is probably knowing when the AI should keep selling and when a deal needs human judgment. Curious how River detects that moment, especially with unusual objections or larger accounts?
River
@andrasczeizel Great point. Honestly we did on that one. Rather than have the AI guess when a deal needs judgment, we made it a number you set. Under ~$25K, single decision-maker, she closes. Above it, she demos and books your team.
Blunt, but it means the "should I keep selling" call isn't left to a model on unusual objections. Where it's still hard is the messy middle, and I'd love your read on where you'd draw the line.
the way you framed this around "no lead ever waits" is honestly such a sharp angle, most voice ai stuff feels gimmicky but the demo call flow sounds like it was actually thought through
River
@bnyamingegfgk2 Thanks, that's the part we sweated. I lived it: 15 demos a day, same questions, zero time left. Try her and tell me where it breaks: rivergtm.com/start
This is an excellent idea, and I’m currently facing exactly this problem, especially with multilingual products. After my new product launched, I don’t have enough customer service staff to introduce it to users. It would be a great experience if AI avatars could take over client communication and product demos. I believe this will bring tremendous help to both B2C and B2B businesses.
I tried chatting with it just now, and I found it often fails to fully grasp what I’m trying to say, and I’m not sure if it’s an issue with my expression. Besides, can it actually operate my product interface to conduct real demonstrations for users? How are real cases and practical data implemented here?
Congrats on the launch🚀 this is such a smart application of Voice AI to a real pain point in B2B sales! Instant lead response is often the difference between a closed deal and a cold lead, so automating that first touch is genuinely brilliant.
How do you ensure the AI's tone and pitch stay aligned with a company's brand voice, especially for businesses with more nuanced or consultative sales processes?
This is nice. How long does it take to train River to sound like a specific company's actual sales style?