Real-Time AI Sales Engineer That Answers Technical Questions on Sales Calls
Desktop app that listens to a seller's call, spots technical questions and shows a short answer from the seller's own product documents.
In plain English
DeltaGen helps salespeople who get hard technical questions on calls. The app listens on the seller's own computer, notices a tricky question, and shows a short answer taken from the company's own product documents. Each answer shows where it came from so the seller can trust it. Companies pay a yearly subscription.
$120K yearly recurring revenue (company press release, Nov 2025)
Operator: Rene Bystron (co-founder and CEO)
A named, real operator ran this and shared results publicly. The figures are their own.
Not disclosed.
The tool stack
Payments
Whisper ↗Speech-to-text
OpenAI API ↗LLM / vision
Prices are the vendors' published list prices as researched in Oct 2026 and change often — always check the vendor's pricing page.
Step-by-step setup
- Load the seller's product docs, specs and past answers.
- Transcribe the call live and detect technical questions.
- Show a short, sourced answer on screen for the rep to use in their own words.
- Sell yearly team plans to companies with complex products.
What's automated vs. the human 20%
The machine does
- Core AI generation/analysis
- Billing and onboarding
You still do
- Product quality and support
- Distribution and marketing
- Compliance and edge cases
Overview
Desktop app that listens to a seller’s call, spots technical questions and shows a short answer from the seller’s own product documents.
Operator: Rene Bystron (co-founder and CEO). Website: https://deltagen.ai/
Estimated split: about 80% of the work automated, 20% human.
Realistic income
DeltaGen’s November 2025 press release said its Virtual SE product reached $120,000 in yearly recurring revenue during a 60-day early-access program, built by a 5-person team. Pilot contracts may be included. This figure is operator-reported, not independently verified. This is one operator’s result, often after months or years of work, and doesn’t predict yours. Check the live source — numbers change.
Risks
- The $120K yearly figure comes from the company’s own press release during a pilot program.
- Recording calls needs consent from everyone on the call in many places.
- Wrong technical answers can damage a deal.
- Startup cost and time to first dollar are not disclosed.
*Income figures are illustrative ranges based on public pricing and typical outcomes reported by practitioners, not guarantees. Most new online businesses earn little or nothing at first. Not financial, legal or tax advice.
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