AI synthetic user research panel for solo SaaS founders

Two things flipped in the last twelve months. First, the credibility problem got a published fix: grounding synthetic personas in real voice-of-customer data with verifiable citations (PersonaCite, arXiv, January 2026) turns 'the AI made it up' into 'here is the support ticket this answer came from'. Second, the incumbents priced themselves out of the small end. Synthetic Users now sells annual plans from $12,500 with per-interview token burn; Aaru and Evidenza are enterprise engagements. Meanwhile Trends.vc's Report #0180 (September 2026) frames synthetic audiences as a market with an empty seat, and Show HN keeps surfacing scrappy attempts (Uxia in September 2025, AI-agent-run interviews in March 2026) that stop at 'contact sales'. The next 12 months are the window where a $39/mo grounded panel can own the 'synthetic user research for founders' query before a funded player ships a starter tier.

Market gap

Synthetic user research has split into two products that both miss the solo SaaS founder. At the top, Synthetic Users ($12,500/yr, annual tokens, brainscan participants), Aaru and Evidenza (enterprise, quoted by discovery call) sell simulated panels to research teams with budgets. At the bottom, free chatbots roleplay customers with no grounding and no citations, which is exactly what NN/G warns produces shallow, overly favorable feedback. Human recruiting sits in the middle at $49 per session (User Interviews) plus incentives, which is fine for a funded team and prohibitive for a pre-revenue founder testing three headlines. The gap is a $39/mo self-serve panel where the founder pastes their own voice-of-customer corpus, gets personas that cite the real quotes they were built from, runs fifty interviews in an evening against a live URL, and sees a confidence label that tells them when to stop and recruit five humans. Uxia and Askpot have circled this lane on Show HN, but both stop at 'contact sales' and neither ships source-cited personas.

Week 1: corpus ingestion (paste, CSV, Gmail label import) + retrieval index, persona generator that must cite 3+ real quotes per trait or refuse. Week 2: interview runner against a URL or pasted copy, objection report, confidence label (share of answers with citations, corpus size, topic coverage), Stripe monthly at $39. Week 3: free Objection Scan lead magnet on the site, launch on r/SaaS, r/startups, and Indie Hackers with the 'grounded vs chatbot' comparison as the hook, DM the Show HN Uxia and Askpot commenters. Week 4-8: SEO pages for 'synthetic user research', 'synthetic users alternative', 'ai user research tool'; Studio tier for agencies; human-handoff screener that drafts a User Interviews recruit brief. Month 3: 150 paid founders, publish a monthly 'synthetic vs real' calibration post comparing panel predictions to founders' actual A/B outcomes to earn the credibility the category lacks.