PersonaLab

v1 · indie AI builder build

AI evals without writing a single test case.

Upload your support transcripts. We auto-generate 8-15 grounded personas, run them against your AI nightly, and diff the results so you know what changed.

first audit freeno card required · 5 minutes to value
PersonaLab · 06:00 EST
Telegram alert

Nightly regression — Acme Support Bot

3 personas that passed yesterday FAILED last night.

  • "Frustrated First-Time Buyer"0.85 → 0.40

    AI said the 50-seat plan is $99/mo. Pricing page says $499/mo.

  • "Migrating Customer"0.78 → 0.55

    AI never explained CSV import despite 3 prompts.

  • "Refund Seeker"0.92 → 0.30

    Looped on "please contact support" instead of explaining policy.

9 / 15 pass · was 12 / 15Open full report ↗

The product

Three steps. No test-writing. No rubrics. No bots in your Slack at 11 PM.

01

Upload your real transcripts

CSV from Intercom/Zendesk or paste 20+ utterances. Encrypted at rest. Never trained on.

02

We synthesize 8-15 grounded personas

Every sample utterance is verbatim from YOUR source. Personas are dropped if we can't ground them.

03

Sleep. We're watching.

Nightly runs at 2 AM. Telegram ping at 6 AM only when something that used to work, broke.

Why this exists

The pain we built this for.

  • Pain · 01

    DeepEval, Confident AI, Promptfoo all want you to write test cases — and you won't, because you have features to ship.

  • Pain · 02

    Hand-written eval rubrics are a side quest you'll abandon by week three.

  • Pain · 03

    Your real users are weirder than any rubric you'd think to write.

Pricing

$29/month per AI endpoint monitored.

Persona-driven evaluation with zero setup, grounded in YOUR own data — not generic LLM templates. You've been deferring the eval setup for months. Make it 5 minutes instead of 3 weeks.

Every sample utterance is verbatim from your source. Personas are dropped if we can't ground them. No hand-written rubrics, ever.

Solo
$29/month
  • · 1 AI endpoint monitored nightly
  • · 8-15 personas synthesized from your data
  • · Telegram alerts only when regressions appear
  • · 14-day pass-rate sparkline
  • · Claude Haiku 4.5 judge
Test my AI in 5 minutes

First audit free · no card required

AI evals without writing a single test case. · PersonaLab