Startup profile · funding coverage
Probably
AI reliability layer catching factual errors before LLM outputs reach users.
Stage
seed
Status
private
Coverage
full
Why Probably is interesting
Targets 99.99% accuracy bar on smaller models via validator harness over ground-truth datasets.
Key facts
- a16z portfolio status: Active
- Seed (2026): $9M co-led by a16z for AI output validation / hallucination detection (TechCrunch)
- Co-investors: no additional institutional investors disclosed in public sources reviewed 2026-07-24
Investors in our directory
Funds linked from Probably's profile — open a fund page for stage focus and related deal articles.
Industries
Generalist Technology
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Related funding articles
Venture Capital Tracker pieces that cover Probably's financing or category context.
Last updated: 2026-07-24