
Probably
Accuracy over vibes.
San Francisco, United States · Founded 2025 · $9.0M raised
- Headquarters
- San Francisco
- Employees
- 1–10
- Founded
- 2025
- Business Model
- B2B
- Website
- probably.ai
- Total Funding
- $9.0M
- Last Round
- $9.0M SeedJun 2026
- Rounds
- 1
About
Probably is an AI reliability startup building deterministic validators that check LLM outputs against source data before reaching users, targeting 99.99% accuracy for precision-sensitive applications. The company raised $9M seed from a16z and Accel.
Summary
Probably is an Artificial Intelligence company based in San Francisco, United States, founded in 2025. It has raised $9.0M in total across 1 round, most recently a $9.0M Seed round in Jun 2026. Investors include Andreessen Horowitz.
Tech & App Stack
4 technologies & apps tracked
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Funding History
Jun 2026
Investors
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