Head-to-Head Startup Ranking & Discovery
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Opennote

Edtech · US · Early-stage
opennote.com
AI-Enhanced LearningEducationSaaSConsumerProductivity

Opennote is a notebook with an AI thinking partner built in. Feynman lives in your work: it edits your writing, references your knowledge and the web, runs background tasks, and gives feedback as you work.

Founded
2025
Headquarters
San Francisco, CA, USA
Team size
1–10
Stage
Early-stage
📊 Coliseo ratings
🏆 Overall 1488 Elo
1496
💰 Conviction
Provisional
1479
🔥 Momentum
Provisional
1490
🧲 Talent
Provisional
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Ratings are live Elo scores from head-to-head crowd votes — opinion, not fact or financial advice. How it works →