The best AI assistants for founders

I scored each assistant on five weighted criteria: reasoning quality (weight 3), research and sources (2), ease of use (2), value for money (2) and integrations (1). Every score runs from 0 to 10, and the overall is the weighted sum, so reasoning carries the most because that is the job a founder buys an assistant to do.

Pricing and features were verified against each vendor''s own pages in June 2026 and are written in USD. Where a free tier exists, I said so plainly, and where it is capped or opaque, I said that too.

Honesty note: none of these four pays us a commission , every one carries no affiliate relationship at the time of writing. So nothing here is nudged by money. If that ever changes, the disclosure changes with it, and the ranking does not.

[{"key": "reasoning", "label": "Reasoning quality", "weight": 3}, {"key": "research", "label": "Research & sources", "weight": 2}, {"key": "ease", "label": "Ease of use", "weight": 2}, {"key": "value", "label": "Value for money", "weight": 2}, {"key": "integrations", "label": "Integrations", "weight": 1}]