Heptabase vs Tana: what AI actually recommends
The same buying questions, run after run, to ChatGPT, Claude, Gemini, and Perplexity: the record of which of these two they name first. No opinions, no scores we invented: what the models said.
AI currently favors Tana. Ahead in 1 of 1 shared category on consensus rank.
That is the latest close, not a verdict for all time. The model-by-model board below shows where they agree, where they split, and how both brands moved.
At the latest close, Heptabase leads 0 and Tana leads 1 across the 1 category they both appear in.
Beyond this pairing, Heptabase is ranked in 1 category; Tana is ranked in 1 category. The board below is the shared slice, where the four models place these two side by side.
The record, category by category.
Consensus rank · latest close- #12TanaDown 3 from the last closespread 10PPLX#6
- #14HeptabaseNew entry at the last closespread 10PPLX#9
On consensus rank, Tana leads here, #12 to Heptabase's #14. 11 to 7 on the 0-100 score. Every model that separates the two ranks Tana ahead. Tana slipped 3 since the last close.
What the models actually said.
The ranking is the answer; these are the words behind it. Every quote is from a recorded model answer — follow the category to read it whole.
Heptabase
Heptabase — A strong niche pick for research-heavy work and card-based thinking, especially for literature review and synthesis.
Perplexity
Tana
Tana — Best for power users who think in outlines and want structured, queryable meeting and project information, but its supertags-and-fields model is too opinionated for most people.
ChatGPT
Where the models split.
Across the 1 category Heptabase and Tana both appear in, the models never break ranks: in each one, the same brand leads on ChatGPT, Claude, Gemini, and Perplexity alike.
No model runs against the grain here: each of the four ranks Tana ahead at least as often as not, with Perplexity the most lopsided.
- ChatGPTsplit 0-0
- Claudesplit 0-0
- Geminisplit 0-0
- Perplexityfavors Tana 1-0