Obsidian vs Roam Research: 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 Obsidian. Ahead in 2 of 2 shared categories 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, Obsidian leads 2 and Roam Research leads 0 across the 2 categories they both appear in. The gap is widest in Note-Taking Apps, where the consensus scores read 71 and 23 on the 0-100 scale, and tightest in Best Note Taking Apps For Students.
Beyond this pairing, Obsidian is ranked in 2 categories and sits at #1 in 1; Roam Research is ranked in 2 categories. 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- #1ObsidianUp 1 from the last closespread 1Claude#2Gemini#1PPLX#1
- #7Roam ResearchNew entry at the last closespread 10Claude#8Gemini#4
On consensus rank, Obsidian leads here, #1 to Roam Research's #7. 71 to 23 on the 0-100 score. Every model that separates the two ranks Obsidian ahead. Obsidian climbed 1 since the last close.
- #4ObsidianNew entry at the last closespread 5Claude#6Gemini#3
- #12Roam ResearchNew entry at the last closespread 10Gemini#9
Obsidian holds the edge in this category, #4 against Roam Research's #12. 29 to 7 on the 0-100 score. No model ranks Roam Research ahead in this category. Obsidian is new to the board at this 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.
Obsidian
My default recommendation for an individual knowledge worker: Obsidian.
ChatGPT
Roam Research
Roam Research – Pioneered the networked-thought/bidirectional-linking approach and is still favored by researchers and writers doing deep knowledge synthesis, though it has a steeper learning curve and higher price.
Claude
Obsidian
Obsidian — Best for serious long-term learners who want to own their files and build a deeply linked personal knowledge base, but it ranks below the top three because the setup and habits take more effort.
ChatGPT
Roam Research
Roam Research: Excellent for networked thought and massive academic research projects, but ranked lower due to its steep learning curve and premium subscription pricing.
Gemini
Where the models split.
Across the 2 categories Obsidian and Roam Research 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 Obsidian ahead at least as often as not, with Claude the most lopsided.
The race is tightest in Note-Taking Apps (6 ranks apart) and widest in Best Note Taking Apps For Students, where Obsidian leads by 8.
- ChatGPTsplit 0-0
- Claudefavors Obsidian 2-0
- Geminifavors Obsidian 2-0
- Perplexityfavors Obsidian 1-0