Mercury vs Relay: 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 Mercury. 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, Mercury leads 1 and Relay leads 0 across the 1 category they both appear in.
Beyond this pairing, Mercury is ranked in 2 categories and sits at #1 in 1; Relay 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- #1MercuryNo change from the last closespread 0Gemini#1
- #3RelayUp 5 from the last closespread 2Gemini#3
On consensus rank, Mercury leads here, #1 to Relay's #3. 25 to 18 on the 0-100 score. Every model that separates the two ranks Mercury ahead.
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.
Mercury
Mercury — My default for a software/VC-backed startup because it has the cleanest founder experience for operating cash, payments, cards, and treasury, with no-fee accounts and up to $5 million in FDIC coverage through partner-bank sweeps.
ChatGPT
Relay
Relay — Best for bootstrapped, agency, e-commerce, or operationally complex startups that need to partition money rigorously, since it supports up to 20 checking accounts, team cards/controls, and up to $3 million in FDIC coverage through Thread Bank.
ChatGPT
Where the models split.
Across the 1 category Mercury and Relay 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 Mercury ahead at least as often as not, with Gemini the most lopsided.
- ChatGPTsplit 0-0
- Claudesplit 0-0
- Geminifavors Mercury 1-0
- Perplexitysplit 0-0