Marketing benchmarks with the receipts attached: real ad costs from accounts we manage and leaderboards computed from public ad-transparency data. Everything is free, ungated, and downloadable. Medians, not means. Sample sizes printed on every table. The method is public — quote these pages freely, with attribution.
Live benchmarks
Real cost per click and cost per conversion on ChatGPT Ads, by vertical, from small-business accounts we run — with the sample size printed next to every figure.
See the numbersWhich US and Canadian brands run the most ads in Europe — a leaderboard computed from Google’s ad-transparency disclosures, with category cuts, format mix, and new entrants.
See the leaderboardSources, aggregation rules, publication gates, revision policy, and license. When a benchmark page and this page disagree, that’s a bug.
Read the methodRelease schedule
Data refreshes on the 1st of each month. Updated editions publish the first Tuesday. Next release: Tuesday, September 1, 2026. Each release updates the tables, the charts, and the downloads below together, from the same build — no page updates without its data files.
Open data
Every published table ships as a download with license and provenance in the file. Reuse requires only attribution and a link (CC BY 4.0).
| Dataset | Edition | Files |
|---|---|---|
| North American brands in Europe — leaderboard, categories, formats, new entrants | August 2026 | CSV · JSON |
| ChatGPT Ads cost by vertical | August 2026 | Download ships with the September edition |
Cite as: Bytown Benchmarks, [month year] — bytown.co/benchmarks. Attribution with a link satisfies the license; screenshots of charts are fine too.
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