AI impact on developers
METR's annotated chart drew 3.7M views on X: 24x its typical post and #2 of 26 METR charts we track by views. Read Oct 10, 2026.
We ran a randomized controlled trial to see how much AI coding tools speed up experienced open-source developers.
Why it spread
The post spread because it paired a surprising reversal, developers thought they were 20% faster with AI tools but were actually 19% slower, with strong engagement of 6,627 likes, 1,275 reposts, 1,005 quotes, 3,278 saves and 3,724,716 views, and the quote rate landed in the top quarter.
What worked
- The headline finding is a clean contradiction: a perceived 20% speedup against a measured 19% slowdown, which is easy to repeat and argue about.
- It is framed as a randomized controlled trial on experienced open-source developers, so the claim reads as evidence rather than opinion.
- The post is self contained, with the method and the result stated in the text, and it carries a source line and branding, which helps it travel without losing attribution.
What to borrow
We can use the same form by leading with the gap between what people believed and what we measured, then stating the method in one plain sentence before the numbers, and letting the chart carry the reversal.
Careful
Do not over read a single study as a general law about AI and productivity, and do not copy the confident tone without the same randomized design and source line behind it.
Written by our analysis model from the measured numbers above, not by METR.
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API · Max
Use this chart via API
On the Max plan you can pull this chart's numbers with the provenance of each one, as JSON or CSV, with its redraw spec, or call it from an agent over MCP. Chart id 80a717ad79a1.
| Path | Returns | Plan | |
|---|---|---|---|
| GET | /api/v1/charts/80a717ad79a1 | Title, publisher, date, form, point count; with a Max key, the data link | Open |
| GET | /api/v1/charts/80a717ad79a1/data | Every point with its provenance and confidence, plus the redraw spec. Add ?format=csv for CSV | Max |
| GET | /api/v1/charts/80a717ad79a1/render?view=1 | The draw-only view this page uses | Open |
| POST | /mcp | Tool get_chart_data with this id, for Claude, Cursor and other agents | Max |
curl -s https://viral-chart.com/api/v1/charts/80a717ad79a1/data \
-H "Authorization: Bearer $VIRALCHART_KEY"claude mcp add --transport http viralchart https://viral-chart.com/mcp \
--header "Authorization: Bearer $VIRALCHART_KEY"60 requests a minute per key; over that you get 429 with Retry-After. Up to 5 keys per account, made on your account page and shown once. Without Max, the data route answers 402 with a link to the plans. The numbers describe a chart its publisher owns, and every file carries a license note.
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Questions people ask
How far did METR's "AI impact on developers" chart travel?
3,724,716 views, 6,627 likes, 1,275 reposts and 3,278 saves on X, read Oct 10, 2026. A normal post from @METR_Evals gets about 153K views.
What kind of chart is it?
A annotated chart. AI slows down experienced open-source developers against forecasts.
Can I use METR's chart?
Use the format, not the picture. The chart, logo and design belong to METR. ViralChart redraws the chart type with your numbers and words, and credits the original publisher.