ECI reasoning frontier
Epoch AI's scatter plot drew 37.7K views on X: 0.6x its typical post and #69 of 97 Epoch AI charts we track by views. Read Oct 10, 2026.
The Epoch Capabilities Index (ECI) frontier has advanced by 14 points/year since reasoning models were introduced. That compares to six points/year in the non-reasoning era.
Why it spread
This chart post spread because it paired a clear, self-explaining message about the frontier advancing by 14 points per year since reasoning models were introduced, compared with six points per year in the non-reasoning era, with polished design and strong self-labelling, earning 379 likes, 34 reposts, 10 quotes, 83 saves and 37,669 views against an account typical of 114 likes.
What worked
- The post text states the comparison plainly, contrasting 14 points per year with six points per year, so the takeaway is clear without extra context.
- The chart is a scatter with high design polish, high self-labelling and a source line, so it explains itself and feels credible.
- The framing is branded and tied to the Epoch Capabilities Index, which gives the finding a named home and makes it easy to cite.
What to borrow
We could take one of our own time series and frame it as a before-and-after comparison, naming the shift and stating the yearly change in words, then keep the chart self-labelled with a source line so it travels on its own.
Careful
Do not over-read the spread as proofagd of broad reach: the quote rate is below average, comments and points are absent, and the account already sits in the top quarter for source reach, so the result may reflect the account and the topic as much as the chart.
Written by our analysis model from the measured numbers above, not by Epoch AI.
Make it yours
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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 c660e83b9432.
Approximate values. Our two readings of this chart agreed only in part (confidence 0.35 of 1), so check the original before you quote a number. The API marks it lowConfidence, and ?min_confidence=0.5 leaves it out.
| Path | Returns | Plan | |
|---|---|---|---|
| GET | /api/v1/charts/c660e83b9432 | Title, publisher, date, form, point count; with a Max key, the data link | Open |
| GET | /api/v1/charts/c660e83b9432/data | Every point with its provenance and confidence, plus the redraw spec. Add ?format=csv for CSV | Max |
| GET | /api/v1/charts/c660e83b9432/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/c660e83b9432/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 Epoch AI's "ECI reasoning frontier" chart travel?
37,669 views, 379 likes, 34 reposts and 83 saves on X, read Oct 10, 2026. A normal post from @EpochAIResearch gets about 68.2K views.
What kind of chart is it?
A scatter plot. The ECI of reasoning models has advanced rapidly per year.
Can I use Epoch AI's chart?
Use the format, not the picture. The chart, logo and design belong to Epoch AI. ViralChart redraws the chart type with your numbers and words, and credits the original publisher.