Composer real-time RL reward
Cursor's line chart drew 512.4K views on X: 6.8x its typical post and #10 of 22 Cursor charts we track by views. Read Oct 10, 2026.
Earlier this week, we published our technical report on Composer 2.
Why it spread
The post spread because it combined launch timing with a chart showing Composer steadily improving through real-time reinforcement learning, and it drew 1,619 likes, 130 reposts, 105 quotes, 498 saves and 512,397 views, which is 1.9x the account's typical likes of 858.
What worked
- The chart's message matched the post text about shipping improved checkpoints every five hours, so the visual and the copy reinforced each other.
- The quote rate landed in the top quarter, and the 105 quotes show the chart gave people something to react to and discuss.
- The source reach was in the top quarter, and the 512,397 views plus 498 saves show the chart traveled well beyond the account's usual audience.
What to borrow
We could pair a simple line chart of steady improvement with a plain launch announcement, and time the release to a moment when our audience is already paying attention.
Careful
Do not over-read the low design polish and low self-labelling as the cause, and do not assume the same timing will work for every chart we post.
Written by our analysis model from the measured numbers above, not by Cursor.
Make it yours
Your numbers, in this line chart.
Starts from the real numbers of "Composer steadily improves through real-time RL" by Cursor. Replace every number with yours before you post. Make one like this, step by step
Free pictures carry a small "Made with ViralChart" line. That line is how other people find us.
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 b195bbaa94cb.
Approximate values. Our two readings of this chart agreed only in part (confidence 0.30 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/b195bbaa94cb | Title, publisher, date, form, point count; with a Max key, the data link | Open |
| GET | /api/v1/charts/b195bbaa94cb/data | Every point with its provenance and confidence, plus the redraw spec. Add ?format=csv for CSV | Max |
| GET | /api/v1/charts/b195bbaa94cb/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/b195bbaa94cb/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 Cursor's "Composer real-time RL reward" chart travel?
512,397 views, 1,619 likes, 130 reposts and 498 saves on X, read Oct 10, 2026. A normal post from @cursor_ai gets about 75.6K views.
What kind of chart is it?
A line chart. Composer steadily improves through real-time reinforcement learning.
Can I use Cursor's chart?
Use the format, not the picture. The chart, logo and design belong to Cursor. ViralChart redraws the chart type with your numbers and words, and credits the original publisher.