GPT training compute
Epoch AI's bar chart drew 245K views on X: 3.6x its typical post and #19 of 97 Epoch AI charts we track by views. Read Oct 10, 2026.
Why did OpenAI train GPT-5 with less compute than GPT-4.5?
Why it spread
It spread because the post asked a sharp question about why OpenAI trained GPT-5 with less compute than GPT-4.5, and the answer about higher returns to post-training gave people a reason to share, with 824 likes, 100 reposts, 31 quotes, 292 saves and 244,966 views.
What worked
- The post opens with a direct question that names two well known models and a surprising comparison, which makes the chart feel like an answer to a real puzzle.
- The chart is a simple bar form showing that GPT-5 is the first mainline release trained with less compute than its predecessor, so the main point is readable at a glance.
- The post is self labelled and branded with a source line, and it came from an independent author, which helped it earn many quotes and an above average quote rate.
What to borrow
We could take a surprising comparison in our own data, lead with the question it raises, and answer it in one clear bar chart with a visible source line and our own branding.
Careful
Do not over-read the spread as proof that the explanation is complete or that the audience agreed, and do not copy the framing without checking that our own data supports the same kind of comparison.
Written by our analysis model from the measured numbers above, not by Epoch AI.
Make it yours
Your numbers, in this bar chart.
Starts from the real numbers of "GPT-5 is the first mainline GPT release to be trained with less compute than its predecess" by Epoch AI. 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 405cb5f17a02.
Approximate values. Our two readings of this chart agreed only in part (confidence 0.44 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/405cb5f17a02 | Title, publisher, date, form, point count; with a Max key, the data link | Open |
| GET | /api/v1/charts/405cb5f17a02/data | Every point with its provenance and confidence, plus the redraw spec. Add ?format=csv for CSV | Max |
| GET | /api/v1/charts/405cb5f17a02/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/405cb5f17a02/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 "GPT training compute" chart travel?
244,966 views, 824 likes, 100 reposts and 292 saves on X, read Oct 10, 2026. A normal post from @EpochAIResearch gets about 68.2K views.
What kind of chart is it?
A bar chart. GPT-5 is first mainline release trained with less compute than predecessor.
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.