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- Artificial Analysis
- AI hallucination rates
AI hallucination rates
Artificial Analysis's benchmark bar chart drew 916.2K views on X: 17x its typical post and #4 of 123 Artificial Analysis charts we track by views. Read Oct 12, 2026.
Today we are announcing Harvey LAB-AA v1.1 in collaboration with Harvey. This updates our scoring methodology for the Legal Agent Benchmark (LAB) to add a hallucination check and require correct responses to not include material misstatemen
Why it spread
The post spread because it announced a new benchmark version with a hallucination check from an independent author, drawing 484 likes, 41 reposts, 51 quotes, 133 saves and 872,361 views, with a quote rate in the top quarter and source reach in the top quarter.
What worked
- The chart type of benchmark bars made a technical methodology update easy to compare across AI models and tasks.
- The post framed the release as a collaboration and a versioned update, which gave the audience a clear reason to share and quote it.
- The independent author status plus the branded presentation helped the chart travel beyond a single company audience.
What to borrow
We could release our own charts as a named, versioned benchmark update with a clear headline metric and a simple bar comparison across models or tasks.
Careful
Do not over-read the high views as proof that the chart design alone drove the spread, since the quote rate and independent author status also mattered and no comment or points data is available.
Written by our analysis model from the measured numbers above, not by Artificial Analysis.
Make it yours
Your numbers, in this grouped bar chart.
Starts from the real numbers of "Harvey LAB-AA v1.1: Hallucination - Gated All-Pass Rate" by Artificial Analysis. 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 0098d56e1e3a.
| Path | Returns | Plan | |
|---|---|---|---|
| GET | /api/v1/charts/0098d56e1e3a | Title, publisher, date, form, point count; with a Max key, the data link | Open |
| GET | /api/v1/charts/0098d56e1e3a/data | Every point with its provenance and confidence, plus the redraw spec. Add ?format=csv for CSV | Max |
| GET | /api/v1/charts/0098d56e1e3a/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/0098d56e1e3a/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 Artificial Analysis's "AI hallucination rates" chart travel?
916,236 views, 510 likes, 42 reposts and 135 saves on X, read Oct 12, 2026. A normal post from @ArtificialAnlys gets about 54.2K views.
What kind of chart is it?
A benchmark bar chart. Hallucination rates vary across AI models and tasks.
Can I use Artificial Analysis's chart?
Use the format, not the picture. The chart, logo and design belong to Artificial Analysis. ViralChart redraws the chart type with your numbers and words, and credits the original publisher.