Models
OpenAI
Harvey LAB-AA material hallucinations: GPT-6 Sol vs Luna

@ArtificialAnlysX · Oct 8, 2026

Harvey LAB-AA material hallucinations: GPT-6 Sol vs Luna

@ArtificialAnlys's table chart drew 2.5K views on X: 0.2x @artificialanlys's median post and #1,052 of 1,162 AI chart posts we hold by views. Read Oct 13, 2026.

Material hallucination comparison across six AI models

XData Table chart GPT-6 All OpenAI models GPT-6 Sol GPT-6 LunaGrok 4.7Claude Opus 5.5Claude Sonnet 5.5Gemini 3.8 Flash

@ArtificialAnlys: Harvey LAB-AA material hallucinations: GPT-6 Sol vs Luna — Published by @ArtificialAnlys on X, Oct 8, 2026. Source: x.com

30/ 100

ViralChart score

Small but loved

Fewer views than the median post but a higher engagement rate: a smaller crowd that acted on it.

#917 of 1,162 AI chart posts we hold · #310 of 491 @artificialanlys posts. Score = views 40%, likes 30%, engagement rate 15%, save rate 15%, each as a percentile of every AI chart post we hold.

Our read

Small but loved: views below the AI chart median, engagement rate at or above it, at #917 of 1,162 AI chart posts.

At 2.5K views, the post sits at 0.22x @ArtificialAnlys's median of 11.4K views.

It ranked #6 of 18 posts from this account that day, a level showing against the day's field.

Its score of 30 lands at #917 of 1,162 AI chart posts, below the field.

0.0xthe median table chart post

Across 95 table chart posts we hold, the median gets 133.2K views.

0.2x@artificialanlys's median post

2.5K views, where @artificialanlys's typical post gets 11.4K.

18posts from @artificialanlys that day

Part of a run of 18 posts on Oct 8, 2026. This one was #6 of 18 by views that day.

top 28%engagement rate

0.99% of viewers liked, reposted, quoted or replied. The median post gets 0.73%.

Public X numbers from our read on Oct 13, 2026. Peers: 1,162 AI chart posts we hold and 491 from @artificialanlys.

Where it sits

Reach against resonance

Each dot is a post. Right is more views, up is a higher engagement rate. The lines are the medians, so the four corners are the four kinds of post.

Among 1,162 AI chart posts we hold

Score #917 of 1,162

Views	2.5K	#1,052	bottom 10%
Likes	23	#997	bottom 14%
Engagement rate	0.99%	#321	top 28%
Save rate	0.118%	#339	top 29%

Among 491 @artificialanlys posts

Score #310 of 491

Views	2.5K	#416	bottom 15%
Likes	23	#369	bottom 25%
Engagement rate	0.99%	#170	top 35%
Save rate	0.118%	#162	top 33%

Growth

Our reads cover 26 hours

Views2.5K

Age at our read5 days

Views per day of life512views divided by days since it was posted

Gained between our reads+38views over 26 hours, about 35 a day now

Dots are our reads. The dotted line from the day it was posted to our first read is a gap, not data.

@artificialanlys's posts over time

Every post from this account we hold, by date and views. This one is marked; the line is the running median of the last 10.

News · Oct 8, 2026

@ArtificialAnlys posts material hallucination table for six models

A table chart on material hallucinations per task drew 2.5K views and a 0.99% engagement rate, ranking #6 of 18 posts that day.

What happened

@ArtificialAnlys posted a table chart on October 8, 2026 comparing material hallucinations across six AI models. It was one of 18 posts from the account that day, alongside the Artificial Analysis Cyber Index v1 at 44.4K views.

The numbers

The post reached 2.5K views, ranking #1,052 of 1,162 AI chart posts and #416 of 491 @ArtificialAnlys posts. Its score of 30 ranked #917 of 1,162 AI chart posts and #310 of 491 @ArtificialAnlys posts.

The lesson

A table chart with 6 models shown drew 2.5K views, 0.22x @ArtificialAnlys's median of 11.4K. The 0.99% engagement rate against a 0.12% save rate shows readers engaged without saving.

What it means

At #310 of 491 @ArtificialAnlys posts by score, this table chart sits below the account's own median. The 2.5K views against a 39.9K median among AI chart posts mark a wide gap in reach.

Written by ViralChart from public numbers read on Oct 13, 2026. Every number is checked against our data before it is shown.

Updates: what @artificialanlys posted next

Data and API

66 points read off this chart

Estimated from the image 66%

Series	Group	Value	Read
GPT-6 Sol	GPT-6 Astra (max)	0 hallucinations per task	estimated
GPT-6 Luna	GPT-6 Astra (max)	0 hallucinations per task	estimated
Grok 4.7	GPT-6 Astra (max)	0 hallucinations per task	estimated
Claude Opus 5.5	GPT-6 Astra (max)	0 hallucinations per task	estimated
Claude Sonnet 5.5	GPT-6 Astra (max)	0 hallucinations per task	estimated
Gemini 3.8 Flash	GPT-6 Astra (max)	0 hallucinations per task	estimated
GPT-6 Sol	GPT-6 Sol (max)	0.15 hallucinations per task	estimated
GPT-6 Luna	GPT-6 Sol (max)	0.1 hallucinations per task	estimated
Grok 4.7	GPT-6 Sol (max)	0.2 hallucinations per task	estimated
Claude Opus 5.5	GPT-6 Sol (max)	0 hallucinations per task	estimated
Claude Sonnet 5.5	GPT-6 Sol (max)	0 hallucinations per task	estimated
Gemini 3.8 Flash	GPT-6 Sol (max)	0 hallucinations per task	estimated

Showing 12 of 66. All points, the redraw and the maker

Max plan · API

GET https://viral-chart.com/api/posts/a974cd0d119d.json
GET https://viral-chart.com/api/charts/a974cd0d119d.json
GET https://viral-chart.com/api/charts/a974cd0d119d.skill.md

Make one like this Open the post JSON Chart data JSON Skill file API docs

Static files in this prototype. The post JSON holds the public numbers, ranks, score, quadrant, our reads and, when checked, our copy.

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 a974cd0d119d.

See the Max plan API docs

	Path	Returns	Plan
GET	`/api/v1/charts/a974cd0d119d`	Title, publisher, date, form, point count; with a Max key, the data link	Open
GET	`/api/v1/charts/a974cd0d119d/data`	Every point with its provenance and confidence, plus the redraw spec. Add ?format=csv for CSV	Max
GET	`/api/v1/charts/a974cd0d119d/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

curlMax

curl -s https://viral-chart.com/api/v1/charts/a974cd0d119d/data \
  -H "Authorization: Bearer $VIRALCHART_KEY"

Claude CodeMax

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

Where does this chart come from?

@ArtificialAnlys published it on Oct 8, 2026 on X (x.com). We keep it here, with the publisher and date credited as text, so you can study it without leaving.

Can I make a chart like this?

Use the format, not the picture. Open its data page and use Make one like this: it starts from this chart's numbers and takes yours.