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Pareto Frontier for Agent Arena

@arenaX · Sep 2, 2026

Pareto Frontier for Agent Arena

@arena's line chart drew 50.7K views on X: 1.1x its median post and #533 of 1,162 AI chart posts we hold by views. Read Oct 12, 2026.

XData Line chart Gemini 3 All Google models Kimi K3Claude Opus 5 (High)Claude Fable 5 (High)GPT 5.6 Sol (xHigh)Gemini 3.8 Flash (High)Grok 4.5GLM 5.2 (Max)GLM 5.3 Flash

@arena: Pareto Frontier for Agent Arena — Published by @arena on X, Sep 2, 2026. Source: x.com

60/ 100

ViralChart score

Reached and resonated

More views and a higher engagement rate than the median post: it travelled and people acted on it.

#455 of 1,162 AI chart posts we hold · #86 of 239 @arena 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

The post sits in the Reached and resonated quadrant, with a score rank of #455 of 1,162 AI chart posts.

Its 1.00% engagement rate sits at the 73rd percentile among AI chart posts, 1.4x the 0.73% median.

The post ranks #455 of 1,162 AI chart posts by score, above the median.

On a day with 6 posts from this account, it ranked #5 of 6 by views.

6posts from @arena that day

Part of a run of 6 posts on Sep 2, 2026. This one was #5 of 6 by views that day.

0.22views per follower

50.7K views from an account with 234.1K followers.

top 27%engagement rate

1.00% of viewers liked, reposted, quoted or replied. The median post gets 0.73%.

top 34%save rate

0.106% of viewers bookmarked it to come back to. The median post gets 0.076%.

Public X numbers from our read on Oct 12, 2026. Peers: 1,162 AI chart posts we hold and 239 from @arena.

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 #455 of 1,162

Views	50.7K	#533	top 46%
Likes	448	#477	top 41%
Engagement rate	1.00%	#315	top 27%
Save rate	0.106%	#393	top 34%

Among 239 @arena posts

Score #86 of 239

Views	50.7K	#114	top 47%
Likes	448	#96	top 40%
Engagement rate	1.00%	#44	top 18%
Save rate	0.106%	#68	top 28%

Growth

One read so far

Views50.7K

Age at our read40 days

Views per day of life1.3Kviews divided by days since it was posted

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

@arena'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 · Sep 2, 2026

@arena posts Pareto Frontier for Agent Arena line chart

The chart shows a Pareto frontier for Agent Arena, with 11 models and a 1.00% engagement rate.

What happened

@arena posted a line chart titled Pareto Frontier for Agent Arena on September 2, 2026. It came with 5 other posts from the account that day, including Code Arena: WebDev Leaderboard and Agent Arena 3.8 Flash Ranked #14.

The numbers

The post reached 50.7K views, ranking #533 of 1,162 AI chart posts by views. Its score of 60 placed it at #455 of 1,162 AI chart posts and #86 of 239 @arena posts.

The lesson

A line chart with 11 models and a 1.00% engagement rate drew 50.7K views, 1.4x the AI median engagement. The chart shows a Pareto frontier, and the save rate was 0.11%.

What it means

At #86 of 239 @arena posts, this chart post sits below the account's top tier. The 1.00% engagement rate is above the 0.73% AI median, but the 50.7K views are below the 39.9K median for AI chart posts.

Written by ViralChart from public numbers read on Oct 12, 2026. Every number is checked against our data before it is shown.

Updates: what @arena posted next

Data and API

1 points read off this chart

Estimated from the image 97%

Series	Group	Value	Read
	Claude Opus 5 (High)	5.94 %	printed

Max plan · API

GET https://viral-chart.com/api/posts/231695814ac2.json
GET https://viral-chart.com/api/charts/231695814ac2.json
GET https://viral-chart.com/api/charts/231695814ac2.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 231695814ac2.

See the Max plan API docs

	Path	Returns	Plan
GET	`/api/v1/charts/231695814ac2`	Title, publisher, date, form, point count; with a Max key, the data link	Open
GET	`/api/v1/charts/231695814ac2/data`	Every point with its provenance and confidence, plus the redraw spec. Add ?format=csv for CSV	Max
GET	`/api/v1/charts/231695814ac2/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/231695814ac2/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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