Models
Anthropic
Agent GPT-5.5 Arena Leaderboard

@arenaX · Jun 11, 2026

Agent GPT-5.5 Arena Leaderboard

@arena's benchmark bar chart drew 46.7K views on X: 1.0x its median post and #549 of 1,162 AI chart posts we hold by views. Read Oct 12, 2026.

GPT-5.5 ranks second with 10.6% net improvement

XData Benchmark bar chart Claude Fable 5 All Anthropic models Claude Opus 4.6 Claude Opus 4.7 GLM-5.1 DeepSeek-V4 Pro Gemini-3.1 Pro DeepSeek-V4 FlashClaude Fable 5 (High)Claude Opus 4.8 (Thinking)

@arena: Agent GPT-5.5 Arena Leaderboard — Published by @arena on X, Jun 11, 2026. Source: x.com

62/ 100

ViralChart score

Reached and resonated

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

#419 of 1,162 AI chart posts we hold · #71 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

Reached and resonated: views and engagement rate both at or above the AI chart median, ranked #419 of 1,162.

Its 1.14% engagement rate sits at the 80th percentile, above the 0.73% median for all AI chart posts.

On June 11, 2026, this post ranked #2 of 4 by views that day, level with the account's other posts.

Its score of 62 ranks #419 of 1,162 AI chart posts, above the median for all AI chart posts.

0.20views per follower

46.7K views from an account with 234.1K followers.

4posts from @arena that day

Part of a run of 4 posts on Jun 11, 2026. This one was #2 of 4 by views that day.

top 20%engagement rate

1.14% of viewers liked, reposted, quoted or replied. The median post gets 0.73%.

top 31%save rate

0.113% 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 #419 of 1,162

Views	46.7K	#549	top 47%
Likes	466	#461	top 40%
Engagement rate	1.14%	#235	top 20%
Save rate	0.113%	#361	top 31%

Among 239 @arena posts

Score #71 of 239

Views	46.7K	#119	top 50%
Likes	466	#92	top 38%
Engagement rate	1.14%	#31	top 13%
Save rate	0.113%	#59	top 24%

Growth

One read so far

Views46.7K

Age at our read123 days

Views per day of life380views 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 · Jun 11, 2026

@arena's Agent GPT-5.5 Arena Leaderboard chart draws 46.7K views

A benchmark bar chart with 19 models, posted June 11, 2026, reached 46.7K views.

What happened

@arena posted a benchmark bar chart on Agent GPT-5.5 Arena Leaderboard on June 11, 2026. It came with 3 other posts that day, including a Text-to-Video Leaderboard with 434K views.

The numbers

The post drew 46.7K views, ranking #549 of 1,162 AI chart posts. Its engagement rate was 1.14%, ranking #235 of 1,162.

The lesson

Readers saved this 19-model comparison at 0.11% save rate, below the 0.73% median engagement rate: a wide model list does not boost saves.

What it means

At #71 of 239 @arena posts, this post's score of 62 sits above the account's median engagement rate of 0.68%. The gap to the top is wide.

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

20 points read off this chart

Estimated from the image 90%

Series	Group	Value	Read
Claude Fable 5 (High)	1	12.9 %	printed
Claude Opus 4.8 (Thinking)	2	10.6 %	estimated
GPT-5.5 (xHigh)	3	9.3 %	estimated
Claude Opus 4.7 (Thinking)	4	8.6 %	printed
Claude Opus 4.6	5	8.1 %	printed
GPT-5.5 (High)	6	8.1 %	printed
Claude Opus 4.7	7	7.6 %	printed
GPT-5.4 (High)	8	7.3 %	printed
GPT-5.5	9	7.1 %	printed
Claude Opus 4.8	10	4.8 %	printed
Claude Sonnet 4.6	11	3.4 %	printed
GLM-5.1	12	2.4 %	printed

Showing 12 of 20. All points, the redraw and the maker

Max plan · API

GET https://viral-chart.com/api/posts/51fcb9a8e820.json
GET https://viral-chart.com/api/charts/51fcb9a8e820.json
GET https://viral-chart.com/api/charts/51fcb9a8e820.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 51fcb9a8e820.

See the Max plan API docs

	Path	Returns	Plan
GET	`/api/v1/charts/51fcb9a8e820`	Title, publisher, date, form, point count; with a Max key, the data link	Open
GET	`/api/v1/charts/51fcb9a8e820/data`	Every point with its provenance and confidence, plus the redraw spec. Add ?format=csv for CSV	Max
GET	`/api/v1/charts/51fcb9a8e820/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/51fcb9a8e820/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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