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@arenaX · Apr 27, 2026

Expert GPT-5.5: Top 5

@arena's benchmark bar chart drew 59.4K views on X: 1.3x its median post and #495 of 1,162 AI chart posts we hold by views. Read Oct 12, 2026.

XDataBenchmark bar chartClaude Opus 4.6All Anthropic modelsClaude Opus 4.7Gemini-3.1 ProGemini-3 ProGPT-5.4Claude Opus 4.6 (Thinking)Claude Opus 4.7 (Thinking)GPT-5.5 High
Published by @arena on X, Apr 27, 2026. Source: x.com
43/ 100

ViralChart score

Wide but thin

More views than the median post but a lower engagement rate: many saw it, few acted. Common for big accounts.

#722 of 1,162 AI chart posts we hold · #172 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 Wide but thin quadrant, with a score rank of #722 of 1,162 AI chart posts.

Its 0.37% engagement rate sits at the 15th percentile among AI chart posts, below the 0.73% median.

The post landed at #2 of 2 by views among this account's posts that day.

A score of 43 places it at #722 of 1,162 AI chart posts and #172 of 239 @arena posts.

0.25views per follower

59.4K views from an account with 234.1K followers.

bottom 15%engagement rate

0.37% of viewers liked, reposted, quoted or replied. The median post gets 0.73%.

2posts from @arena that day

Part of a run of 2 posts on Apr 27, 2026. This one was #2 of 2 by views that day.

bottom 33%save rate

0.054% 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 #722 of 1,162

Views59.4K#495top 43%
Likes191#659bottom 43%
Engagement rate0.37%#983bottom 15%
Save rate0.054%#775bottom 33%

Among 239 @arena posts

Score #172 of 239

Views59.4K#104top 43%
Likes191#160bottom 33%
Engagement rate0.37%#203bottom 15%
Save rate0.054%#176bottom 27%

Growth

One read so far

Views59.4K
Age at our read168 days
Views per day of life353views 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 · Apr 27, 2026

@arena posts Expert GPT-5.5: Top 5 benchmark bar chart

The chart drew 59.4K views but an engagement rate of 0.37%, below the 0.73% median among AI chart posts.

What happened

On April 27, 2026, @arena published a benchmark bar chart titled Expert GPT-5.5: Top 5. It was one of 2 posts from the account that day, alongside a post on Code GPT-5.5-High Top #9.

The numbers

The post reached 59.4K views, ranking #495 of 1,162 AI chart posts by views. Its score of 43 ranked #722 of 1,162 AI chart posts and #172 of 239 @arena posts.

The lesson

A 15-model benchmark bar chart drew a 0.37% engagement rate, below the 0.73% median among AI chart posts. The chart shows printed values from 1508 to 1545 on an Arena Score axis.

What it means

At #172 of 239 @arena posts, this chart sits below the account's own median performance. The 0.37% engagement rate against the 0.73% median among AI chart posts marks a wide but thin result.

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

  1. Gemma-4-31b Pareto Frontier for Code Arena40.2K views
  2. Proprietary vs Open Frontier Gap5.1K views
  3. Gemma-4 Pareto Frontier for Vision Arena35.5K views
  4. Text Arena Best Models Category Rankings93K views
  5. Code Arena Leaderboard205.1K views
  6. Code Arena Overall Ranking457.1K views

Data and API

17 points read off this chart

Estimated from the image 79%
SeriesGroupValueRead
Claude Opus 4.6 (Thinking)1545 scoreprinted
Claude Opus 4.7 (Thinking)1545 scoreprinted
Claude Opus 4.71543 scoreprinted
Claude Opus 4.71534 scoreestimated
GPT-5.5 High1533 scoreprinted
GPT-5.4 High1523 scoreestimated
Gemini-3.1 Pro1520 scoreprinted
Qwen-3.5 Max1508 scoreprinted
Mimo V2 Pro1505 scoreprinted
Claude Sonnet 4.61505 scoreprinted
Claude Opus 4.5 (Thinking)1505 scoreprinted
Claude Opus 4.51505 scoreprinted

Showing 12 of 17. All points, the redraw and the maker

Max plan · API

GET https://viral-chart.com/api/posts/206541852fbb.json
GET https://viral-chart.com/api/charts/206541852fbb.json
GET https://viral-chart.com/api/charts/206541852fbb.skill.md
Make one like thisOpen the post JSONChart data JSONSkill fileAPI 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 206541852fbb.

See the Max planAPI docs
PathReturnsPlan
GET/api/v1/charts/206541852fbbTitle, publisher, date, form, point count; with a Max key, the data linkOpen
GET/api/v1/charts/206541852fbb/dataEvery point with its provenance and confidence, plus the redraw spec. Add ?format=csv for CSVMax
GET/api/v1/charts/206541852fbb/render?view=1The draw-only view this page usesOpen
POST/mcpTool get_chart_data with this id, for Claude, Cursor and other agentsMax
curlMax
curl -s https://viral-chart.com/api/v1/charts/206541852fbb/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?

@arena published it on Apr 27, 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.