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OpenAIX · May 5, 2026 · official

GPT-5.5 Instant STEM Performance

OpenAI's grouped bar chart drew 147.3K views on X: 0.9x its median post and #316 of 1,162 AI chart posts we hold by views. Read Oct 13, 2026.

GPT-5.5 Instant: a step up in STEM

XDataGrouped bar chartGPT-5All OpenAI modelsGPT-5.3 InstantGPT-5.5 Instant
Published by OpenAI on X, May 5, 2026. Source: x.com
67/ 100

ViralChart score

Reached and resonated

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

#293 of 1,162 AI chart posts we hold · #27 of 74 OpenAI 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 #293 of 1,162.

Its views-per-follower of 0.027 sits at the 17th percentile, below the 0.20 median across posts with known followers.

Its score of 67 ranks #293 of 1,162 AI chart posts, above the median for all AI chart posts.

With 2 charts in the post, every chart shares the post's numbers, a level factor for multi-chart posts.

0.03views per follower

147.3K views from an account with 5.4M followers.

2charts in this one post

The numbers belong to the post, so every chart in it shares them and it is ranked once.

bottom 28%save rate

0.049% of viewers bookmarked it to come back to. The median post gets 0.076%.

top 33%engagement rate

0.91% 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 74 from OpenAI.

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 #293 of 1,162

Views147.3K#316top 27%
Likes1.2K#230top 20%
Engagement rate0.91%#382top 33%
Save rate0.049%#841bottom 28%

Among 74 OpenAI posts

Score #27 of 74

Views147.3K#40bottom 47%
Likes1.2K#25top 33%
Engagement rate0.91%#10top 13%
Save rate0.049%#37top 49%

Growth

Our reads cover 28 hours

Views147.3K
Age at our read161 days
Views per day of life914views divided by days since it was posted
Gained between our reads+6views over 28 hours, about 5 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.

OpenAI'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 · May 5, 2026

OpenAI GPT-5.5 Instant STEM Performance Chart Scores 67

A grouped bar chart shows GPT-5.5 Instant beating GPT-5.3 Instant on GPQA and AIME accuracy.

What happened

OpenAI posted a grouped bar chart on May 5, 2026, comparing GPT-5.5 Instant and GPT-5.3 Instant on STEM benchmarks. It was the only post that day, with a second chart on visual reasoning.

The numbers

The post drew 147K views, ranking #316 of 1,162 AI chart posts. Its score of 67 ranks #293 of 1,162, and #27 of 74 OpenAI posts.

The lesson

A 2-model comparison in a grouped bar chart earned a save rate of 0.049%, below the median engagement rate of 0.91%. Clean tables with few models may not drive saves.

What it means

OpenAI's post ranks #27 of 74 of its own posts, above its median views of 39.9K. The gap to the median views-per-follower of 0.20 shows reach is wide but thin.

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

Updates: what OpenAI posted next

  1. Big Bench Audio Intelligence10.9K views
  2. LifeSciBench Scores by Scientific Workflow102.9K views
  3. AI Model Scores Comparison946.5K views
  4. Change in combined output tokens by department1.3M views
  5. TerminalBench 2.1 AI Model Scores1.9M views

Data and API

4 points read off this chart

Estimated from the image 97%
SeriesGroupValueRead
GPT-5.3 InstantGPQA PhD-Level Science78.5 %printed
GPT-5.5 InstantGPQA PhD-Level Science85.6 %printed
GPT-5.3 InstantAIME 2025 Competition Math65.4 %printed
GPT-5.5 InstantAIME 2025 Competition Math81.2 %printed

Max plan · API

GET https://viral-chart.com/api/posts/2924f020de7a.json
GET https://viral-chart.com/api/charts/2924f020de7a.json
GET https://viral-chart.com/api/charts/2924f020de7a.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 2924f020de7a.

See the Max planAPI docs
PathReturnsPlan
GET/api/v1/charts/2924f020de7aTitle, publisher, date, form, point count; with a Max key, the data linkOpen
GET/api/v1/charts/2924f020de7a/dataEvery point with its provenance and confidence, plus the redraw spec. Add ?format=csv for CSVMax
GET/api/v1/charts/2924f020de7a/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/2924f020de7a/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?

OpenAI published it on May 5, 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.