Models
OpenAI
Artificial Analysis Coding Agent Index v1.1

@ArtificialAnlysX · Sep 29, 2026

Artificial Analysis Coding Agent Index v1.1

@ArtificialAnlys's bar chart drew 10.7K views on X: 0.9x @artificialanlys's median post and #806 of 1,162 AI chart posts we hold by views. Read Oct 13, 2026.

Claude Code leads coding agent index; GPT-6.1-Sol variants follow

XData Bar chart GPT-6 All OpenAI modelsClaude Code Sonnet 5.5Claude Code Opus 5.5GPT-6.1-Sol (high)Claude Code Opus 5.5 (with fallback)GPT-6.1-Sol (medium)GPT-6.1-Sol (low)Grok Build - Grok 4.7 (high)GPT-6.1-Sol (max)

@ArtificialAnlys: Artificial Analysis Coding Agent Index v1.1 — Published by @ArtificialAnlys on X, Sep 29, 2026. Source: x.com

38/ 100

ViralChart score

Small but loved

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

#777 of 1,162 AI chart posts we hold · #233 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

It sits in the Small but loved quadrant, at #777 of 1,162 AI chart posts.

Its 10.7K views rank #2 of 4 @ArtificialAnlys posts from September 29, 2026, level with the account's launch-day pattern.

The score of 38 places it #777 of 1,162 AI chart posts and #233 of 491 @ArtificialAnlys posts.

At 0.42x the 25.6K median views for bar charts, its 10.7K views sit below that median.

4posts from @artificialanlys that day

Part of a run of 4 posts on Sep 29, 2026. This one was #2 of 4 by views that day.

0.4xthe median bar chart post

Across 241 bar chart posts we hold, the median gets 25.6K views.

top 45%engagement rate

0.79% of viewers liked, reposted, quoted or replied. The median post gets 0.73%.

top 46%save rate

0.084% of viewers bookmarked it to come back to. The median post gets 0.076%.

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 #777 of 1,162

Views	10.7K	#806	bottom 31%
Likes	75	#804	bottom 31%
Engagement rate	0.79%	#521	top 45%
Save rate	0.084%	#533	top 46%

Among 491 @artificialanlys posts

Score #233 of 491

Views	10.7K	#252	bottom 49%
Likes	75	#248	bottom 50%
Engagement rate	0.79%	#260	bottom 47%
Save rate	0.084%	#229	top 47%

Growth

Our reads cover 21 hours

Views10.7K

Age at our read14 days

Views per day of life771views divided by days since it was posted

Gained between our reads+9views over 21 hours, about 10 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 · Sep 29, 2026

@ArtificialAnlys posts Coding Agent Index v1.1 bar chart

The bar chart shows the Artificial Analysis Coding Agent Index v1.1, with 10.7K views and a 0.79% engagement rate.

What happened

On September 29, 2026, @ArtificialAnlys published a bar chart on the Artificial Analysis Coding Agent Index v1.1. It was one of 4 posts from the account that day, alongside the Intelligence Index vs Cost, Intelligence Index vs Output Tokens and AA-Briefcase v1.1 Benchmark Scores posts.

The numbers

It drew 10.7K views, ranking #806 of 1,162 AI chart posts, against a median of 39.9K views among AI chart posts. Its score of 38 ranks #777 of 1,162 AI chart posts and #233 of 491 @ArtificialAnlys posts.

The lesson

A bar chart with 15 models shown drew 10.7K views, 0.42x the 25.6K median for bar charts, while its 0.79% engagement rate matched the 0.79% median for the type. The save rate of 0.084% sits against that engagement, so the chart was kept less than it was liked.

What it means

At #233 of 491 @ArtificialAnlys posts, this chart sits below the account's own median, and its 10.7K views are 0.42x the 25.6K median for bar charts. The 0.79% engagement rate matches the bar chart median, so the gap is in views, not in engagement.

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

16 points read off this chart

Estimated from the image 30%

Group	Value	Read
AI	68	estimated
Claude Code	66	estimated
Claude Opus	63	estimated
Codex	62	estimated
GPT-4.1	62	estimated
GPT-5	60	estimated
Grok	57	estimated
Kimi	56	estimated
Muse	55	estimated
OpenCode	54	estimated
Qwen	54	estimated
Seed	52	estimated

Showing 12 of 16. All points, the redraw and the maker

Max plan · API

GET https://viral-chart.com/api/posts/a3130d791c8b.json
GET https://viral-chart.com/api/charts/a3130d791c8b.json
GET https://viral-chart.com/api/charts/a3130d791c8b.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 a3130d791c8b.

Approximate values. Our two readings of this chart agreed only in part (confidence 0.30 of 1), so check the original before you quote a number. The API marks it lowConfidence, and ?min_confidence=0.5 leaves it out.

See the Max plan API docs

	Path	Returns	Plan
GET	`/api/v1/charts/a3130d791c8b`	Title, publisher, date, form, point count; with a Max key, the data link	Open
GET	`/api/v1/charts/a3130d791c8b/data`	Every point with its provenance and confidence, plus the redraw spec. Add ?format=csv for CSV	Max
GET	`/api/v1/charts/a3130d791c8b/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/a3130d791c8b/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 Sep 29, 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.