Models
Anthropic
Claude Fable 5.1 Benchmark Comparison

AnthropicX · Sep 1, 2026 · official

Claude Fable 5.1 Benchmark Comparison

Anthropic's table chart drew 1.2M views on X: 2.8x its median post and #96 of 1,162 AI chart posts we hold by views. Read Oct 13, 2026.

Claude Fable 5.1 performance across multiple benchmarks

XData Table chart Claude Fable 5 All Anthropic modelsFable 5.1Fable 5Opus 5GPT-5.6 Sol

Anthropic: Claude Fable 5.1 Benchmark Comparison — Published by Anthropic on X, Sep 1, 2026. Source: x.com

75/ 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.

#115 of 1,162 AI chart posts we hold · #15 of 56 Anthropic 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 #115 of 1,162 AI chart posts.

Its score of 75 ranks #115 of 1,162 AI chart posts and #15 of 56 Anthropic posts.

The 1.2M views are 2.8x Anthropic's 431K median, ranking #19 of 56 Anthropic posts.

On September 1, 2026 it ranked #1 of 3 posts from this account that day.

8.9xthe median table chart post

Across 95 table chart posts we hold, the median gets 133.2K views.

2.8xAnthropic's median post

1.2M views, where Anthropic's typical post gets 431K.

3posts from Anthropic that day

Part of a run of 3 posts on Sep 1, 2026. This one was #1 of 3 by views that day.

bottom 32%save rate

0.052% 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 56 from Anthropic.

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 #115 of 1,162

Views	1.2M	#96	top 8%
Likes	5.5K	#57	top 5%
Engagement rate	0.54%	#784	bottom 33%
Save rate	0.052%	#792	bottom 32%

Among 56 Anthropic posts

Score #15 of 56

Views	1.2M	#19	top 33%
Likes	5.5K	#15	top 26%
Engagement rate	0.54%	#30	bottom 47%
Save rate	0.052%	#30	bottom 47%

Growth

Our reads cover 27 hours

Views1.2M

Age at our read42 days

Views per day of life28.2Kviews divided by days since it was posted

Gained between our reads+113views over 27 hours, about 100 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.

Anthropic'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 1, 2026

Anthropic posts Claude Fable 5.1 benchmark comparison table

A table chart of Claude Fable 5.1 across benchmarks drew 1.2M views and a 0.54% engagement rate.

What happened

Anthropic published a table chart on September 1, 2026 comparing Claude Fable 5.1 performance across multiple benchmarks. That day the account posted 3 times, including Indexed cost of Fable usage and Terminal-Bench-Science 0.1: Accuracy vs Cost.

The numbers

The post reached 1.2M views, ranking #96 of 1,162 AI chart posts and #19 of 56 Anthropic posts. Its score of 75 ranks #115 of 1,162 AI chart posts.

The lesson

A table chart with 4 models shown drew 1.2M views against a 39.9K median among AI chart posts, but a 0.052% save rate. The reach is wide while the engagement rate of 0.54% sits below the AI chart median.

What it means

At #15 of 56 Anthropic posts by score, this chart sits above the account's own median performance. The 2.8x gap over Anthropic's 431K median views shows the reach, while the 0.54% engagement rate marks the thin side.

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

Updates: what Anthropic posted next

Data and API

53 points read off this chart

Partly publisher's numbers 62%

Series	Group	Value	Read
Fable 5.1	Agentic scientific research	52.6	printed
Fable 5	Agentic scientific research	24.7	printed
Opus 5	Agentic scientific research	29	printed
GPT-5.6 Sol	Agentic scientific research	22.4	printed
Fable 5.1	Terminal-Bench-Science 0.1	60.9	printed
Fable 5	Terminal-Bench-Science 0.1	42	printed
Opus 5	Terminal-Bench-Science 0.1	52.3	printed
GPT-5.6 Sol	Terminal-Bench-Science 0.1	37.3	printed
Fable 5.1	Agentic coding	55.8	printed
Fable 5	Agentic coding	42	printed
Opus 5	Agentic coding	52.3	printed
GPT-5.6 Sol	Agentic coding	37.3	printed

Showing 12 of 53. All points, the redraw and the maker

Max plan · API

GET https://viral-chart.com/api/posts/9925c28e11df.json
GET https://viral-chart.com/api/charts/9925c28e11df.json
GET https://viral-chart.com/api/charts/9925c28e11df.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 9925c28e11df.

See the Max plan API docs

	Path	Returns	Plan
GET	`/api/v1/charts/9925c28e11df`	Title, publisher, date, form, point count; with a Max key, the data link	Open
GET	`/api/v1/charts/9925c28e11df/data`	Every point with its provenance and confidence, plus the redraw spec. Add ?format=csv for CSV	Max
GET	`/api/v1/charts/9925c28e11df/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/9925c28e11df/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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