Models
Meta
Agent Arena Spark 1.3 (Max) Ranked #13

@arenaX · Sep 11, 2026

Agent Arena Spark 1.3 (Max) Ranked #13

@arena's benchmark bar chart drew 49.5K views on X: 1.1x its median post and #538 of 1,162 AI chart posts we hold by views. Read Oct 12, 2026.

Muse Spark 1.3 (Max) ranks 13th with 4.2% improvement

XData Benchmark bar chart Muse Spark All Meta models Claude Fable 5Claude Fable 5.1 (Max)GPT-6 Astra (Max)Claude Opus 5 (High)Claude Opus 5 (Max)Claude Opus 4.8 (High)GPT-5.6 Sol (xHigh)Kimi K3 (Max)

@arena: Agent Arena Spark 1.3 (Max) Ranked #13 — Published by @arena on X, Sep 11, 2026. Source: x.com

57/ 100

ViralChart score

Reached and resonated

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

#512 of 1,162 AI chart posts we hold · #110 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 Reached and resonated quadrant, at #512 of 1,162 AI chart posts.

Its 0.87% engagement rate sits above the 0.73% median among AI chart posts, at the 64th percentile.

The post ranks #2 of 3 by views among @arena posts that day.

A score of 57 places it at #512 of 1,162 AI chart posts.

0.21views per follower

49.5K views from an account with 234.1K followers.

3posts from @arena that day

Part of a run of 3 posts on Sep 11, 2026. This one was #2 of 3 by views that day.

top 36%engagement rate

0.87% of viewers liked, reposted, quoted or replied. The median post gets 0.73%.

top 37%save rate

0.101% 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 #512 of 1,162

Views	49.5K	#538	top 46%
Likes	376	#515	top 44%
Engagement rate	0.87%	#422	top 36%
Save rate	0.101%	#426	top 37%

Among 239 @arena posts

Score #110 of 239

Views	49.5K	#115	top 48%
Likes	376	#114	top 47%
Engagement rate	0.87%	#74	top 31%
Save rate	0.101%	#82	top 34%

Growth

One read so far

Views49.5K

Age at our read31 days

Views per day of life1.6Kviews 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 · Sep 11, 2026

@arena posts Agent Arena Spark 1.3 (Max) benchmark bar chart

The chart shows Muse Spark 1.3 (Max) at 4.2% improvement, ranking 13th among 23 models.

What happened

@arena posted a benchmark bar chart on September 11, 2026, covering Agent Arena Spark 1.3 (Max) Ranked #13. It came with 2 other posts from the account that day.

The numbers

The post drew 49.5K views, ranking #538 of 1,162 AI chart posts. Its score of 57 ranked #512 of 1,162 AI chart posts and #110 of 239 @arena posts.

The lesson

At 0.87%, engagement beat the 0.73% median among AI chart posts. A benchmark bar chart with 23 models shown can hold above-median engagement even when views stay near the 39.9K median.

What it means

At #110 of 239 @arena posts, this chart sits mid-pack for the account. The 0.87% engagement rate against the 0.68% median for this account shows the gap is in engagement, not reach.

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

25 points read off this chart

Estimated from the image 78%

Group	Value	Read
Claude Fable 5.1 (Max)	13.9 %	printed
GPT-6 Astra (Max)	12.4 %	printed
Claude Opus 5 (High)	11.1 %	printed
Claude Fable 5	10.8 %	printed
Claude Opus 5 (Max)	9.1 %	printed
Claude Opus 4.8 (High)	7.6 %	printed
GPT-5.6 Sol (xHigh)	7.5 %	printed
Claude Sonnet 5 (High)	5.9 %	estimated
Kimi K3 (Max)	5.2 %	estimated
Hy4 Preview	5.2 %	printed
Muse Spark 1.3 (Max)	4.2 %	printed
GPT 5.5 (xHigh)	4.2 %	estimated

Showing 12 of 25. All points, the redraw and the maker

Max plan · API

GET https://viral-chart.com/api/posts/c4d799797aa0.json
GET https://viral-chart.com/api/charts/c4d799797aa0.json
GET https://viral-chart.com/api/charts/c4d799797aa0.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 c4d799797aa0.

See the Max plan API docs

	Path	Returns	Plan
GET	`/api/v1/charts/c4d799797aa0`	Title, publisher, date, form, point count; with a Max key, the data link	Open
GET	`/api/v1/charts/c4d799797aa0/data`	Every point with its provenance and confidence, plus the redraw spec. Add ?format=csv for CSV	Max
GET	`/api/v1/charts/c4d799797aa0/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/c4d799797aa0/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.