Models
xAI
Berkeley Function Calling v4 Benchmark

xAIX · Nov 19, 2025 · official

Berkeley Function Calling v4 Benchmark

xAI's scatter plot drew 59.4K views on X: 0.5x its median post and #496 of 1,162 AI chart posts we hold by views. Read Oct 12, 2026.

Accuracy vs Cost for AI Models

XData Scatter plot Grok 4 All xAI models Gemini 3 Pro GPT 5Grok 4.1 Fast ReasoningClaude Sonnet 4.5

xAI: Berkeley Function Calling v4 Benchmark — Published by xAI on X, Nov 19, 2025. Source: x.com

50/ 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.

#617 of 1,162 AI chart posts we hold · #23 of 23 xAI 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 Wide but thin quadrant at #617 of 1,162 AI chart posts.

Its #1 of 3 rank by views that day came from 3 posts from this account on November 19, 2025.

The 0.047% save rate sits at the 26th percentile among AI chart posts, below the 0.076% median.

At 59.4K views it reached 0.45x this company's 131K median, ranking #19 of 23 xAI posts.

3posts from xAI that day

Part of a run of 3 posts on Nov 19, 2025. This one was #1 of 3 by views that day.

0.5xxAI's median post

59.4K views, where xAI's typical post gets 130.6K.

bottom 26%save rate

0.047% of viewers bookmarked it to come back to. The median post gets 0.076%.

2.6xthe median scatter plot post

Across 187 scatter plot posts we hold, the median gets 22.4K views.

Public X numbers from our read on Oct 12, 2026. Peers: 1,162 AI chart posts we hold and 23 from xAI.

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 #617 of 1,162

Views	59.4K	#496	top 43%
Likes	349	#536	top 46%
Engagement rate	0.67%	#645	bottom 45%
Save rate	0.047%	#855	bottom 26%

Among 23 xAI posts

Score #23 of 23

Views	59.4K	#19	bottom 20%
Likes	349	#21	bottom 11%
Engagement rate	0.67%	#14	bottom 41%
Save rate	0.047%	#12	top 50%

Growth

One read so far

Views59.4K

Age at our read327 days

Views per day of life182views 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.

xAI'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 · Nov 19, 2025

xAI posts Berkeley Function Calling v4 Benchmark scatter plot

A scatter plot of Accuracy vs Cost for AI Models drew 59.4K views and a 0.67% engagement rate.

What happened

xAI published a scatter plot on the Berkeley Function Calling v4 Benchmark on November 19, 2025. It came with 2 other posts from this account that day, on r²-bench Telecom and AI Model Accuracy Comparison.

The numbers

It drew 59.4K views, ranking #496 of 1,162 AI chart posts, against a 39.9K median among AI chart posts. Its score of 50 ranked #617 of 1,162 AI chart posts and #23 of 23 xAI posts.

The lesson

A 0.047% save rate at the 26th percentile among AI chart posts shows this scatter plot was not kept: the 0.076% median save rate is what chart makers clear when readers bookmark a chart.

What it means

At #23 of 23 xAI posts and 0.45x the company's 131K median views, this chart sits at the bottom of this publisher's own range. The 0.047% save rate against the 0.076% median marks the gap between views and keeps.

Written by ViralChart from public numbers read on Oct 12, 2026. Every number is checked against our data before it is shown.

Updates: what xAI posted next

Data and API

6 points read off this chart

Estimated from the image 30%

Group	Value	Read
	72 %	estimated
Grok 4.1 Fast Reasoning	72 %	estimated
Claude Sonnet 4.5	68 %	estimated
Gemini 3 Pro*	50 %	estimated
GPT 5	40 %	estimated
Grok 4	45 %	estimated

Max plan · API

GET https://viral-chart.com/api/posts/6893fa7a96a4.json
GET https://viral-chart.com/api/charts/6893fa7a96a4.json
GET https://viral-chart.com/api/charts/6893fa7a96a4.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 6893fa7a96a4.

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/6893fa7a96a4`	Title, publisher, date, form, point count; with a Max key, the data link	Open
GET	`/api/v1/charts/6893fa7a96a4/data`	Every point with its provenance and confidence, plus the redraw spec. Add ?format=csv for CSV	Max
GET	`/api/v1/charts/6893fa7a96a4/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/6893fa7a96a4/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.