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OpenAI
FrontierMath private accuracy for OpenAI o3 and o4-mini

@EpochAIResearchX · Apr 23, 2025

FrontierMath private accuracy for OpenAI o3 and o4-mini

@EpochAIResearch's benchmark bar chart drew 1.8K views on X: 0.3x @epochairesearch's median post and #1,093 of 1,162 AI chart posts we hold by views. Read Oct 12, 2026.

FrontierMath accuracy for o3 and o4-mini by reasoning setting

XData Benchmark bar chart GPT mini models All OpenAI models o4-mini o3

@EpochAIResearch: FrontierMath private accuracy for OpenAI o3 and o4-mini — Published by @EpochAIResearch on X, Apr 23, 2025. Source: x.com

37/ 100

ViralChart score

Small but loved

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

#804 of 1,162 AI chart posts we hold · #37 of 59 @epochairesearch 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 lands in Small but loved: views below the AI chart median, engagement rate above it, at #804 of 1,162 AI chart posts.

Its 2.07% engagement rate sits at the 98th percentile among AI chart posts, against a 0.73% median.

At 1.8K views, the post runs 0.35x @EpochAIResearch's 5.3K company median.

Benchmark bar charts draw a 44.4K median; this one reached 1.8K, a 0.04x ratio.

0.0xthe median benchmark bar chart post

Across 215 benchmark bar chart posts we hold, the median gets 44.4K views.

top 2%engagement rate

2.07% of viewers liked, reposted, quoted or replied. The median post gets 0.73%.

top 8%save rate

0.218% of viewers bookmarked it to come back to. The median post gets 0.076%.

0.3x@epochairesearch's median post

1.8K views, where @epochairesearch's typical post gets 5.3K.

Public X numbers from our read on Oct 12, 2026. Peers: 1,162 AI chart posts we hold and 59 from @epochairesearch.

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 #804 of 1,162

Views	1.8K	#1,093	bottom 6%
Likes	35	#936	bottom 20%
Engagement rate	2.07%	#19	top 2%
Save rate	0.218%	#89	top 8%

Among 59 @epochairesearch posts

Score #37 of 59

Views	1.8K	#46	bottom 23%
Likes	35	#41	bottom 31%
Engagement rate	2.07%	#10	top 16%
Save rate	0.218%	#14	top 23%

Growth

One read so far

Views1.8K

Age at our read537 days

Views per day of life3views 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.

@epochairesearch'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 · Apr 23, 2025

@EpochAIResearch posts FrontierMath accuracy for o3 and o4-mini

A FrontierMath benchmark bar chart for o3 and o4-mini drew 1.8K views and a 2.07% engagement rate, at the 98th percentile among AI chart posts.

What happened

@EpochAIResearch posted a FrontierMath private accuracy chart for o3 and o4-mini on April 23, 2025. It was one of 2 posts from the account that day, alongside a FrontierMath accuracy vs cost chart at 1.7K views.

The numbers

The post reached 1.8K views, #1,093 of 1,162 AI chart posts and #46 of 59 @EpochAIResearch posts. Its engagement rate of 2.07% ranks #19 of 1,162 AI chart posts.

The lesson

A benchmark bar chart at 1.8K views against a 44.4K median for the type still held a 2.07% engagement rate, above the 0.75% median for that type.

What it means

At #37 of 59 @EpochAIResearch posts by score, this chart sits below the account's 5.3K view median, while its 2.07% engagement rate clears the account's own 1.37% median.

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

Updates: what @epochairesearch posted next

Data and API

6 points read off this chart

Estimated from the image 30%

Group	Value	Read
o4-mini high	15.5 %	estimated
o4-mini medium	17.5 %	estimated
o4-mini low	9.5 %	estimated
o3 high	10.5 %	estimated
o3 medium	10.5 %	estimated
o3 low	10.5 %	estimated

Max plan · API

GET https://viral-chart.com/api/posts/36ac3fb80e3c.json
GET https://viral-chart.com/api/charts/36ac3fb80e3c.json
GET https://viral-chart.com/api/charts/36ac3fb80e3c.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 36ac3fb80e3c.

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/36ac3fb80e3c`	Title, publisher, date, form, point count; with a Max key, the data link	Open
GET	`/api/v1/charts/36ac3fb80e3c/data`	Every point with its provenance and confidence, plus the redraw spec. Add ?format=csv for CSV	Max
GET	`/api/v1/charts/36ac3fb80e3c/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/36ac3fb80e3c/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?

@EpochAIResearch published it on Apr 23, 2025 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.