Models
Anthropic
Kimi K3 ECI benchmark comparison

@EpochAIResearchX · Jul 21, 2026

Kimi K3 ECI benchmark comparison

@EpochAIResearch's benchmark bar chart drew 68.7K views on X: 13x @epochairesearch's median post and #456 of 1,162 AI chart posts we hold by views. Read Oct 12, 2026.

Kimi K3 is highest-ECI open model, on par with Claude Opus 4.6

XData Benchmark bar chart Claude Opus 4.6 All Anthropic models Claude Fable 5 GPT-5.4 Kimi K3GPT-5.6 SolGPT-5.5Claude Opus 4.8GPT-5.6 Luna

@EpochAIResearch: Kimi K3 ECI benchmark comparison — Published by @EpochAIResearch on X, Jul 21, 2026. Source: x.com

56/ 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.

#525 of 1,162 AI chart posts we hold · #15 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

Wide but thin: views above median, engagement below it, score rank #525 of 1,162.

Views hit 68.7K, 13x the company median of 5.3K, ranking #7 of 59 @EpochAIResearch posts.

Save rate 0.11% is 1.4x the AI median of 0.076%, at the 67th percentile.

Score 56 ranks #525 of 1,162 AI chart posts, above the midpoint.

13x@epochairesearch's median post

68.7K views, where @epochairesearch's typical post gets 5.3K.

top 33%save rate

0.108% of viewers bookmarked it to come back to. The median post gets 0.076%.

bottom 39%engagement rate

0.60% of viewers liked, reposted, quoted or replied. The median post gets 0.73%.

1.5xthe median benchmark bar chart post

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

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 #525 of 1,162

Views	68.7K	#456	top 39%
Likes	334	#546	top 47%
Engagement rate	0.60%	#715	bottom 39%
Save rate	0.108%	#387	top 33%

Among 59 @epochairesearch posts

Score #15 of 59

Views	68.7K	#7	top 11%
Likes	334	#14	top 23%
Engagement rate	0.60%	#53	bottom 11%
Save rate	0.108%	#37	bottom 38%

Growth

One read so far

Views68.7K

Age at our read83 days

Views per day of life826views 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 · Jul 21, 2026

@EpochAIResearch Kimi K3 ECI benchmark chart draws 68.7K views

A single benchmark bar chart on Kimi K3 ECI comparison, posted July 21, 2026.

What happened

@EpochAIResearch posted a benchmark bar chart comparing 10 models on July 21, 2026. It was the only post from the account that day.

The numbers

Views 68.7K, likes 334, engagement rate 0.60%, save rate 0.11%, score 56. Rank #525 of 1,162 AI chart posts, #15 of 59 account posts.

The lesson

Readers saved this 10-model benchmark comparison at 1.4x the AI median save rate: a clean bar chart is what people keep to cite.

What it means

At #15 of 59 @EpochAIResearch posts, this chart outperforms most of the account's own output, but its 0.60% engagement rate sits below the AI 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

11 points read off this chart

Estimated from the image 74%

Series	Group	Value	Read
Closed models	GPT-5.6 Sol	159 ECI	estimated
Closed models	Claude Fable 5	157.5 ECI	estimated
Closed models	GPT-5.5	155.5 ECI	estimated
Closed models	Claude Opus 4.8	154.5 ECI	estimated
Closed models	GPT-5.4	153 ECI	estimated
Open models	Kimi K3	153 ECI	estimated
Closed models	Claude	151.5 ECI	estimated
Closed models	GPT-5.6 Luna	150.5 ECI	estimated
Open models	GLM-5.2	148 ECI	estimated
Open models	Kimi K2.6	147 ECI	estimated
Open models	Claude Opus 4.6	152 ECI	estimated

Max plan · API

GET https://viral-chart.com/api/posts/3efc44b79cf7.json
GET https://viral-chart.com/api/charts/3efc44b79cf7.json
GET https://viral-chart.com/api/charts/3efc44b79cf7.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 3efc44b79cf7.

See the Max plan API docs

	Path	Returns	Plan
GET	`/api/v1/charts/3efc44b79cf7`	Title, publisher, date, form, point count; with a Max key, the data link	Open
GET	`/api/v1/charts/3efc44b79cf7/data`	Every point with its provenance and confidence, plus the redraw spec. Add ?format=csv for CSV	Max
GET	`/api/v1/charts/3efc44b79cf7/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/3efc44b79cf7/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 Jul 21, 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.