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Anthropic
GPT-6.1 Sol and Claude Opus 5.5: API value

@SemiAnalysis_X · Oct 5, 2026

GPT-6.1 Sol and Claude Opus 5.5: API value

@SemiAnalysis_'s bar chart drew 15.7K views on X: 0.4x @semianalysis_'s median post and #753 of 1,162 AI chart posts we hold by views. Read Oct 13, 2026.

API value comparison of GPT-6.1 Sol and Claude Opus 5.5

XData Bar chart Claude Opus 5 All Anthropic modelsGPT-6.1 SolClaude Opus 5.5

@SemiAnalysis_: GPT-6.1 Sol and Claude Opus 5.5: API value — Published by @SemiAnalysis_ on X, Oct 5, 2026. Source: x.com

45/ 100

ViralChart score

Quiet

Fewer views and a lower engagement rate than the median post.

#693 of 1,162 AI chart posts we hold · #17 of 24 @semianalysis_ 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 Quiet quadrant, at #693 of 1,162 AI chart posts.

Its 0.19% save rate sits at the 89th percentile among AI chart posts, against a 0.076% median.

At 15.7K views, it runs 0.39x @SemiAnalysis_'s 40.3K company median, ranking #19 of 24 @SemiAnalysis_ posts.

It ranked #2 of 2 posts from this account on October 5, 2026.

top 11%save rate

0.191% of viewers bookmarked it to come back to. The median post gets 0.076%.

0.4x@semianalysis_'s median post

15.7K views, where @semianalysis_'s typical post gets 40.3K.

2posts from @semianalysis_ that day

Part of a run of 2 posts on Oct 5, 2026. This one was #2 of 2 by views that day.

0.6xthe median bar chart post

Across 241 bar chart posts we hold, the median gets 25.6K views.

Public X numbers from our read on Oct 13, 2026. Peers: 1,162 AI chart posts we hold and 24 from @semianalysis_.

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 #693 of 1,162

Views	15.7K	#753	bottom 35%
Likes	88	#775	bottom 33%
Engagement rate	0.73%	#590	bottom 49%
Save rate	0.191%	#128	top 11%

Among 24 @semianalysis_ posts

Score #17 of 24

Views	15.7K	#19	bottom 23%
Likes	88	#19	bottom 23%
Engagement rate	0.73%	#10	top 40%
Save rate	0.191%	#4	top 15%

Growth

Our reads cover 25 hours

Views15.7K

Age at our read8 days

Views per day of life2Kviews divided by days since it was posted

Gained between our reads+87views over 25 hours, about 83 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.

@semianalysis_'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 · Oct 5, 2026

@SemiAnalysis_ charts API value for GPT-6.1 Sol and Claude Opus 5.5

A bar chart comparing API value across plan tiers drew 15.7K views and a 0.19% save rate, the 89th percentile among AI chart posts.

What happened

@SemiAnalysis_ posted a bar chart on October 5, 2026 comparing API value for GPT-6.1 Sol and Claude Opus 5.5. It was one of 2 posts from this account that day, alongside a post on API value per dollar: OpenAI vs Anthropic.

The numbers

The post reached 15.7K views, ranking #753 of 1,162 AI chart posts and #19 of 24 @SemiAnalysis_ posts. Its score of 45 ranked #693 of 1,162 AI chart posts.

The lesson

A 0.19% save rate, the 89th percentile among AI chart posts, shows readers bookmark this bar chart at a rate above the 0.076% median even as views stay low.

What it means

At 0.39x @SemiAnalysis_'s 40.3K company median views, this post ranks #19 of 24 @SemiAnalysis_ posts, so its save rate outperforms while its reach trails the account's own median.

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

Updates: what @semianalysis_ posted next

Oct 5, 2026API value per dollar: OpenAI vs Anthropic22.4K views

Data and API

6 points read off this chart

Estimated from the image 97%

Series	Group	Value	Read
OpenAI - GPT-6.1 Sol	$200/mo	2084 USD/mo	printed
Anthropic - Claude Opus 5.5	$200/mo	11726 USD/mo	printed
OpenAI - GPT-6.1 Sol	$100/mo	1055 USD/mo	printed
Anthropic - Claude Opus 5.5	$100/mo	5725 USD/mo	printed
OpenAI - GPT-6.1 Sol	$20/mo	211 USD/mo	printed
Anthropic - Claude Opus 5.5	$20/mo	1178 USD/mo	printed

Max plan · API

GET https://viral-chart.com/api/posts/00382d5b2e87.json
GET https://viral-chart.com/api/charts/00382d5b2e87.json
GET https://viral-chart.com/api/charts/00382d5b2e87.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 00382d5b2e87.

See the Max plan API docs

	Path	Returns	Plan
GET	`/api/v1/charts/00382d5b2e87`	Title, publisher, date, form, point count; with a Max key, the data link	Open
GET	`/api/v1/charts/00382d5b2e87/data`	Every point with its provenance and confidence, plus the redraw spec. Add ?format=csv for CSV	Max
GET	`/api/v1/charts/00382d5b2e87/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/00382d5b2e87/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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