Jack Clark ✓

@jackclarkSF · San Francisco, CA · joined 30 Oct 2009

@AnthropicAI, ONEAI OECD, co-chair @indexingai, writer @ https://t.co/3vmtHYkIJ2 Past: @openai, @business @theregister. Neural nets, distributed systems, weird futures

142 642Followers

4 618Following

32 290Posts total

313.2KViews on collected posts

Against accounts of the same size

4 posts from the last 90 days, next to the 100K–1M follower range. shown to more people than peers of the same size.

Median views93 865this account22 159median for 100K–1M

Reach, %65.80%this account6.71%median for 100K–1M

Engagement, %0.91%this account1.18%median for 100K–1M

Metric	This account	Median for 100K–1M	Ratio
Median views per post	93 865	22 159	4.24×
Reach (views ÷ followers)	65.80%	6.71%	9.81×
Engagement rate	0.91%	1.18%	0.77×

Others in this range → Compare with another account → How these benchmarks are built →

Growth & engagement

How the posts we collected actually performed: views and reaction rate post by post, what the audience did with them, and where the follower count goes.

Views per post

17.7K25 Aug

107.8K26 Aug

83.6K28 Aug

104.1K1 Sep

Last 4 collected posts, oldest on the left. The scale is logarithmic: one post can outrun the rest a hundred times over.

Engagement rate per post

1.18%25 Aug

0.86%26 Aug

0.72%28 Aug

0.95%1 Sep

Reactions — likes, reposts, replies and quotes — divided by views. Median for 100K–1M accounts is 1.18%.

What the audience does

Likes59.4%2 280 in total

Reposts5.7%220 in total

Replies4.8%186 in total

Quotes1.1%41 in total

Bookmarks28.9%1 111 in total

Share of every reaction we collected for this account. Replies mean argument, reposts mean endorsement, bookmarks mean the post was worth keeping.

The follower curve appears once this account has two daily snapshots — we take one a day, and this one is on its first.

Latest posts

"we believe the world would benefit if the industry adopted a lawful, verifiable, effective mechanism for coordinated pacing as soon as possible." 104.1K views · 809 likes · 97 reposts · 63 replies 01 Sep 2026 https://t.co/kNdNHTZzle 83.6K views · 483 likes · 52 reposts · 50 replies 28 Aug 2026 Ever since co-founding Anthropic I've been obsessed with the need for third-party measurement of AI systems. (It's in my tweet announcing Anthropic: https://t.co/hAm5t506Yh). Now, we're piloting a way for outside researchers and organizations to study what's happening on AI 107.8K views · 799 likes · 68 reposts · 58 replies 26 Aug 2026 This morning, I hiked through dust and into mossy forests, past coyotes and wild turkeys, climbed to find myself atop the world, able to peek at land islands garlanded with fog beneath and scalloped clouds above. #VOTENATURE2026 https://t.co/xfHVAvlsQ7 17.7K views · 189 likes · 3 reposts · 15 replies 25 Aug 2026 Here’s what I’ve been working on recently: @anthropicai. I’ll be spending a lot of my time on measurement and assessment of our AI systems, as well as thinking of ways govs/others can assess AI tech. There’s a lot to do! 0 views · 862 likes · 43 reposts · 99 replies 28 May 2021