Jack Clark✓ Add us as a preferred source on Google
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Make a deal with Jack Clark
🔒 Paid proposals held safely in escrow — released only when the work's approved.
Followers
138.4K
Posts
32.2K
Following
4.6K
Account age
16 yrs
💰 Suggested sponsorship rate
$775 – $1.3K / sponsored post
Estimated from audience size & typical reach — every deal is negotiable and held in SocialDB escrow.
🎁 Free analysisfor Jack Clark
Known for
3.8M views
Technological Optimism and Appropriate Fear - an essay where I grapple with how I feel about the continued steady march towards powerful AI systems. The world will bend around AI akin to how a black hole pulls and bends everything around itself.
585.4K views
Just checking in on alignment of LLMs in China, it's going about how you'd expect.
419.8K views
AI skeptics: LLMs are copy-paste engines, incapable of original thought, basically worthless.
Professionals who track AI progress: We've worked with 60 mathematicians to build a hard test that modern systems get 2% on. Hope this benchmark lasts more than a couple of years.
374.7K views
Five years ago the frontier of LLM math/science capabilities was 3 digit multiplication for GPT-3. Now, frontier LLM math/science capabilities are evaluated through condensed matter physics questions. Anyone who thinks AI is slowing down is fatally miscalibrated.
📊 Post performance
210.8K
Avg views / post
1.5×
Reach vs followers
Oct 2009
On X since
🔥 Top post: Technological Optimism and Appropriate Fear - an essay where I g · 3.8M views
📊 Activity & format
Posting cadence
0.08 / week
A lower-frequency account — each post lands with more weight.
Content mix
Mostly text
Recent: 1 video · 6 image · 11 text.
Follower / following
30×
Follows 4.6K back. A strong ratio — an audience that follows them, not a follow-for-follow network.
Verification
✓ X Premium
A paid X Premium (Blue) verified account.
Recent posts
View on X ↗
🔥 Top post
Technological Optimism and Appropriate Fear - an essay where I grapple with how I feel about the continued steady march towards powerful AI systems. The world will bend around AI akin to how a black hole pulls and bends everything around itself.
People leaving regular companies: Time for a change! Excited for my next chapter!
People leaving AI companies: I have gazed into the endless night and there are shapes out there. We must be kind to one another. I am moving on to study phi…
Five years ago the frontier of LLM math/science capabilities was 3 digit multiplication for GPT-3. Now, frontier LLM math/science capabilities are evaluated through condensed matter physics questions. Anyone who thinks AI is slowing down i…
An increasing number of people are gazing deep into the dark pool of AI timelines and are realizing that something is about to jump out of that pool upon society. It's interesting to see 'the awakening' ripple across people, reaching ever …
The most surprising part of DeepSeek-R1 is that it only takes ~800k samples of 'good' RL reasoning to convert other models into RL-reasoners. Now that DeepSeek-R1 is available people will be able to refine samples out of it to convert any …
AI skeptics: LLMs are copy-paste engines, incapable of original thought, basically worthless.
Professionals who track AI progress: We've worked with 60 mathematicians to build a hard test that modern systems get 2% on. Hope this benchmar…
Anthropic will work with the Trump Administration and Congress to advance US leadership in AI, and discuss the benefits, capabilities and potential safety issues of frontier systems.
Extremely short thread about being very scared: This week, my plane from LHR to SFO had an electrical issue. All the lights in the plane turned off and there was a smell of burning plastic. We did an emergency landing in Calgary.
▶
Just checking in on alignment of LLMs in China, it's going about how you'd expect.
A mental model I have of AI is it was roughly ~linear progress from 1960s-2010, then exponential 2010-2020s, then has started to display 'compounding exponential' properties in 2021/22 onwards. In other words, next few years will yield pro…
Happy New Year, Twitter. We live in the interesting timeline.
In the last decade:
- figured out cut&paste for DNA (crispr)
- reusable rockets (SpaceX)
- crude but generally useful AI systems (llms, image/vid models, RL for inventory)
- promising fusion approaches (helion, etc)
This decade is goi…
Five years ago the frontier of LLM math/science capabilities was 3 digit multiplication for GPT-3. Now, frontier LLM math/science capabilities are evaluated through condensed matter physics questions. Anyone who thinks AI is slowing down i…
An increasing number of people are gazing deep into the dark pool of AI timelines and are realizing that something is about to jump out of that pool upon society. It's interesting to see 'the awakening' ripple across people, reaching ever …
The most surprising part of DeepSeek-R1 is that it only takes ~800k samples of 'good' RL reasoning to convert other models into RL-reasoners. Now that DeepSeek-R1 is available people will be able to refine samples out of it to convert any …
AI skeptics: LLMs are copy-paste engines, incapable of original thought, basically worthless.
Professionals who track AI progress: We've worked with 60 mathematicians to build a hard test that modern systems get 2% on. Hope this benchmar…
Anthropic will work with the Trump Administration and Congress to advance US leadership in AI, and discuss the benefits, capabilities and potential safety issues of frontier systems.
Extremely short thread about being very scared: This week, my plane from LHR to SFO had an electrical issue. All the lights in the plane turned off and there was a smell of burning plastic. We did an emergency landing in Calgary.
▶
Just checking in on alignment of LLMs in China, it's going about how you'd expect.
A mental model I have of AI is it was roughly ~linear progress from 1960s-2010, then exponential 2010-2020s, then has started to display 'compounding exponential' properties in 2021/22 onwards. In other words, next few years will yield pro…
Happy New Year, Twitter. We live in the interesting timeline.
In the last decade:
- figured out cut&paste for DNA (crispr)
- reusable rockets (SpaceX)
- crude but generally useful AI systems (llms, image/vid models, RL for inventory)
- promising fusion approaches (helion, etc)
This decade is goi…
💡 Facts
🗓️Joined X in 2009 — 16 years ago.
👁️Averages 210.8K views per post.
📤Posts about 0.1× per week.
💬1.73% engagement rate.
🏅Earned the 100K Followers for passing 100K followers.
🕵️ Fake follower check
Estimated69/100
Good
Credibility score
85%
Real
Real audience
Low
Fake-follower risk
High
Data confidence
- Est. 85% real, active audience · Low fake-follower risk.
- Engagement (~1.5× of followers engage each post) is around typical for X.
- Organic base — far more followers than accounts it follows.
- Verified account.
- Established account (16+ years old).
- 1.73% engagement — below the ~14.4% typical for this size.
Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.
About
@AnthropicAI, ONEAI OECD, co-chair @indexingai, writer @ http://importai.net Past: @openai, @business @theregister. Neural nets, distributed systems, weird futures
📸 Gallery
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