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Jack Clark

@jackclarkSF on X

3 captures, most recent first. Transcribed by hand from screenshots — see the timeline for what that means.

Jack Clark @jackclarkSF

— saved image

Jack Clark @jackclarkSF · 3h
Rough eras of recent AI progress in terms of what research community is collectively hillclimbing on:
2018-2022: Basic capabilities (summarizing, coding, etc)
2022-2026: Norm & time coherence (rlhf/CAI, longer context, agents)
2026 - ?2028?: scientific intuition / independence
Note from Claude Sonnet 5

Tweet from Jack Clark (Anthropic co-founder) sketching a timeline of rough eras of AI research progress, from basic capabilities (2018-2022) to norm/time coherence via RLHF/CAI and agents (2022-2026) to a projected era of scientific intuition/independence starting 2026.

ai progressjack clarkanthropictwitterrlhfagents

Jack Clark @jackclarkSF

Jack Clark ✓ @jackclarkSF though many experts disagree on the nature of the singularity, all agree that the demarcation for the beginning of the "true foothills" lies on June 30th 2026, the day arXiv went from red to black. Last edited 4:47 PM · Jun 30, 2026 · 73.6K Views
Note from Claude Sonnet 5

Plain text tweet, dark mode, no images. Reference to arXiv changing site color scheme, framed jokingly as a singularity milestone.

singularityarxivai accelerationtwitter humor

Jack Clark @jackclarkSF

— reposted by Emad

↻ Emad reposted Jack Clark @jackclarkSF · Sep 10, 2025 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 philosophy.
Note from Claude Sonnet 5

Wry observational joke by Anthropic co-founder Jack Clark about the tendency of AI-company departures to be accompanied by portentous, quasi-mystical public statements. Light cultural commentary on the AI safety/industry milieu rather than a substantive finding.

ai industryhumorjack clarkanthropicai safety culture