/Tech21h ago

Nathan Lambert, AI2 post-training lead, argues Anthropic's inconsistent safety policies for Claude Fable 5 weaken collective AI safety

Ravid Shwartz Ziv accused Anthropic of using safety to block competition.

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Nathan Lambert@natolambert#70inTech

Why I think Anthropic's uneven safety policies with the release of Claude Fable 5 undermine the broader AI community's cohesion and accelerate us to more uncertainty and risk in AI's near-term evolution. https://www.interconnects.ai/p/claude-fable-5-and-new-ai-safety

4:00 PM · Jun 9, 2026 · 25.9K Views
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Great article by Nathan. Antropic plays a double-standard game here (and in many other cases). They talk a lot about safety (which is super important), but what they actually do is prevent competition (which is legit, but should be transparent about it). They are wrapping the two together because they want to look good

Nathan Lambert@natolambert

Why I think Anthropic's uneven safety policies with the release of Claude Fable 5 undermine the broader AI community's cohesion and accelerate us to more uncertainty and risk in AI's near-term evolution. https://www.interconnects.ai/p/claude-fable-5-and-new-ai-safety

20hViews 5.3KLikes 55Bookmarks 6
Nathan Lambert@natolambert

(i've been pretty sick the last few days so if something is off plz be charitable in the rapid speed blog assembly line)

Nathan Lambert@natolambert

Why I think Anthropic's uneven safety policies with the release of Claude Fable 5 undermine the broader AI community's cohesion and accelerate us to more uncertainty and risk in AI's near-term evolution. https://www.interconnects.ai/p/claude-fable-5-and-new-ai-safety

20hViews 3.9KLikes 15Bookmarks 0

Great article by Nathan. Antropic plays a double-standard game here (and in many other cases). A double staney talked a lot about safety (which is super important), but what they actually do is prevent competition (which is legit, but should be transparent about it). They are wrapping the two together because they want to look good

Nathan Lambert@natolambert

Why I think Anthropic's uneven safety policies with the release of Claude Fable 5 undermine the broader AI community's cohesion and accelerate us to more uncertainty and risk in AI's near-term evolution. https://www.interconnects.ai/p/claude-fable-5-and-new-ai-safety

20hViews 122Likes 2Bookmarks 1
rallio@w_bsun

I understand generic griping, but you are complaining about a company that has consistently been against open source, consistently had very restrictive terms of service, and consistently argued against diffusion of the cutting edge technology. You can dislike it all you want, but this is par for the course from Anthropic since the earliest days.

21hViews 119
Nathan Lambert@natolambert

@w_bsun Mostly I've given them a pass because it was mostly being annoying before and not taking action.

21hViews 85Likes 4
POM@peterom

@natolambert Fable agrees:

20hViews 76Likes 1
Kazba@Kazba22

@natolambert the tension between moving fast and holding the line was always going to crack something eventually

20hViews 20Likes 1
haro@harobuilds

@natolambert the irony is that every major lab ships safety comms that read like they were written for a different product than the one in the release notes. fable 5 isn't unique in that gap, it's just the most visible example right now

20hViews 1Likes 1