Caleb Peffer (Hiring!)

@CalebPeffer

Co-founder and CEO @firecrawl ️‍🔥 intelligence is nothing without courage

San Francisco

firecrawl.dev

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Caleb Peffer (Hiring!)
@CalebPeffer
Aug 19, 2025
Excited to announce @firecrawl's $14.5M Series A 🔥 We've grown 15x in the past 12 months. The demand for clean web data in AI is real. Here's the story of how we built the web data layer for AI - starting from a side project to powering how 350k+ builders get web data 🧵
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Caleb Peffer (Hiring!)
@CalebPeffer
20h
yes. I would build a datacenter in my backyard
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Caleb Peffer (Hiring!)
@CalebPeffer
20h
There are two types of alignment 1. technical - does the model follow our instructions and match our values? 2. societal - is there an ecosystem of models that check and balance the others? societal is the harder one, because it has to be an emergent property of how society adopts the models Most smart people in SF are focused on 1, but I think 2 is much more important / difficult problem
roon
@tszzl
Nov 12
we should not like a future where there are 1 to 2 AIs and the rest are illegal. we should want a cambrian explosion of the types and possibilities of minds, experiencing new joys and thinking new thoughts. ensuring that this is compatible with human flourishing is only step 1
Caleb Peffer (Hiring!)
@CalebPeffer
21h
60x higher limits WHAT!!!!!
Firecrawl
@firecrawl
21h
Introducing Firecrawl MCP v3. Give your agents access to all of the knowledge they need. → 3000+ tools with automatic provider waterfalls → 60x higher rate limits → 4x more usage → Spawn subtasks for parallel work Available now for every harness. alexandria.firecrawl.dev/go/mcp
Caleb Peffer (Hiring!)
@CalebPeffer
Nov 11
Lets talk about "hype shielding" I've spent years trying to convince smart people super-intelligence is imminent Their skepticism almost always boils down to: "i've seen people tell me that things were gonna change, and it was bs, therefore this is bs" This "hype shielding" is functional its also blinding you Think from first principles
Matt Post
@mjpost
Nov 11
Replying to @AndyMasley
I am not sure that I am not just arguing from personal incredulity, but among other aspects, there is something about the combination of confidently-shared fantastical scenarios (boiling away the ocean) that makes me dismissive.
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