Caleb Peffer (Hiring!)

@CalebPeffer

Co-founder and CEO @firecrawl ️‍🔥 Prompting humans and machines. Be the best version of yourself.

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
Oct 23
It also assumes the game isn't iterative Defense hardens over time as exploits are discovered
Teortaxes▶️ (DeepSeek 推特🐋铁粉 2023 – ∞)
@teortaxesTex
Oct 23
About damn time. Attackers do not hold the advantage forever. This will be a rough transitional period where Elden Software, crafted by faulty human minds, dies out. After that, a very different era begins.
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Caleb Peffer (Hiring!)
@CalebPeffer
Oct 8
"Lets train our AI's to work just like all the companies that failed and sold for parts" seems like adverse selection
anita
@anitakirkovska
Oct 8
such an interesting launch. couple of thoughts on two themes I’m seeing in the market rn: 1/ there are so many companies like Replay and Micro1 trying to purchase proprietary data from wound-down companies. That data can then be used to improve performance at the model level,
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Hone
@hone
Oct 8
Today Hone launches Engines: AI that owns business outcomes. Chatbots give answers. Agents do tasks. Engines deliver outcomes, and we hold them responsible for creating real value, measured in actual dollars instead of tokens or vibes. You point it at a business metric, and the
Caleb Peffer (Hiring!)
@CalebPeffer
Oct 3
Claude: Until we fix this, you can do that by hand... Me: NO
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Caleb Peffer (Hiring!)
@CalebPeffer
Oct 1
People enrichment is live in Alexandria One API, every provider, your agent picks the best source and gets a verified answer back LFG
Firecrawl
@firecrawl
Oct 1
Introducing the People Enrichment Pack. Apollo, FullEnrich & Data Legion are live in Alexandria, so your agents can: - Find buyers and their work emails - Find talent by skills and job history - Get company size and funding Try it in Claude, ChatGPT or the Firecrawl API today!
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