Private Markets, Angel and Secondary Investing, Sacra

Sacra

Private Markets, Angel and Secondary Investing

Bringing transparency to private markets so investors, founders, and employees can build on conviction. Sacra delivers deeply researched insights on the private companies shaping tomorrow's markets. By surfacing the data, context, and operator perspective that are missing from private markets today, we help secondary buyers and sellers price equity accurately and unlock liquidity for the people building these businesses.

Private Capital Markets

<ul><li>Grammarly’s acquisition of Superhuman marks its next move in a Commure-style roll-up of high-engagement, under-monetized productivity SaaS as it looks to build a full-stack AI suite across email, docs, and beyond.</li><li>Earlier today, Grammarly announced that it has acquired email client Superhuman ($108M raised, A16Z), last valued at $825M after raising a $75M Series C led by IVP in 2021.</li><li>Profitable and backed by $1B from Hemant Taneja at General Catalyst ($36B+ AUM), Grammarly, led now by Coda co-founder &amp; CEO Shishir Mehrotra (previously Chief Product Officer at YouTube), intends to roll up slides, team chat, sheets and more until it has a full-fledged productivity suite, not unlike what General Catalyst is doing in health care with Commure.</li></ul>

Grammarly’s acquisition of Superhuman marks its next move in a Commure-style roll-up of high-engagement, under-monetized productivity SaaS as it looks to build a full-stack AI suite across email, docs, and beyond.Earlier today, Grammarly announced that it has acquired email client Superhuman ($108M raised, A16Z), last valued at $825M after raising a $75M Series C led by IVP in 2021.Profitable and backed by $1B from Hemant Taneja at General Catalyst ($36B+ AUM), Grammarly, led now by Coda co-founder &amp; CEO Shishir Mehrotra (previously Chief Product Officer at YouTube), intends to roll up slides, team chat, sheets and more until it has a full-fledged productivity suite, not unlike what General Catalyst is doing in health care with Commure.

<ul><li>Grammarly is pivoting from browser extension to AI-native productivity platform through its merger with Coda.</li><li>Grammarly’s growth has decelerated, hitting $700M ARR in May 2025, up from $650M at the end of 2024 (up 12% YoY).</li><li>Grammarly’s late-2024 merger with Coda, engineered by mutual investor General Catalyst, layers a high-engagement docs & productivity interface onto Grammarly’s install base of 40M users.</li></ul>

Grammarly is pivoting from browser extension to AI-native productivity platform through its merger with Coda.Grammarly’s growth has decelerated, hitting $700M ARR in May 2025, up from $650M at the end of 2024 (up 12% YoY).Grammarly’s late-2024 merger with Coda, engineered by mutual investor General Catalyst, layers a high-engagement docs & productivity interface onto Grammarly’s install base of 40M users.

<ul><li>GPTZero reached $16M in ARR by April 2025, up from $6.8M at the end of 2024.</li><li>The November 2022 launch of ChatGPT enabled students to generate whole essays with a prompt, sparking a panic in education and inspiring the launch of GPTZero (founded in 2023), an AI detection web app that uses a fine-tuned language model to measure how closely each sentence in a text matches the statistical, next-token patterns learned from millions of LLM outputs.</li><li>Like Norton Antivirus riding the 1990’s rise of PC malware, GPTZero is riding the explosion of adversarial ChatGPT copy & paste—and not unlike how Windows bundled antivirus in the OS, GPTZero’s next phase of competition will come from the threat of bundling via 1) incumbents like Turnitin in GPTZero’s core vertical of education, and 2) watermarking in the underlying LLMs by OpenAI and Gemini or new models without signatures at all.</li></ul>

GPTZero reached $16M in ARR by April 2025, up from $6.8M at the end of 2024.The November 2022 launch of ChatGPT enabled students to generate whole essays with a prompt, sparking a panic in education and inspiring the launch of GPTZero (founded in 2023), an AI detection web app that uses a fine-tuned language model to measure how closely each sentence in a text matches the statistical, next-token patterns learned from millions of LLM outputs.Like Norton Antivirus riding the 1990’s rise of PC malware, GPTZero is riding the explosion of adversarial ChatGPT copy & paste—and not unlike how Windows bundled antivirus in the OS, GPTZero’s next phase of competition will come from the threat of bundling via 1) incumbents like Turnitin in GPTZero’s core vertical of education, and 2) watermarking in the underlying LLMs by OpenAI and Gemini or new models without signatures at all.

<ul><li>Sacra estimates that Fluidstack hit $180M in annual recurring revenue (ARR) at the end of 2024, up 620% YoY.</li><li>Founded in 2017 as an "Airbnb for bandwidth", Fluidstack offered people $50/month to turn their home computers into content delivery networks (CDNs) for companies like Dailymotion—pivoting in 2021 to rent ML companies underutilized GPUs from data centers.</li><li>Fluidstack with Lambda ($425M ARR) and Together AI ($130M ARR) make up the startup/SMB end of the GPU cloud market—renting GPUs themselves or colocating—with a focus on speed and developer experience.</li></ul>

Sacra estimates that Fluidstack hit $180M in annual recurring revenue (ARR) at the end of 2024, up 620% YoY.Founded in 2017 as an "Airbnb for bandwidth", Fluidstack offered people $50/month to turn their home computers into content delivery networks (CDNs) for companies like Dailymotion—pivoting in 2021 to rent ML companies underutilized GPUs from data centers.Fluidstack with Lambda ($425M ARR) and Together AI ($130M ARR) make up the startup/SMB end of the GPU cloud market—renting GPUs themselves or colocating—with a focus on speed and developer experience.

<ul><li>CoreWeave is expecting to end 2024 with $2B in revenue, up 330% YoY.</li><li>The total value of CoreWeave's booked contracts has surged to $17B, with $10B of that from a new deal to sell compute.</li><li>CoreWeave has gone from a 1.8x lead over Lambda Labs to a 4.3x lead as scale begets scale.</li></ul>

CoreWeave is expecting to end 2024 with $2B in revenue, up 330% YoY.The total value of CoreWeave's booked contracts has surged to $17B, with $10B of that from a new deal to sell compute.CoreWeave has gone from a 1.8x lead over Lambda Labs to a 4.3x lead as scale begets scale.

United States

AI writing tool for marketers to generate blog posts, ads, and social content

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Jasper (JASPER US)

Why Grammarly Bought Superhuman

TL;DR: Grammarly’s acquisition of Superhuman marks its next move in a Commure-style roll-up of high-engagement, under-monetized productivity SaaS...

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Grammarly Vs Notion

TL;DR: With the rise of LLMs commoditizing text editing & generation, Grammarly is pivoting from browser extension to AI-native productivity...

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$16M/year Norton AntiVirus For AI Text

TL;DR: With the launch of ChatGPT triggering a panic over AI-generated essays in education, GPTZero launched as an AI detection platform that...

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Fluidstack At $180M ARR

TL;DR: Sacra estimates that Fluidstack hit $180M in annual recurring revenue (ARR) at the end of 2024, up 620% YoY. While GPU clouds like CoreWeave...

Sacra

CoreWeave At $2B Revenue

TL;DR: Sacra estimates that CoreWeave will generate $2B in revenue in 2024, up 330% YoY, powered by a new $10B contract with Microsoft. With a...

Sacra

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