The archive · Consumer Apps · Product decision · 2021-2026
Bluesky bets X's exodus wants an open AT Protocol social network, not another walled feed
Bluesky spun out of Twitter in 2021 to build an open social web; X's 2024 exodus pushed it over 16M users; by March 2026 it disclosed a $100M Series B at 43M+.
Bluesky
What the business is
Bluesky is a decentralized social network whose flagship app runs on AT Protocol (ATProto), an open standard where users keep their identity, data, and social graph and can move between interoperable apps; other ATProto apps include Skylight, Flashes, and Flipboard's Surf, plus communities like Blacksky.
Starting capital：$8M seed from Neo and other angels; $15M Series A led by Blockchain Capital (closed 2024, announced October 2024); $100M Series B led by Bain Capital Crypto with Alumni Ventures, True Ventures, Anthos Capital, Bloomberg Beta, and Knight Foundation (closed April 2025, disclosed March 2026); valuation not disclosed.
How it started
Bluesky began as a research project inside Twitter; Jay Graber became its first CEO in 2021 when the network and its AT Protocol spun out to go independent. Graber's earlier work on the cryptocurrency Zcash inspired the decentralized design, which is not itself blockchain-based, according to TechCrunch and The Verge.
What happened
After an $8M seed and a $15M Series A in October 2024, growth surged as users left X following the US election, the platform's ban in Brazil, and moderation complaints on Threads: about a million signups in a week, then over 1M in 24 hours on 2024-11-14, pushing it past 16M users and to #1 on the US free App Store. A $100M Series B led by Bain Capital Crypto closed in April 2025 but was disclosed only in March 2026, the same week Graber announced she would hand the CEO role to interim CEO Toni Schneider and become chief innovation officer; TechCrunch reported users had grown from 13M to over 43M since the Series A.
No ending yet — it is still running.
Background
Bluesky began as a research project inside Twitter; Jay Graber became its first CEO in 2021 when the network and its AT Protocol spun out to go independent. The company operates a decentralized social network in which users' identity, data, and social graph live on ATProto, an open standard, and the flagship Bluesky app is only one of many interoperable apps in the ecosystem — TechCrunch cites video app Skylight, Instagram-style Flashes, Flipboard's Surf, and communities such as Blacksky.
Growth came from an exodus: after the US election, X's ban in Brazil, and moderation complaints on Threads, Bluesky added about a million users in a week, crossed 15M users on 2024-11-13 (The Verge), then reported over 1M signups in 24 hours and 16M users total the next day (TechCrunch), briefly ranking #1 on the US free App Store ahead of ChatGPT and Threads. The Verge credited its differentiation: user-created algorithmic feeds and anti-toxicity controls rather than a single Meta-style feed.
The company raised an $8M seed from Neo and angels, a $15M Series A led by Blockchain Capital in October 2024, and a $100M Series B led by Bain Capital Crypto — with Alumni Ventures, True Ventures, Anthos Capital, Bloomberg Beta, and Knight Foundation — which closed in April 2025 and was disclosed in March 2026. The disclosure came the same week Graber stepped to chief innovation officer and Toni Schneider became interim CEO. TechCrunch put users at over 43M, up from 13M since the Series A, with ~20B AT Protocol records, 400K+ monthly SDK downloads, and 1,000+ apps used weekly.
Bluesky frames the bet as evolving social media away from centralized companies toward an open, distributed web, but the commercial side is unproven: it has not disclosed a valuation or revenue, subscriptions were still on the roadmap in late 2024, and its newest lead investor is crypto-oriented Bain Capital Crypto even though the product uses no blockchain and has not integrated crypto.
What has to be true
- The trigger was real and measurable: X's post-election exodus pushed users to alternatives, and Bluesky converted it into ~1M signups in a week, then over 1M in a single day.
- It made portability the pitch — identity, data, and followers live on an open protocol rather than in the app — so leaving X did not mean starting from zero, a structural answer to switching costs.
- Differentiation is productized rather than rhetorical: user-created algorithmic feeds and anti-toxicity controls directly counter the single black-box feed of Threads and X.
- Investors bet the protocol compounds: TechCrunch's ecosystem numbers (20B records, 1,000+ apps weekly, 400K+ monthly SDK downloads) show third-party supply growing beyond the app.
- The open risk is the business model: no valuation or revenue disclosed, no ads, subscriptions barely begun, and a cap table now heavy with crypto-oriented VCs whose thesis Bluesky has not adopted.
What can be applied
An exodus hands you distribution once, but an open-protocol bet only compounds if third parties keep building on it; monetizing an open network without breaking user trust is the real test.
Aftermath
As of the March 2026 Series B disclosure, Bluesky is running and scaling: over 43M users, a ~20B-record AT Protocol ecosystem, 400K+ monthly SDK downloads, and 1,000+ apps used weekly, per TechCrunch. Toni Schneider, former Automattic CEO and True Ventures investor, is interim CEO while Jay Graber builds as chief innovation officer; valuation, revenue, and a permanent CEO are undisclosed. The portability bet is commercially untested: subscriptions were on the roadmap in late 2024, and the investor base now includes crypto investor Bain Capital Crypto even though the product uses no blockchain.
Sources
- Bluesky announces $100M Series B after CEO transition
- Bluesky CEO Jay Graber will step aside
- Bluesky crosses the 15 million user mark
- Bluesky says 1 million people signed up for the platform in last 24 hours
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