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Thursday, May 21, 2026
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Today’s top story
INDUSTRY
Anthropic to pay xAI $1.25 billion a month for Colossus compute
TechCrunch
A disclosure in SpaceX's newly public S-1 filing revealed that Anthropic has committed to pay xAI $1.25 billion per month through May 2029 for the full 300 megawatts of output from the Colossus 1 data center near Memphis. The arrangement could route more than $40 billion to xAI over the contract's life and gives Anthropic guaranteed capacity as it scales Claude training.
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Why it matters
It is one of the largest compute deals ever struck between two frontier labs and shows xAI monetizing overbuilt infrastructure ahead of its SpaceX-led IPO, while Anthropic locks in the hardware it needs to keep pace with OpenAI and Google.
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More headlines
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INDUSTRY
SpaceX files public S-1 targeting $1.75 trillion valuation in record IPO
SpaceX made its IPO prospectus public on May 20, disclosing rising revenue alongside heavy losses tied to its xAI merger and a $60 billion option to acquire AI coding startup Cursor 30 days after listing. The company plans to trade on Nasdaq under SPCX with a June 12 debut targeted.
Fortune
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INDUSTRY
Andrej Karpathy joins Anthropic's pre-training team
OpenAI co-founder and former Tesla AI lead Andrej Karpathy announced he is joining Anthropic this week, where he will help launch a team using Claude itself to accelerate pre-training research. The hire is a notable talent win for Anthropic amid intense competition for senior researchers.
CNBC
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RELEASE
Google I/O debuts Gemini 3.5, Omni world model, and Spark agent
At I/O 2026, Google introduced Gemini 3.5 Flash, a world model named Omni, and a general-purpose agent called Spark designed to take action across connected apps. The keynote framed Gemini's expansion into Search and the Antigravity dev platform as Google's bid to define the agentic era.
Google Developers Blog
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FUNDING
Exa raises $250 million Series C at $2.2 billion valuation
AI search startup Exa closed a $250 million Series C, lifting its valuation to $2.2 billion, with proceeds earmarked for training next-generation search models and scaling automated query infrastructure. The round signals continued investor appetite for verticalized retrieval layers that compete with traditional search APIs.
Tech Startups
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FUNDING
Armada lands $230 million Series B for modular AI data centers
Armada raised $230 million co-led by Overmatch, BlackRock, and 8090 Industries at a $2 billion valuation to expand its modular data centers for remote and edge environments. The company also signed a framework deal with Johnson Controls to manufacture units from a 400,000-square-foot Arizona factory.
Tech Startups
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This week in benchmarks
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vs. Saturday, May 16, 2026
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Intelligence
Kimi K2.6 fell from #7 to #9
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Intelligence
MiMo-V2.5-Pro fell from #8 to #10
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Intelligence
Gemini 3.5 Flash (high) entered the top 10 at #8
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Intelligence
Qwen3.7 Max entered the top 10 at #7
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Intelligence
Grok 4.3 (high) fell out of the top 10 (was #10)
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Intelligence
GPT-5.3 Codex (xhigh) fell out of the top 10 (was #9)
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Read past briefs and the live benchmarks at
ai-newsletter-eta-lemon.vercel.app.
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