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Venture Funding

Arena, valued at $3.1bn, wants to grade AI safety

Arena, which runs a crowdsourced AI model leaderboard, raised $200m at a $3.1bn valuation on Thursday and previewed an alignment index for AI agents. It says annualised revenue exceeds $100m, and it sells evaluation services to model developers it also ranks.

OCTOBER 11, 2026
AI Models

Eight hundred seventy million for a model that writes nothing

TypeSafe AI's Jev answers questions in typed values, not sentences. Weeks after its launch the company has raised $870m at a $7.5bn valuation, and its investor and its founder disagree about how many of the Fortune 500 already use it.

OCTOBER 10, 2026
Developer Tools

Augment Code sells its software factory

Harness has bought the products and the team of Augment Code, the AI coding startup that came out of stealth in 2024 with $252m at a valuation just under $1bn. Neither side disclosed a price, and the deal does not appear to cover the whole company.

OCTOBER 9, 2026
Venture

Stoke raises a billion for reuse

A company that has not yet reached orbit has now raised $2.3bn on the argument that the second stage has to come back too.

SEPTEMBER 21, 2026
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