Synthesia

Higgsfield raises $400M Series B at $5.4B valuation

Higgsfield announced a $400 million Series B round at a $5.4 billion valuation, eight months after being valued at $1.3 billion. Founded in 2023 by former Snap executive Alex Mashrabov, the company provides AI tools for creating images and video and reports $700 million in annualized revenue, 30 million users across 200 countries, and enterprise deals with 390 Fortune 500 companies. DST Global led the round, joined by Goldman Sachs Alternatives, Valor Capital and Tribe Capital. The funding will be used for hiring, product development and compute capacity, with the company citing the high compute intensity of video AI and competition from firms like Synthesia and Runway.

Anthropic adds invisible watermark to Claude outputs

Anthropic will embed an invisible SynthID-Text watermark (Google DeepMind) into future Claude text outputs to meet the EU AI Act Transparency Code. The watermark encodes patterns via specific token choices rather than added tokens or hidden content, is designed to be imperceptible and not to identify users, and can be detected only by holders of a verification key. Light edits may not fully remove the pattern, while complete rewrites can; generated code will be less strongly marked. Anthropic plans a text watermark-detection API and will attach C2PA-based content credentials to images. The rollout is global at launch with regional scoping. The measure aligns with EU labeling rules that took effect on 2026-08-02; Anthropic signed the EU transparency code in July 2026 alongside roughly 190 other providers. The announcement has spurred mixed reactions online.

King’s Cross Becomes a Global AI Hub

King’s Cross in London has transformed into a major global AI cluster since DeepMind moved there in 2016. The area—often called the “Knowledge Quarter”—hosts firms including OpenAI, Anthropic, Synthesia and others, and has attracted startups, VCs and academic institutions. According to Dealroom and Knight Frank data cited in the article, roughly 3,600 AI startups in London have driven significant fundraising and office leasing activity (over $12.1B raised and more than 1 million square feet leased since June). Rising rents, near-zero vacancy and concerns about AI model access (Anthropic shutting off Mythos and Fable) have prompted conversations about local compute and AI sovereignty. Investors and founders quoted say the cluster improves access to talent, capital and infrastructure but raises questions about building durable domestic AI capabilities.