Runway, the Nvidia-backed AI company valued at $5 billion, is launching a major expansion in London, the firm told CNBC. The move places it alongside U.S. AI giants Anthropic and OpenAI, which have also announced big growth plans in the city.

The expansion signals London's growing appeal as a hub for artificial intelligence talent and investment. For Runway, which focuses on generative AI tools, establishing a larger presence in Europe's largest tech ecosystem could accelerate product development and hiring.

The company did not disclose specific financial terms or job targets for the London office. However, the expansion follows a pattern of U.S. AI firms deepening roots in the UK, drawn by its research base and regulatory environment.

This could intensify competition for local AI talent and pressure on London's commercial real estate market. It also reinforces the UK government's efforts to position the country as a global AI leader post-Brexit.

Critics, however, note that London's high costs and visa complexities may temper the pace of such expansions. Whether Runway can sustain its momentum amid rising competition remains an open question.