Canadian venture capital firm Radical Ventures launched a new $550M fund to back artificial intelligence startups.  The firm has raised half the target amount already. Radical typically invests in startups at early stages.  The fund is backed by former Google CEO Eric Schmidt's family office, neural networks pioneer Geoffrey Hinton, and ImageNet project creator Fei-Fei Li.  Other backers include Condé Nast's parent group Advance, Singapore's sovereign investment fund Temasek, and Canadian pension fund CPPIB.  Radical closed its debut fund at $350M in 2019.  Notable AI-driven startups in its current portfolio include OpenAI rival Cohere, Reka, and AI-powered search engine You.com.  Reka is formed by former engineers from Alphabet-owned DeepMind.  Pitchbook data shows that generative AI sector startups secured $1.4B in venture funding last year, matching the cumulative total of the previous five years