Sergey Brin, co-founder of Google, has returned to the tech giant and is heavily involved in its artificial intelligence (AI) initiatives. Brin confirmed his return during a fireside chat at the All-In Summit, where he discussed his role in advancing Google’s AI efforts and the company’s approach to building a more unified AI model.

Brin, who stepped down as president of Google’s parent company Alphabet in 2019, revealed that he is now working at Google “pretty much every day,” focusing primarily on AI. He highlighted the company’s pursuit of a “more unified model” of AI, diverging from the previous strategy of developing separate models for different tasks.

In the past, Google used specialized AI models for specific functions, such as chess or image generation. However, Brin indicated a shift towards creating integrated models that share architectures and capabilities across various applications. While he refrained from using the term “God model,” he acknowledged the goal of developing shared architectures and models that could streamline and enhance AI functionalities.

Brin addressed the challenges associated with this ambitious goal, noting that while unified AI systems require substantial computational resources, recent advancements in algorithms have accelerated progress in ways that may not always align with computational increases. He also mentioned the high demand for AI training resources, which has led Google to turn away potential cloud customers due to capacity constraints.

Despite these advancements, Brin admitted that not all AI projects have been successful. He referenced the problematic launch of Google’s Gemini image generator, which produced historically inaccurate images, as an example of learning from failure. Brin emphasized the importance of taking risks and putting AI out into the world, even if it means facing criticism or making mistakes. “Is this something magical that we’re giving the world?” he asked. “As long as we communicate it properly and acknowledge that we might get things wrong, we should put it out there and let people experiment.”

Google has continued to roll out AI-powered products, including enhancements to Search, Gmail, and Docs, as well as a new AI system to assist with unemployment benefits in Nevada. Brin’s renewed focus on AI reflects Google’s commitment to innovation and its strategy to tackle both the opportunities and challenges presented by rapidly evolving technology.