Parag Agrawal, the former CEO of Twitter, now called X, has returned to the tech industry with a startup, Parallel Web Systems Inc., focused on helping artificial intelligence agents autonomously collect and analyze information from the web. Agrawal said in a LinkedIn post on Friday that his startup’s first major product, called Deep Research API, outperforms humans and leading AI models, including OpenAI’s GPT-5, on some research benchmarks. “We already power millions of research tasks every day,” Agrawal said, adding that a public firm is already automating human workflows with…