San Francisco: Apple on Monday alleged that a defendant in its trade ‌secret case against ChatGPT creator OpenAI accessed a power converter circuit schematic while at OpenAI, according to a filing in U.S. federal ⁠court.

Apple alleged that Chang Liu, a former Apple senior system electrical engineer, accessed the circuit and trained an AI agent using proprietary Apple information in March 2026.

Apple says the new evidence came to light from a MacBook ‌computer ⁠OpenAI provided to Apple on August 21 as part of legal proceedings.

Apple is asking a U.S. federal court to ⁠expedite discovery proceedings in the trade secret case against OpenAI.

OpenAI has sought to dismiss ⁠Apple’s lawsuit, saying it is building products that are “entirely new.”

OpenAI did ⁠not immediately respond to a request for comment.