Meta says its AI model 'Watermelon' rivals OpenAI's flagship model

Meta Superintelligence Labs chief Alexandr Wang said its flagship AI model, codenamed "Watermelon", has reached a performance level comparable to OpenAI's GPT-5.5 on internal benchmark tests, Business Insider reported. "Watermelon…next model after Avocado is [under] training…[and] uses…order of magnitude more compute than 'Avocado'," he said, referring to Meta's internal codename for "Muse Spark".