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Meta Platforms, Inc. (NASDAQ:META) has repeatedly delayed the release of its proprietary Muse Spark AI model API to developers, threatening the timeline for monetizing its substantial AI infrastructure investments, The WSJ said on June 3, 2026
The API was initially scheduled alongside the model’s April launch, but was delayed due to testing bugs in addition to infrastructure requirements. Meta Platforms, Inc. (NASDAQ:META)’s chief AI officer, Alexandr Wang, previously stated the API was coming soon. Based on the article’s sources, the company is expected to launch the model in June.
The proprietary model represents a shift from open-source software, and as per the company’s internal benchmark evaluations, it competes against Anthropic and OpenAI. However, the WSJ noted that the delays are causing anxiety about the company’s projected $145 billion in capital expenditure. In a separate development, Meta Platforms, Inc. (NASDAQ:META) launched Instagram Plus, a global optional subscription upgrade on June 4, 2026.