This market will resolve to "Yes" if Apple publicly announces a partnership with either OpenAI or Anthropic to use their AI models (such as ChatGPT or Claude) for enhancing or powering Siri on Apple devices by December 31, 2025, 11:59 PM ET. Otherwise, this market will resolve to "No". The partnership must directly address Siri or voice assistant integration. General AI partnerships unrelated to Siri or non-specific mentions will not count. The resolution source will be a consensus of credible reporting.