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Apple researchers developed RubiCap, a framework for training dense image captioning models that achieve state-of-the-art results at 2B, 3B, and 7B parameter scales. The 7B model outperforms models up to 72 billion parameters on multiple benchmarks including CapArena and CaptionQA, while the 3B variant matches larger 32B models, suggesting efficient dense captioning doesn't require massive scale.

Perplexity announced Personal Computer today, a cloud-based AI agent that runs on a continuously operating Mac mini to merge local applications with Perplexity's AI capabilities. The system operates 24/7, accessible from any device, and maintains integration with users' files and applications through a secure local connection.

Apple has asked Google to set up servers specifically for hosting a new Gemini-powered version of Siri that meets Apple's privacy requirements, according to The Information. This represents a deeper infrastructure partnership beyond the January announcement that Google's Gemini models would power upgraded Siri features.

Apple Intelligence, which automatically summarizes notifications and messages on hundreds of millions of devices, systematically generates stereotyped and hallucinated content according to an independent AI Forensics investigation. The analysis of over 10,000 AI-generated summaries reveals bias baked into the feature that pushes problematic assumptions to users unprompted.