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Perplexity launched 'Personal Computer,' an AI platform that replaces traditional OS models with probabilistic goal completion, using deep web research to autonomously execute multi-step workflows and eliminate software fragmentation.
Notion rebuilt its AI system architecture with GPT-5 to enable autonomous AI agents that can reason, plan, and execute complete workflows across the platform. The new Notion 3.0 demonstrated 7.6% improvement over state-of-the-art models on user-aligned tasks and 100%+ improvement on multi-step structured tasks.