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In an era where data privacy concerns loom large, a new approach in artificial intelligence (AI) could reshape how sensitive information is processed.

Now, Google is also launching a similar initiative, which aims to turn AI into a co-scientist that can accelerate scientific discoveries. The tech giant explains, "The AI co-scientist is a multi-agent AI system that is intended to function as a collaborative tool for scientists."

Welcome back to Week in Review. This week we're diving into OpenAI's newest, biggest model GPT-4.5, Microsoft pulling the plug on Skype, how Anthropic

Earlier this month, OpenAI CEO Sam Altman shared a roadmap for its upcoming models, GPT-4.5 and GPT-5. In the X post, Altman shared that GPT-4.5, codenamed Orion internally, would be its last non-chain-of-thought model. Other than that, the details of the model remained a mystery -- until today.

OpenAI researchers accused xAI about publishing misleading Grok 3 benchmarks. The truth is a little more nuanced.

Launched in November 2023 as a beta chatbot for X Premium users, Grok was designed to offer insightful, context-aware answers, with an emphasis on reasoning and adaptability. Despite being introduced as an early-stage product,

GPT-4.5, codenamed Orion, represents OpenAI's last "non-chain-of-thought" model before the company unifies its AI capabilities in GPT-5. It's been trained using synthetic data from the o1 reasoning model, which could explain the AGI-like qualities Altman reported. Grok-3, being so powerful at reasoning, seems to follow the same path.

Sonar is built on top of Meta's open-source Llama 3.3 70B. It is powered by Cerebras Inference, which claims to be the world's fastest AI inference engine. The model is capable of producing 1200 tokens per second.