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The standard way to keep an AI agent in line is to have a second AI read over its shoulder. Goodfire, the interpretability startup, has just shipped an alternative: monitors that watch what is happening inside a model's calculations while it works, instead of auditing the words it produces afterward.

Read more about Goodfire's Inside-Out Monitors: Reading an Agent's Mind Beats Reading Its Transcript

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Buried under this week's frontier-model headlines, Google DeepMind shipped something many working developers will get more practical use out of than any trillion-parameter announcement: EmbeddingGemma 2, a 740-million-parameter open embedding model released under Apache 2.0. It maps text, code, images, video, and audio into a single shared vector space, carries an 8K-token context window, and ships with modular text, vision, and audio encoders designed for on-device deployment.

Read more about Google's EmbeddingGemma 2: One Open Model for Text, Code, Images, and Audio

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In a week full of model launches, the most unusual announcement involved no model at all. OpenAI, Anthropic, and Google DeepMind have confirmed they spent several weeks coordinating on AI safety, jointly unveiling cyber-focused AI models, safeguards, and access programs developed collaboratively across the three labs. One report describes a formally announced joint standards body publishing common testing protocols for frontier models.

Read more about Rivals at One Table: OpenAI, Anthropic, and DeepMind Coordinate on AI Safety