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Reka AI has unveiled Rho-1, a 19-billion-parameter omni-model that processes and generates text, images, video, and robot control actions in a single neural network. Trained on 320 H100 GPUs in about three months, it uses a fraction of the compute of today's top models.

AI Models • The Decoder

OpenAI has launched the Decisions API in public beta, which evaluates text or images and returns typed answers up to 10x faster than the Responses API. The API is designed for tasks like classification, routing, and prioritization, and is expected to reach general availability in the coming months.

AI Infrastructure • Hacker News

OpenAI has launched a new Decisions API that classifies text and images about ten times faster than its Responses API, returning yes/no probabilities, category picks, or scale ratings. The company also cut its paid API tiers from five to three.

AI Models • The Decoder