Reka AI's Rho-1 unifies text, images, video, and robot co…

OpenAI is introducing a new ad format inside ChatGPT that displays product carousels to US users while the image generation process loads. The placement targets a natural pause in the user experience - the wait time between submitting a prompt and receiving a generated image. It marks one of OpenAI's more concrete moves toward advertising as a revenue stream alongside its subscription tiers.

Reka AI has released Rho-1, a 19-billion-parameter model that handles text, images, video, and robot control actions within a single neural network. Rather than routing different tasks to specialized subsystems, it processes all modalities as tokens in one shared context window. The model was trained on 320 H100 GPUs over roughly three months, using considerably less compute than many leading models today.