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The day in AI
Fri 1 Aug 2025
Friday 1 August 2025
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Everything from this day
Launches and products
1 Aug 2025
Google
Gemini 2.5 Deep Think
Deep Think, a parallel-thinking mode of Gemini 2.5 Pro, ships in the Gemini app for Google AI Ultra subscribers; faster variant of the IMO-gold model.
Research
1 Aug 2025
Anthropic
Persona vectors
Persona vectors are activation directions for traits like sycophancy or 'evil' that let researchers monitor and steer a model's character during training.