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The day in AI
Mon 29 Dec 2025
Monday 29 December 2025
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Launches and products
29 Dec 2025
Meta / Manus
Meta acquires Manus
Meta agrees to buy Singapore-based Manus for about $2B; Manus says it has over $100M ARR and will keep running independently.
Research
29 Dec 2025
Stanford / NVIDIA / Astera / UC Berkeley / UCSD
End-to-End Test-Time Training for Long Context (TTT-E2E)
A sliding-window Transformer keeps learning on its context at test time via next-token prediction, matching full-attention scaling with constant latency (2.7x faster at 128K).