LA
Last Week in AI
4/1/2026
LWiAI Podcast #238 - GPT 5.4 mini, OpenAI Pivot, Mamba 3, Attention Residuals
TL;DR
OpenAI shipped GPT-5.4 mini and nano models, improving speed and capability over prior releases while increasing costs up to 4x—signaling a shift toward premium pricing for better performance. The podcast also covers Mamba 3 and Attention Residuals as architectural innovations. DLSS 5 applies generative AI filtering for real-time video game rendering, representing broader industry adoption of generative AI beyond language models.
- •OpenAI released GPT-5.4 mini/nano with improved speed and capability, but pricing increased up to 4x
- •Mamba 3 and Attention Residuals represent emerging architectural research directions
- •DLSS 5 brings generative AI to real-time game rendering, expanding AI applications beyond language
Generated with AI, which can make mistakes.
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