With the performance gains they're claiming, I wonder if they implemented the Casual Encoder-Decoder technology from DeepSeek 4.1's paper.
I could see them accomplishing it and seeing gains like this in roughly the correct timeframe, and when I heard about that development I assumed the frontiers would probably jump on it.
How it works: <a href="https://miraflow.ai/blog/deepseek-v4-1-flash-causal-encoder-decoder-explained-2026" rel="nofollow">https://miraflow.ai/blog/deepseek-v4-1-flash-causal-encoder-...
Unless they already have something similar of their own, which is always possible, they'd be stupid not to. I don't suppose we'll ever know, though. It would not be a good look if after the trillions of dollars that have been thrown at US labs, investors found out that they're down to copying Chinese tech.
techjamie · · focus · HN ↗
I could see them accomplishing it and seeing gains like this in roughly the correct timeframe, and when I heard about that development I assumed the frontiers would probably jump on it.
How it works: <a href="https://miraflow.ai/blog/deepseek-v4-1-flash-causal-encoder-decoder-explained-2026" rel="nofollow">https://miraflow.ai/blog/deepseek-v4-1-flash-causal-encoder-...
Balinares · · focus · HN ↗