Igor Costa
11K posts

Igor Costa
@igorcosta
Building @Autohandai , former @Microsoft, @GitHub, @AWS.











Its the beginning of the end of subsidized AI subscriptions. GH Copilot is moving to usage-based billing, as has Claude (for business customers.) Fair to assume more will follow. I expect this change will also be a great boost for open models - cheaper, and pretty good already



FT Exclusive: A Trump administration official says Chinese entities are stealing from American AI labs. ft.trib.al/YC428xg


Structural Innovation & Ultra-High Context Efficiency 🔹 Novel Attention: Token-wise compression + DSA (DeepSeek Sparse Attention). 🔹 Peak Efficiency: World-leading long context with drastically reduced compute & memory costs. 🔹 1M Standard: 1M context is now the default across all official DeepSeek services. 4/n




How does prompt optimization compare to RL algos like GRPO? GRPO needs 1000s of rollouts, but humans can learn from a few trials—by reflecting on what worked & what didn't. Meet GEPA: a reflective prompt optimizer that can outperform GRPO by up to 20% with 35x fewer rollouts!🧵










