The creator of claude code cut 80% of its system prompt for the new model — and it got better, not worse.

Boris Cherny's team revisits the system prompt every time a new model ships. With Opus 5, they removed roughly 80%. Why? A lot of those instructions existed to compensate

NorvexSep 122

Taking Out West into the desert.

My take on an Out West commercial for alchemistfrag. Opus 5 + Blender + Seedance 2.5. Porto pribadi, bukan kolaborasi resmi dengan Alchemist. itspolloai polloai_creator

FelioraSep 121

Claude Opus 5 -- A Game Changer

Prompt ↓

Alex roySep 121

We just built a lightweight harness to get Opus 5 to complete a task in the sim.

Tho this little bit costed us $0.203 💀 Up next, we plan to evaluate Kimi K3 , a Fable-class open-source model that's fine-tuned on our datasets to bring down inference time and cost.

Ansel DiasSep 1220