{"data":{"slug":"nvidia-rubin-cpx","etype":"chip","name":"NVIDIA Rubin CPX","cat":"AI Accelerator","subtitle":"A context-processing accelerator: GDDR7 instead of HBM, built for prefill.","summary":"Announced September 2025, Rubin CPX splits inference in two: a cheaper GDDR7-based chip handles the compute-heavy prefill over million-token contexts while HBM-rich Rubin GPUs handle bandwidth-heavy token generation. It is the clearest sign that inference hardware is specializing by phase. Targeted for end of 2026.","attrs":[{"g":"Overview","l":"Designer","v":"NVIDIA"},{"g":"Overview","l":"Announced","v":"September 2025; targeted end of 2026"},{"g":"Overview","l":"Status","v":"Announced"},{"b":"Vendor claim","g":"Memory","l":"Memory","v":"128 GB GDDR7 (no HBM)"},{"b":"Vendor claim","g":"Compute","l":"NVFP4 (announced)","u":"PFLOPS","v":"~30"},{"b":"Vendor claim","g":"Overview","l":"Role","v":"Disaggregated prefill / context processing in Vera Rubin racks"}],"kf":{"year":2026,"class":"AI Accelerator","memory":"128 GB GDDR7","designer":"NVIDIA"},"aliases":["Rubin CPX","CPX"],"ticker":null,"exchange":null,"hq":null,"founded":null,"website":null,"status":"Announced","region":null,"asof":"2026-01-15","sources":[{"url":"https://nvidianews.nvidia.com/news/nvidia-unveils-rubin-cpx-a-new-class-of-gpu-designed-for-massive-context-inference","label":"NVIDIA Rubin CPX announcement"}]},"meta":{"found":true,"count":1,"served_from":"site cache (no live upstream calls)","as_of":"2026-10-14T06:00:47+00:00","disclaimer":"Research and information only — not investment advice. Structured records carry basis labels (vendor spec / reported / estimate); market quotes are delayed/indicative.","attribution":"Records compiled from vendor documentation, official filings and reputable public reporting; market quotes via financial data providers. See /data-sources."}}