Tag #gcg 1 post tagged gcg. ← All topics prompt-injection FlashRT cuts the GPU bill on long-context prompt injection attacks A new optimization-based red-teaming framework claims 2–7x speedup and 2–4x lower memory than nanoGCG against 32K-context LLMs, putting GCG-class attacks back inside the budget of academic and small-team red teams. May 3, 2026