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I built a deterministic <0.1ms AI prompt-injection firewall (and seeded an open $5.00+ USDC bounty)

This story is from 2026-10-18. It is preserved in the archive; the latest stories are on the live feed.

Most LLM guardrails (like Llama Guard or NeMo) add 500ms–1500ms of latency per call. For real-time autonomous AI agents, that delay kills the user experience. I built CanaryGuard : a deterministic heuristic firewall that inspects inputs in What it Catches Chat-template delimiter smuggling ( [INST]…

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  1. 2026-10-18 20:25 · DEV Community — AI
    I built a deterministic <0.1ms AI prompt-injection firewall (and seeded an open $5.00+ USDC bounty)

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