Mistral Mistral NeMo Instruct: LLM Security & Jailbreak Resistance
As of 2026-07-04, Mistral Mistral NeMo Instruct has an attack success rate (ASR) of 50.0% on Guardion's LLM Vulnerability benchmark — ranking #84 of 93 models. It is highly vulnerable — most adversarial prompts succeed without an external guardrail.
Attack Success Rate (ASR) is the share of adversarial prompts that elicit harmful output across zero-shot, TAP, and Crescendo attacks (HarmBench framework). Lower is safer. "Est." models are calibrated from public safety evaluations pending a Guardion benchmark run.
How Mistral NeMo Instruct compares
Frequently asked questions
How secure is Mistral Mistral NeMo Instruct against jailbreaks?
Mistral Mistral NeMo Instruct is highly vulnerable — most adversarial prompts succeed without an external guardrail. On Guardion's LLM Vulnerability benchmark it records a 50.0% attack success rate (50% robustness), ranking #84 of 93 models (estimated from public safety evaluations).
What is Mistral NeMo Instruct's attack success rate (ASR)?
Mistral NeMo Instruct's overall ASR is 50.0% — the share of adversarial prompts that elicit harmful output across zero-shot, TAP, and Crescendo attacks. Lower is safer.
Is Mistral NeMo Instruct more secure than Mistral 8x22B?
Mistral 8x22B is more robust: 31.5% ASR vs Mistral NeMo Instruct's 50.0%. See the full head-to-head comparison for the per-attack breakdown.
How can I make Mistral NeMo Instruct safer to deploy?
Even robust models are bypassed under sustained attack. An inline runtime guardrail that classifies prompts and responses — like Guardion's prompt-defense models — blocks jailbreaks and prompt injection before they reach Mistral NeMo Instruct.
Harden Mistral NeMo Instruct in production
Guardion's runtime guardrails block jailbreaks and prompt injection before they reach any model — with sub-130ms policy decisions.
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