{"id":"runtime-llm-firewall","slug":"runtime-llm-firewall","name":"Runtime LLM firewall / AI WAF","shortName":"LLM firewall","problemStatement":"Inline policy enforcement on inputs/outputs (PII, jailbreaks, topic blocks) as a firewall layer in front of every model call.","whenNotTopPick":"Prompt-injection-only (Lakera), OSS validators (Guardrails AI), or gateway-native guards (Portkey).","categoryIds":["cat-observability"],"depotPickProviderId":"arthur-ai","depotPickRationale":"Distinct from `prompt-injection-firewall`: broader runtime WAF/policy. Confidence: medium — Arthur packaging/pricing.","runnersUpIds":["lakera","guardrails-ai","cisco-ai-defense","portkey"],"weights":{"capabilityFit":0.2,"pricePerformance":0.1,"latencyReliability":0.12,"developerDx":0.1,"privacyPosture":0.3,"lockInRisk":0.08,"maturity":0.1},"methodologyNotes":"Distinct from `prompt-injection-firewall`: broader runtime WAF/policy. Confidence: medium — Arthur packaging/pricing.","tags":["firewall","waf","safety","guardrails"],"depth":{"whenNotToUse":{"text":"Prompt-injection-only (Lakera), OSS validators (Guardrails AI), or gateway-native guards (Portkey).","source":"editorial `whenNotTopPick` (data/jtbds.json)"},"whenNotToUseReason":null,"runnerUp":{"providerId":"lakera","name":"Lakera Guard","overallForJob":8.25,"pickOverallForJob":7.8,"beatsPickOn":["capabilityFit","latencyReliability","developerDx","privacyPosture"],"source":"first resolvable entry of the job's editorially ranked `runnersUpIds`; scores are stored job-weighted scores"},"runnerUpReason":null,"lockIn":{"pickLockInRisk":4.5,"runnerUpLockInRisk":5.5,"scale":"0–10 stored curated estimate; higher = more lock-in (worse)","pickExitSignals":[],"runnerUpExitSignals":[],"pickNotes":[],"selfHostFallback":[],"migration":"The pick has lower stored lock-in risk than runner-up Lakera Guard (4.5 vs 5.5).","migrationReason":null,"derivedFrom":"stored lockInRisk scores, provider tags (oss, self-host, openai-compat, open-models), free rows that list this job, and verbatim provider notes. No migration guide was invented."}},"freshness":{"pick":{"score":{"asOf":"2026-09-14","ageDays":43,"stale":true,"staleAfterDays":30,"reason":null},"lastReviewed":{"asOf":"2026-09-14","ageDays":43,"stale":true,"staleAfterDays":30,"reason":null},"sourceCheck":{"checkedAt":"2026-10-27","sourceUrls":2,"sourcesReachable":2,"pricingRows":0,"pricingRowsReconfirmed":0,"note":"A source re-check confirms the page is reachable and, for pricing rows, that the stored amount and SKU name appear on it. It does not re-derive or change the score.","reason":null}}}}