{"slug":"lakera-guard","name":"Lakera Guard","domain":"lakera.ai","verdict":"As of 2026-07-14, ChatGPT, Claude, Gemini, Grok collectively rank Lakera Guard first for llm security tool (one of 4 leaderboards it appears on). Source: https://modelsagree.com/product/lakera-guard (modelsagree.com, CC BY 4.0).","best_rank":1,"categories":4,"brief":{"category":"best-llm-security-tool","title":"Best LLM security tool","rank":1,"of":10,"top":null,"day":"2026-07-16","why":[{"t":"prompt injection detection","m":["ChatGPT","Claude","Gemini","Grok"],"q":"strong direct and indirect prompt-injection detection"},{"t":"low-latency API","m":["ChatGPT","Claude","Gemini","Grok"],"q":"sub-100ms API"},{"t":"real-world threat intelligence","m":["Claude","Gemini","Grok"],"q":"massive real-world attack corpus from Gandalf"},{"t":"easy production integration","m":["ChatGPT","Claude","Gemini","Grok"],"q":"easy integration without heavy custom engineering"}],"gap":[],"fix":[{"t":"managed filter can be bypassed","m":["ChatGPT"],"q":"It is a probabilistic managed filter, not a complete authorization or egress-control system, and sophisticated attacks can still bypass it."},{"t":"data privacy and residency concerns","m":["Claude","Gemini","Grok"],"q":"SaaS-based architecture raises data privacy compliance concerns for strictly on-prem workloads"},{"t":"commercial self-hosting costs","m":["Claude","Gemini","Grok"],"q":"self-hosted tier, which is enterprise-priced and negotiated"}]},"entries":[{"slug":"best-llm-security-tool","title":"Best LLM security tool","rank":1,"of":10,"score":20,"appearances":4,"modelRanks":{"ChatGPT":1,"Claude":1,"Gemini":1,"Grok":1},"reason":"Best overall balance of strong direct and indirect prompt-injection detection, input/output screening, data-loss controls, low-friction API integration, and production-ready latency; ranked for teams wanting a focused runtime security layer without building one.","reasons":[{"model":"ChatGPT","reason":"Best overall balance of strong direct and indirect prompt-injection detection, input/output screening, data-loss controls, low-friction API integration, and production-ready latency; ranked for teams wanting a focused runtime security layer without building one."},{"model":"Claude","reason":"Best-in-class prompt injection detection trained on the massive real-world attack corpus from Gandalf, delivered as a sub-100ms API that screens direct and indirect injection plus PII/data-leak signals in outputs; Check Point's 2025 acquisition adds enterprise staying power without (so far) killing the standalone product. Assumption: the typical practitioner wants a drop-in inline check with vendor-maintained detection, not a DIY classifier."},{"model":"Gemini","reason":"Extremely fast, low-latency API-first security firewall. It leverages massive, real-time threat intelligence from their Gandalf application community to stay ahead of novel, evolving prompt injection attacks. Best for high-throughput enterprise applications where latency budgets are tight and managed APIs are preferred."},{"model":"Grok","reason":"WHY: Leading runtime LLM firewall with proven low-latency API/ SDK for real-time prompt injection, jailbreak, PII, and data exfiltration detection in production customer-facing apps; strong real-world adoption (Fortune 500), low false positives (~0.01% claimed), threat intelligence, and easy integration without heavy custom engineering.  FIX: Commercial SaaS/API (with self-hosted options) — not ideal for teams requiring full open-source control or zero external data routing."}],"fixes":[{"model":"ChatGPT","fix":"It is a probabilistic managed filter, not a complete authorization or egress-control system, and sophisticated attacks can still bypass it."},{"model":"Claude","fix":"Commercial SaaS in the request path — teams with strict data-residency or no-third-party-prompt rules need the self-hosted tier, which is enterprise-priced and negotiated."},{"model":"Gemini","fix":"SaaS-based architecture raises data privacy compliance concerns for strictly on-prem workloads, and has high commercial subscription costs."},{"model":"Grok","fix":"Commercial SaaS/API (with self-hosted options) — not ideal for teams requiring full open-source control or zero external data routing."}],"updated":"2026-07-14","rank_history":{"days":["2026-07-13","2026-07-14"],"ranks":[1,1]},"api":"https://modelsagree.com/api/v1/best/best-llm-security-tool.json"},{"slug":"best-ai-agent-security-platform","title":"Best AI agent security platform","rank":2,"of":11,"score":13,"appearances":3,"modelRanks":{"Claude":1,"Gemini":1,"Grok":3},"reason":"Best-in-class real-time prompt-injection and jailbreak detection fed by the Gandalf attack-data flywheel, low-latency drop-in API plus PII/data-leakage screening, and enterprise staying power since the 2025 Check Point acquisition; assumes the typical practitioner wants an accurate managed runtime detector over a DIY framework.","reasons":[{"model":"Claude","reason":"Best-in-class real-time prompt-injection and jailbreak detection fed by the Gandalf attack-data flywheel, low-latency drop-in API plus PII/data-leakage screening, and enterprise staying power since the 2025 Check Point acquisition; assumes the typical practitioner wants an accurate managed runtime detector over a DIY framework."},{"model":"Gemini","reason":"Provides ultra-low latency, model-agnostic API filtering against prompt injections and data leaks powered by their massive Gandalf adversarial threat intelligence database."},{"model":"Grok","reason":"Real-time API-focused protection optimized specifically for prompt injection, jailbreaking, and data leakage in LLM apps; low-latency, easy integration as a security layer with strong adversarial robustness in comparisons."}],"fixes":[{"model":"Claude","fix":"Detection-centric SaaS, not a full agent-governance suite — teams needing deep tool-call policy enforcement, fully self-hosted deployment, or bundled scanning/red-teaming must add other pieces, and its roadmap now rides on Check Point integration."},{"model":"Gemini","fix":"Acts primarily as a boundary filter, offering less native governance over complex agent actions, browser automation, or non-human identity permissions."},{"model":"Grok","fix":"More narrow API-guard focus; less depth in programmable agent workflows or full conversation orchestration compared to NeMo."}],"updated":"2026-07-15","rank_history":{"days":["2026-07-13","2026-07-15"],"ranks":[1,3]},"api":"https://modelsagree.com/api/v1/best/best-ai-agent-security-platform.json"},{"slug":"best-llm-guardrails-tool","title":"Best LLM guardrails tool","rank":3,"of":9,"score":11,"appearances":3,"modelRanks":{"Claude":2,"Gemini":3,"Grok":2},"reason":"Best-in-class detection of prompt injection and jailbreaks with single-digit-to-tens-of-ms latency, continuously retrained on the Gandalf attack corpus — the strongest pure security guardrail you can drop in via one API call, and Check Point's 2025 acquisition gave it enterprise staying power. Near-tie with Guardrails AI: pick Lakera if your primary risk is adversarial attack, Guardrails AI if it is malformed or off-policy output.","reasons":[{"model":"Claude","reason":"Best-in-class detection of prompt injection and jailbreaks with single-digit-to-tens-of-ms latency, continuously retrained on the Gandalf attack corpus — the strongest pure security guardrail you can drop in via one API call, and Check Point's 2025 acquisition gave it enterprise staying power. Near-tie with Guardrails AI: pick Lakera if your primary risk is adversarial attack, Guardrails AI if it is malformed or off-policy output."},{"model":"Grok","reason":"Leading low-latency hosted firewall excelling at prompt injection and jailbreak defense with 98%+ detection rates, PII protection, multi-language support, and easy SDK integration trusted by enterprises like Dropbox."},{"model":"Gemini","reason":"The leading commercial LLM firewall API offering outstanding, low-latency (sub-50ms) protection against prompt injections, jailbreaks, and data leakage, perfect for enterprise RAG."}],"fixes":[{"model":"Claude","fix":"Commercial SaaS focused on threats — it does not validate output structure, groundedness, or business rules, and self-hosting is enterprise-tier only."},{"model":"Gemini","fix":"Proprietary SaaS model with ongoing API costs and limited local customization or offline deployment options."},{"model":"Grok","fix":"Expand beyond injection focus to stronger programmable conversational and hallucination controls"}],"updated":"2026-07-13","rank_history":{"days":["2026-06-29","2026-06-30","2026-07-08","2026-07-09","2026-07-10","2026-07-12","2026-07-13"],"ranks":[3,2,2,3,null,3,4]},"reasoning_shift":[{"model":"Gemini","from":"2026-07-12","to":"2026-07-13","added":[{"t":"data leakage protection","q":"protection against prompt injections, jailbreaks, and data leakage"},{"t":"perfect for enterprise RAG","q":"perfect for enterprise RAG"},{"t":"limited local or offline deployment","q":"Proprietary SaaS model with ongoing API costs and limited local customization or offline deployment options."}],"dropped":[{"t":"adversarial attacks","q":"adversarial attacks"},{"t":"structured output validation and schema compliance","q":"Add built-in support for structured output validation and schema compliance to go beyond security scanning."}]},{"model":"Claude","from":"2026-07-12","to":"2026-07-13","added":[{"t":"strongest pure security guardrail","q":"the strongest pure security guardrail you can drop in via one API call"},{"t":"pick by primary risk","q":"pick Lakera if your primary risk is adversarial attack, Guardrails AI if it is malformed or off-policy output"},{"t":"self-hosting is enterprise-tier only","q":"self-hosting is enterprise-tier only"}],"dropped":[{"t":"continuously updated threat intelligence","q":"continuously updated threat intelligence"},{"t":"need a separate framework","q":"teams don't need to pair it with a separate framework"}]}],"api":"https://modelsagree.com/api/v1/best/best-llm-guardrails-tool.json"},{"slug":"best-llm-guardrails-platform","title":"Best LLM guardrails platform","rank":3,"of":9,"score":10,"appearances":3,"modelRanks":{"Claude":1,"Gemini":3,"Grok":4},"reason":"Best-in-class prompt-injection and jailbreak detection backed by the Gandalf attack dataset, low single-digit-millisecond latency at the API layer, and model-agnostic deployment (SaaS or self-hosted) that drops in front of any LLM stack — the strongest choice for a team that needs real security screening, not just output formatting; assumes the practitioner's primary concern is adversarial input, which is where most production incidents occur.","reasons":[{"model":"Claude","reason":"Best-in-class prompt-injection and jailbreak detection backed by the Gandalf attack dataset, low single-digit-millisecond latency at the API layer, and model-agnostic deployment (SaaS or self-hosted) that drops in front of any LLM stack — the strongest choice for a team that needs real security screening, not just output formatting; assumes the practitioner's primary concern is adversarial input, which is where most production incidents occur."},{"model":"Gemini","reason":"Best-in-class commercial runtime API for ultra-low latency prompt security, delivering exceptional accuracy against prompt injections, jailbreaks, and sensitive data exfiltration. Assumes direct API-based defense is preferred over self-managed open-source infrastructure. Near-tie with Prompt Security for enterprise runtime threat detection."},{"model":"Grok","reason":"Specialized real-time API with top-tier prompt injection/jailbreak detection (98%+ rates), low latency (<50ms), and strong PII/content moderation; proven value for production security teams prioritizing out-of-the-box threat blocking with minimal code changes."}],"fixes":[{"model":"Claude","fix":"Commercial pricing and a detection-focused scope — it won't structure outputs, enforce schemas, or ground responses; you still need separate tooling for output validation."},{"model":"Gemini","fix":"Closed-source SaaS cloud dependency with recurring API costs and potential data sovereignty friction for strictly air-gapped deployment environments."},{"model":"Grok","fix":"Commercial pricing and potential vendor dependency; NOT for fully open-source/self-hosted purists or those with highly custom policy needs requiring deep code-level control."}],"updated":"2026-07-19","api":"https://modelsagree.com/api/v1/best/best-llm-guardrails-platform.json"}],"page":"https://modelsagree.com/product/lakera-guard","check":"https://modelsagree.com/check?q=Lakera%20Guard","updated":"2026-08-10T18:18:45.051Z","attribution":"modelsagree.com, CC BY 4.0"}