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Lakera

AI security platform — prompt injection defense, jailbreak detection, and runtime guardrails for production LLMs.

Professional
Pricing Tier
Medium
Learning Curve
days
Implementation
medium, large, enterprise
Best For
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Use when

Production LLM apps in regulated industries; AI agent products with elevated abuse risk (browser agents, code execution); enterprise rollouts requiring documented AI safety controls.

Avoid when

Internal-only LLM use with low-stakes outputs; experimentation phase before product-market fit; teams committed to building guardrails in-house.

What is Lakera?

Lakera is an AI security company focused on protecting LLM applications from prompt injection, jailbreaks, data exfiltration, and abuse. Their Gandalf AI security education game went viral in 2023 and produced one of the largest datasets of attempted attacks on LLMs, which now informs their Lakera Guard product. Series B raised $20M in 2024 from Atomico. Used by Citi, Dropbox, Allianz, and Reka.

Key features

Prompt injection and jailbreak detection
PII detection and redaction
Data leakage prevention
Toxicity and bias monitoring
Real-time runtime guardrails (proxy or SDK)
Lakera Red — automated AI red-teaming

Integrations

OpenAIAnthropicAWS BedrockAzure OpenAILangChain
💰 Real-world pricing

What people actually pay

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StackMatch EditorialVerdict: BuyUpdated May 1, 2026

AI security for production LLM apps that take it seriously

Editor's summary

Lakera Guard catches prompt injection, jailbreaks, PII leakage, and abuse in production LLM apps. The Gandalf game gave them the largest attack dataset in the field. Buy if you're running real LLM workloads in regulated or abuse-prone settings.

Lakera's competitive moat is unusual: their Gandalf AI security education game went viral in 2023, attracted 50M+ attempted attacks across all skill levels, and produced the largest publicly-known dataset of real-world LLM attack patterns. Lakera Guard is essentially a runtime layer that pattern-matches against that corpus, plus PII detection, toxicity classifiers, and configurable policy rules. The result: detection rates that beat homegrown guardrails substantially, especially for novel attacks.

The customer profile is right for the product. Citi, Dropbox, Allianz, and Reka use Lakera for production LLM workloads with elevated abuse risk or regulatory exposure. The deployment is meaningfully easier than building guardrails in-house: SDK or proxy mode, integrates with OpenAI / Anthropic / Bedrock / LangChain in a day. Lakera Red (automated red-teaming) is a separate product that's become useful for pre-launch security testing.

The weakness is overhead for low-risk applications. If your LLM use is internal-only with non-sensitive data, the runtime cost (latency + dollars + complexity) of Lakera Guard exceeds the marginal risk reduction. Buy Lakera for production LLM apps in financial services, healthcare, or government; for AI agents with elevated abuse risk (browser agents, code execution); or for any LLM-facing surface where prompt injection has meaningful blast radius. Skip for internal experimentation or low-stakes outputs.

Best for

Production LLM apps in regulated industries (financial services, healthcare, government); AI agents with elevated abuse risk.

Not for

Internal-only LLM use with low-stakes outputs, experimentation phase, or teams committed to in-house guardrails.

Written by StackMatch Editorial. StackMatch editorial reviews are independent analyst commentary, not user reviews. We have no affiliate relationship with this tool. See user reviews below for community perspective.

HONEST ALTERNATIVES

Before you buy Lakera

Vendors don't tell you about their competitors. We do — with verdicts attached when we have them.

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REAL COST CALCULATOR

What Lakera actually costs

Sticker price isn't the real cost. We add implementation, training, and a probability-weighted lock-in penalty.

1500
Subscription
$50/seat/mo × 50 × 36 mo
$90K
Implementation (one-time)
Days
$5K
Training (one-time)
$500/seat × 50 (medium curve)
$25K
Lock-in penalty
33% × moderate switching cost (year 3)
$5K
Real total cost (3-year)
~$42K per year
$125K
1.4× sticker. Vendor will quote ~$90K (subscription only). Real cost is $125K once implementation, training, and switching risk are priced in.
Heuristic — uses median industry rates. Negotiate to beat list pricing; the implementation and training estimates assume reasonable rollout.
NEGOTIATION TIMING

When to negotiate Lakera

Vendor sales pressure is non-uniform — quarter-close, year-end, and post-funding-round are your high-leverage windows.

HIGH LEVERAGE15 days to Q2 close

Strong negotiation window. Reps will push for end-of-quarter signature. Don't move first — let them initiate the discount. Target 15-30% off list plus negotiated terms.

Tier-specific leverage
Professional-tier has moderate negotiation room — annual commit + reference customer rights typically unlock 15-25% off list.
Q1
289d out
Q2
15d out
Q3
107d out
Q4
199d out
Calendar-quarter heuristic. Vendors on fiscal-year ≠ calendar may shift these windows; ask the rep what their fiscal year-end is.
BUYER'S QUESTION LIST

Take this to your sales call

10 questions vendor sales teams steer around — generated from Lakera's pricing tier, lock-in profile, and editorial verdict.

  1. 1
    PRICING
    Lakera is professional-tier on the public site. What's the discount path for medium-sized teams committing annually vs. monthly?
  2. 2
    PRICING
    What overages or seat-overflow charges should we plan for? Show me the worst-case bill if our usage grows 2x in year 1.
  3. 3
    CONTRACT
    Auto-renewal: how many days notice is required to terminate, and what happens if we miss the window? Will you commit to a renewal-reminder email at 90 and 60 days?
  4. 4
    MIGRATION
    Data export: what's the complete spec — format, frequency, and what data does the export NOT include? After contract end, how long do we have read-only access?
  5. 5
    MIGRATION
    Implementation runs days. Who from your team is included by default, and who do we add at additional cost? Is a CSM assigned?
  6. 6
    FIT
    Lakera is best for: Production LLM apps in regulated industries (financial services, healthcare, government); AI agents with elevated abuse risk.. We're [describe your situation]. Walk me through the failure modes if our profile doesn't match.
  7. 7
    FIT
    Connect us with 2-3 reference customers at our company size in Financial Services — not the case-study list, customers who've been live for 18+ months and have churned at least one tool from your stack.
  8. 8
    INTEGRATION
    Lakera lists 5 integrations including OpenAI, Anthropic, AWS Bedrock. Which of OUR existing tools — bring our list — have you confirmed shipping integration with versus "on roadmap"? Show me the actual status.
  9. 9
    VENDOR
    Track record over the last 18 months: any pricing model changes, executive departures, layoffs, M&A activity, or material customer churn we should know about?
  10. 10
    VENDOR
    If you're acquired or shut down, what's the contractual continuity — source-code escrow, data portability, transition period? Show me the actual clause.
Auto-generated from Lakera's structured profile. Edit before sending — you know your situation better than we do.
ANTI-DEMO CHECKLIST

What to actually test in the demo

Vendor sales teams script demos to maximize close rate. Here's what they'd rather you not test — derived from Lakera's lock-in profile and editorial verdict.

  1. 1
    PERFORMANCE
    Bring YOUR data, not their demo data. Insist on running the demo workflow against a sample of your real records, files, or queries. If they refuse — that's a signal.
  2. 2
    PERFORMANCE
    Lakera demo will be built around the happy path. Ask: "Show me what happens when [the most common failure mode in our context]" — make them improvise.
  3. 3
    EDGE CASES
    Push the limits live: largest dataset, longest workflow, most users concurrent. Vendors prep demos for medium loads — your real-world usage might 10x what they show.
  4. 4
    EDGE CASES
    Mobile and offline behavior: how does Lakera degrade on slow connections, on iPad, in airplane mode? Test in the demo if your team uses these surfaces.
  5. 5
    PRICING
    Model your worst-case bill: 2x the seats, 3x the usage. Show the exact dollar figure on screen during the demo. Refuse "we'll get back to you" — get the math live.
  6. 6
    INTEGRATION
    Vendors love their integration logo wall. Test the actual depth: pick the 2-3 (OpenAI, Anthropic-style) integrations you depend on most, and ask the rep to demo a real two-way data sync, not a marketing screenshot.
  7. 7
    INTEGRATION
    API and webhook reality check: rate limits, payload size limits, retry behavior, auth refresh handling. Ask for actual API docs in the demo, not "we'll send those."
  8. 8
    MIGRATION
    Demo the full data export workflow. Even with low lock-in, you want to see how clean the exit looks before signing.
  9. 9
    SUPPORT
    Submit a real support ticket DURING the demo. Use the actual support channel customers use, not the rep's email. Time the response. This is your most honest data point about post-sale reality.
  10. 10
    SUPPORT
    Ask to be connected with a customer in the demo who you can email TODAY (not "we'll arrange a reference call next week"). The vendor's confidence in their references is a tell.
Print it, bring it to the demo call, and check items off as you cover them. The rep noticing you have a list changes the energy.

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