# Lakera Guard vs Rebuff

**Leader by Vioscale score:** Lakera Guard

| Attribute | Lakera Guard | Rebuff |
|---|---|---|
| **Vioscale score** | 48.3 (55% (medium)) | 27.4 (31% (low)) |
| activity.commits_last_30d | - | 0 |
| adoption.dependent_repos | - | 1 |
| adoption.github_stars | - | 1,521 |
| deployment.options | `{"cloud":true,"self_hosted":true}` | `{"cloud":true}` |
| description.long | A cloud-native security platform designed for AI applications that intercepts both user inputs and model outputs to detect and prevent prompt injections, data leakage, jailbreaks, and compliance violations before they reach the LLM. | A framework that protects AI systems from prompt injection attacks through four defense mechanisms: input heuristics, LLM-based analysis, vector database pattern recognition, and canary token detection. Currently in alpha/prototype stage. |
| features.capabilities | `{"architecture_model":"managed_cloud_inline_proxy","prompt_injection_and_jailbreak_blocking":true,"inbound_pii_and_credit_card_masking_redaction":true,"sub_50ms_latency_guarantees_for_proxy_routing":true,"custom_regex_and_deterministic_denylist_rulesets":true}` | `{"architecture_model":"managed_cloud_inline_proxy","prompt_injection_and_jailbreak_blocking":true,"custom_regex_and_deterministic_denylist_rulesets":true,"zero_data_retention_and_prompt_privacy_guarantees":false}` |
| integrations.count | 2 | 3 |
| integrations.list | `[{"name":"Grafana"},{"name":"Splunk"}]` | `[{"name":"OpenAI"},{"name":"Supabase"},{"name":"Pinecone"}]` |
| language.primary | - | TypeScript |
| license.spdx | - | Apache-2.0 |
| market.availability | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"web":true}` | `{"cli":true,"web":true}` |
| pricing | `{"type":"free","freeTier":true,"sourceUrl":"https://www.lakera.ai","retrievedAt":"2026-08-21T11:09:56.803Z"}` | `{"type":"usage","summary":"Free tier available; credit-based usage pricing for scale","currency":"USD","freeTier":true,"sourceUrl":"https://github.com/pricing","retrievedAt":"2026-08-21T11:05:02.545Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | free | commercial |
| pricing.price_level | free | low |
| pricing.transparent | no | no |
| release.history | - | `[{"url":"https://github.com/protectai/rebuff/releases/tag/v0.1.1","date":"2024-01-20T01:11:48Z","type":"stable","version":"v0.1.1"},{"url":"https://github.com/protectai/rebuff/releases/tag/v0.1.0","date":"2024-01-20T01:03:53Z","type":"stable","version":"v0.1.0"},{"url":"https://github.com/protectai/rebuff/releases/tag/v0.0.6","date":"2024-01-20T00:48:23Z","type":"stable","version":"v0.0.6"}]` |
| security.gdpr | yes | - |
| security.soc2 | yes | - |
| security.vulnerabilities | - | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=rebuff&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (AI Guardrails)

| Capability | Lakera Guard | Rebuff |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Architecture model | Managed cloud inline proxy | Managed cloud inline proxy |
| Prompt injection and jailbreak blocking | ✓ | ✓ |
| Inbound pii and credit card masking redaction | ✓ | - |
| Outbound toxicity and competitor mention blocking | - | - |
| Hallucination and topical off brand drift detection | - | - |
| Sub 50ms latency guarantees for proxy routing | ✓ | - |
| Custom regex and deterministic denylist rulesets | ✓ | ✓ |
| Streaming token interception and chunked eval | - | - |
| Rag retrieval chunk poisoning defense | - | - |
| Zero data retention and prompt privacy guarantees | - | ✗ |
| SOC2 type ii | - | - |
| ISO 27001 | - | - |
| Pricing model | - | - |

*Source: Vioscale. Generated 2026-09-01T15:23:27.145Z. "-" = undocumented, not absent.*