EvalGuard vs Langfuse.
Best-in-class tracing, no red teamingLangfuse (YC W23) is the leading open-source LLM observability platform with best-in-class tracing, prompt management, token/cost tracking and an Evaluator Library built with Ragas. It supports 100+ providers via LiteLLM integration. It has no red teaming, no attack plugin library and no runtime firewall.
across the 12-row feature matrix · see “where Langfuse leads” below
Competitor data (GitHub stars, downloads, feature counts, funding / acquisition status) verified as of 2026-08-10. EvalGuard's own counts are sourced live from the drift-checked registry.
Coverage at a glance
EvalGuard vs Langfuse, by the numbers
Where both platforms publish a number, here's the gap. Our values come straight from the drift-checked registry; Langfuse's are quoted as published.
| Feature | EvalGuard | Langfuse |
|---|---|---|
| Red Team Plugins | 300+ | 0 |
| Eval Scorers | 200+ | Evaluator Library (Ragas partnership) + custom |
| LLM Providers | 90+ | 100+ (via LiteLLM) |
| Tracing | OpenTelemetry | Best-in-class |
| Prompt Management | Versioning IDE + Diff | Yes |
| Compliance | 50 framework mappings (no certifications) | SOC 2 Type II + ISO 27001 certified; no in-product mappings |
| LLM Firewall | 5-layer | No |
| LLM Gateway | Yes | No (integrates with LiteLLM, Helicone, APIM) |
| Cost Analytics | Spend, budgets, chargeback | Token + USD cost tracking and dashboards |
| Customer-managed encryption key | Yes | Keys encrypted at rest (server-held key) |
| NL→Eval Pipeline | Yes (unique in this guide) | No |
| Open Source | Apache 2.0 (SDKs + CLI) | MIT (ee/ dirs commercially licensed) |
Why choose EvalGuard over Langfuse
- 300+ red team plugins — Langfuse has zero security testing
- 200+ eval scorers as a first-party registry — Langfuse's Evaluator Library is smaller and leans on the Ragas partnership
- 5-layer firewall + LLM gateway — Langfuse ships neither and integrates with third-party gateways instead
- 50 compliance framework mappings with code-level controls — a different thing from Langfuse's SOC 2 Type II and ISO 27001, which are certifications EvalGuard does not hold
- NL→Eval pipeline for instant eval suite generation
Where Langfuse leads
- Langfuse has best-in-class tracing and observability depth
- Langfuse supports 100+ providers via LiteLLM integration
- Langfuse tracks token usage and USD cost with dashboards — this page said it had no cost analytics, which was wrong
- Langfuse Cloud holds SOC 2 Type II and ISO 27001 certifications, which EvalGuard does not
- Langfuse has a strong open-source community (YC W23 backed)
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