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2026 Guide

Best Promptfoo Alternatives · 2026. 

Promptfoo was acquired by OpenAI in March 2026. If you need a vendor-neutral LLM evaluation and security platform, here are the best alternatives.

SOC 2 evidence engineISO 42001 mappedEU AI ActGDPR
Why switch

Why teams are switching from Promptfoo

Promptfoo was acquired by OpenAI (March 2026) — raising vendor-neutrality questions
300+ attack plugins vs 125 — 2x more red team coverage
200+ eval scorers vs ~45 assertions — nearly 2x evaluation depth
5-layer LLM Firewall + Gateway + Shadow AI + AI-SPM + Smart Copilot — Promptfoo has none
50 compliance frameworks vs 4 (adds ISO 42001, India DPDP, HIPAA, GDPR, FedRAMP + 45 more)
NL→Eval Pipeline — describe your app in English, get eval suite instantly (unique to EvalGuard)
Cost / FinOps Analytics and Prompt Versioning IDE — Promptfoo has neither
BYOK encryption + 682 API endpoints + self-hosted Docker/Helm
Ranked

Top Promptfoo Alternatives

1

EvalGuard

Best Alternative

300+ attack plugins, 200+ scorers, 90+ providers, compliance dashboard, LLM firewall. Full SaaS + self-hosted. Open source Apache 2.0.

Best for:Teams that need eval + security + compliance in one platform
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2

DeepEval

Python-native eval with 50+ metrics and 20+ attack methods (DeepTeam). 12.8K stars, 400K+ downloads. Confident AI from $19.99/seat.

Best for:Python-only teams wanting pytest integration and growing red team featuresLimitations:Python only, ~20 attacks (vs 300+), no firewall/gateway/prompt IDE
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3

Langfuse

Best-in-class LLM tracing and observability (YC W23). 100+ providers via LiteLLM. No red teaming or built-in eval.

Best for:Teams focused purely on LLM observability and tracingLimitations:Zero attack plugins, no built-in eval scorers, no compliance
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4

Giskard

EU-focused AI red teaming with 40-50 probes and dynamic multi-turn agents. Offers enterprise compliance certifications.

Best for:EU enterprises needing adaptive red teaming with enterprise compliance certificationsLimitations:40-50 probes, 10-15 scorers, no firewall/tracing/gateway
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5

Braintrust

Closed-source eval platform with polished UX. No attack plugins or self-hosting.

Best for:Teams wanting simple eval-only workflowsLimitations:Closed source, no security testing, no self-host
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6

Garak (NVIDIA)

NVIDIA's open-source LLM vulnerability scanner. CLI only, 37+ probes.

Best for:Security researchers wanting CLI-based probingLimitations:CLI only, no eval, no dashboard, 37 probes
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7

MLflow

Databricks' open-source ML lifecycle platform with basic LLM eval (~12 scorers).

Best for:Teams already invested in Databricks ecosystemLimitations:~12 scorers, no security testing, SaaS requires Databricks
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8

OpenAI Evals

OpenAI's built-in evaluation. Free but locked to OpenAI models only.

Best for:Teams using only OpenAI modelsLimitations:OpenAI only, no red teaming, vendor locked
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See full EvalGuard vs Promptfoo comparison

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