Best Promptfoo Alternatives · 2026. 

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 features

Limitations: Python only, ~20 attacks (vs 249), no firewall/gateway/prompt IDE

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 tracing

Limitations: Zero attack plugins, no built-in eval scorers, no compliance

EU-focused AI red teaming with 40-50 probes and dynamic multi-turn agents. SOC 2 Type II certified.

Best for: EU enterprises needing adaptive red teaming with SOC 2 certification

Limitations: 40-50 probes, 10-15 scorers, no firewall/tracing/gateway

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

Best for: Teams wanting simple eval-only workflows

Limitations: Closed source, no security testing, no self-host

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

Best for: Security researchers wanting CLI-based probing

Limitations: CLI only, no eval, no dashboard, 37 probes

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

Best for: Teams already invested in Databricks ecosystem

Limitations: ~12 scorers, no security testing, SaaS requires Databricks

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

Best for: Teams using only OpenAI models

Limitations: OpenAI only, no red teaming, vendor locked