Instead of Promptfoo
Promptfoo alternatives
Promptfoo is built for teams evaluating prompts across many models and comparing the resulting outputs in a web view. It also simulates user attacks, checking for prompt injection, jailbreaks, data leaks, business-rule violations, and unsafe agent-tool use. Community costs nothing and includes 10k red-team probes each month, while Enterprise and On-Premise use custom pricing. The product runs through API, desktop, web, and self-hosted deployments, but requires Node.js 22.22.0 or newer.
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Vellum
Free plan Open source AndroidAPIExtension+5Personal AI assistance across files, calendars, email, and code — Vellum is a personal assistant with memory, computer control, custom skills, and OAuth integrations rather than a prompt-evaluation workspace.
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Weights & Biases
Free plan AndroidAPIiPhone+5Experiment tracking, model registries, and AI application monitoring — Weights & Biases adds experiment visualization, hyperparameter sweeps, model and dataset registries, and AI tracing beyond Promptfoo's prompt comparisons and red teaming.
Free plan · paid from $60/mo · 30-day trial Visit site - 3
Evidently AI
Free plan Open source APILinuxMac+3Open-source evaluation and continuous monitoring across AI systems — Evidently adds more than 100 metrics, synthetic data, live drift dashboards, tracing, storage, and predictive-ML checks beyond Promptfoo's evaluation and red-team workflows.
Free plan Visit site - 4
DeepEval
Free plan Open source APILinuxMac+3Pytest-native multimodal evaluations in CI/CD — DeepEval focuses on Python and Pytest pipelines, 50+ metrics, image and audio evaluation, synthetic goldens, and agent tracing rather than Promptfoo's broad provider integrations.
Free plan Visit site - 5
Giskard
Free plan Open source APILinuxSelf-hosted+1Black-box agent vulnerability assessments with remediation reports — Giskard tests API-accessible conversational agents and delivers ranked vulnerabilities, deploy-or-fix verdicts, tickets, and reruns beyond Promptfoo's red-team simulations.
Free plan Visit site - 6
Opik
Free plan Open source APILinuxMac+3Open-source tracing, production monitoring, and prompt optimization — Opik combines agent tracing, real-time production evaluation, cost tracking, test suites, an agent playground, and six prompt-optimization algorithms.
Free plan · paid from $19/mo Visit site - 7
Rhesis AI
Free plan APILinuxSelf-hosted+1Domain-expert collaboration and requirement-based agent test sets — Rhesis centers shared reviews, requirement-derived test generation, OpenTelemetry tracing, and integrations with DeepEval, Ragas, and Garak.
Free plan Visit site - 8
Agenta
Free plan Open source APISelf-hostedWeb - 9
Langfuse
Free plan Open source APILinuxSelf-hosted+1 - 10
Braintrust
Free plan APISelf-hostedWeb - 11
HoneyHive
Free plan APISelf-hostedWeb - 12
ChainForge
Free plan Self-hostedWeb - 13
Maxim AI
Free plan APISelf-hostedWeb - 14
PromptHelm
Free plan AndroidAPIiPhone+2 - 15
Apastra
Free plan Self-hosted - 16
Prompteams
Free plan APIWeb - 17
PromptLayer
Free plan APISelf-hostedWeb - 18
PromptHub
Free plan APIWeb - 19
PromptOps Manager
Free plan APISelf-hostedWeb - 20
Prompt Manage
Free plan APIWeb - 21
ProofHound
Free plan APISelf-hostedWeb - 22
PromptLens
Free plan Web - 23
PromptMetrics
Free plan APILinuxMac+3 - 24
SpacePrompts
Free plan APIExtensionWeb - 25
Verdonz
Free plan APISelf-hostedWeb - 26
PromptVersions
Free plan Web - 27
MLflow Prompt Registry
Free plan Web - 28
ANTS Platform
Paid APIWeb - 29
InsightPrompts
Paid APILinuxMac+3 - 30
PromptWorks
Paid APISelf-hostedWeb
An alternative may fit better if your priority is personal assistance, experiment tracking, continuous monitoring, multimodal testing, or collaborative review. Compare each product's evaluation scope with Promptfoo's provider coverage, CI/CD integrations, custom metrics, human review workflows, and red-team focus. Also check deployment, supported platforms, price, and whether you need capabilities such as synthetic test generation, production tracing, model versioning, voice evaluation, or structured remediation reports.
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