ProofHound

Web · Self-hosted · API · paid plans from $29/mo

Freedom report

Two barsScore 6.3

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedPlans, terms and facts published

ProofHound is ranked #14 of 29 in AI prompt generators on Freedom251. It runs on API, Self-hosted, Web. There is a free plan. Paid plans start at $29/mo.

ProofHound plans and pricing

All plans

Free Free $0 CNY 0 · per organization 3 projects · 1 member · 3 concurrent LLM calls · 5GB retained project storage · 200MB per dataset upload proofhound.org · 2 Oct 2026

Self-hosted open source Free Free forever Full core capabilities · own infrastructure · custom model integration · private data storage · single workspace deployment · community support proofhound.org · 2 Oct 2026

Pro $29/mo Coming soon · planned $29/mo Unlimited projects and members under shared org quota · 50 concurrent LLM calls · 7-day workflow runtime · 50GB retained project storage · 2GB per dataset upload · full RBAC and integration channels · checkout not open yet proofhound.org · 2 Oct 2026

Compared on AI prompt generators

Free plan: Yes
Prompt testing: Yes

Best ProofHound alternatives

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The record

Purpose: ProofHound automates prompt optimization for LLM classification tasks by analyzing error cases, iterating prompts, validating results, and supporting deployment and rollback.
Dataset inputs: The product supports CSV, TSV, JSONL, JSON array, and ZIP dataset uploads, with flexible field mapping in the UI.
Optimization targets: Users can optimize overall accuracy or tune category-specific metrics such as recall for high-risk categories and precision for error-prone classes.
Version history: ProofHound records immutable prompt versions with variable configurations, output rules, and version differences.
Integrations: The site lists Web UI, Webhook, API Token, and MCP as connection options for business systems and AI agents.
Experiment audit: The platform records prompt versions, datasets, model configurations, sample judgments, and overall and category metrics for traceable and reproducible experiments.
Production controls: ProofHound supports gray traffic release, A/B testing, full rollout, and one-click rollback for prompt deployments.
Security and data control: The self-hosted edition supports private deployment and private data storage on the user's own infrastructure; hosted data is retained until user deletion subject to plan quota.
Model usage: Customers bring their own model provider, and ProofHound says it does not charge per model call.
Support: The site lists GitHub, Discord, a Chinese-speaking QQ group, and email for community discussion, product updates, and business contact.
Roadmap: Evaluation, comparison, and optimization for generative LLM tasks and ProofHound Cloud Managed Enterprise Edition are listed as upcoming.
Price from: $29/mo

Where it ranks on Freedom251

Best AI Prompt Generators in 2026#14 of 29
Best Prompt Management Software in 2026#11 of 26
Best AI Prompt Management Software in 2026#14 of 25

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Sources

proofhound.org· checked 2 Oct 2026