ProofHound

Input—per 1M tokens

Output—per 1M tokens

Context—tokens

WeightsClosed

About

ProofHound is ranked #5 of 25 in prompt management software on Inferse. It runs on API, Self-hosted, Web. There is a free plan. Paid plans start at $29/mo.

Compared on prompt management software

Free plan: Yesproofhound.org
Prompt testing: Yesproofhound.org

Facts

Purpose: ProofHound automates prompt optimization for LLM classification tasks by analyzing error cases, iterating prompts, validating results, and supporting deployment and rollback.proofhound.org · 2 Oct 2026
Dataset inputs: The product supports CSV, TSV, JSONL, JSON array, and ZIP dataset uploads, with flexible field mapping in the UI.proofhound.org · 2 Oct 2026
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.proofhound.org · 2 Oct 2026
Version history: ProofHound records immutable prompt versions with variable configurations, output rules, and version differences.proofhound.org · 2 Oct 2026
Integrations: The site lists Web UI, Webhook, API Token, and MCP as connection options for business systems and AI agents.proofhound.org · 2 Oct 2026
Experiment audit: The platform records prompt versions, datasets, model configurations, sample judgments, and overall and category metrics for traceable and reproducible experiments.proofhound.org · 2 Oct 2026
Production controls: ProofHound supports gray traffic release, A/B testing, full rollout, and one-click rollback for prompt deployments.proofhound.org · 2 Oct 2026
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.proofhound.org · 2 Oct 2026
Model usage: Customers bring their own model provider, and ProofHound says it does not charge per model call.proofhound.org · 2 Oct 2026
Support: The site lists GitHub, Discord, a Chinese-speaking QQ group, and email for community discussion, product updates, and business contact.proofhound.org · 2 Oct 2026
Roadmap: Evaluation, comparison, and optimization for generative LLM tasks and ProofHound Cloud Managed Enterprise Edition are listed as upcoming.proofhound.org · 2 Oct 2026