HumanSignal vs. promptfoo Comparison


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About HumanSignal's Label Studio Enterprise is a comprehensive platform designed for creating high-quality labeled data and evaluating model outputs with human supervision. It supports labeling and evaluating multi-modal data, image, video, audio, text, and time series, all in one place. It offers customizable labeling interfaces with pre-built templates and powerful plugins, allowing users to tailor the UI and workflows to specific use cases. Label Studio Enterprise integrates seamlessly with popular cloud storage providers and ML/AI models, facilitating pre-annotation, AI-assisted labeling, and prediction generation for model evaluation. The Prompts feature enables users to leverage LLMs to swiftly generate accurate predictions, enabling instant labeling of thousands of tasks. It supports various labeling use cases, including text classification, named entity recognition, sentiment analysis, summarization, and image captioning.	About Promptfoo discovers and eliminates major LLM risks before they are shipped to production. Its founders have experience launching and scaling AI to over 100 million users using automated red-teaming and testing to overcome security, legal, and compliance issues. Promptfoo's open source, developer-first approach has made it the most widely adopted tool in this space, with over 20,000 users. Custom probes for your application that identify failures you actually care about, not just generic jailbreaks and prompt injections. Move quickly with a command-line interface, live reloads, and caching. No SDKs, cloud dependencies, or logins. Used by teams serving millions of users and supported by an active open source community. Build reliable prompts, models, and RAGs with benchmarks specific to your use case. Secure your apps with automated red teaming and pentesting. Speed up evaluations with caching, concurrency, and live reloading.
Platforms Supported Windows Not Supported Mac Not Supported Linux Not Supported Cloud Supported On-Premises Not Supported iPhone Not Supported iPad Not Supported Android Not Supported Chromebook Not Supported	Platforms Supported Windows Not Supported Mac Not Supported Linux Not Supported Cloud Supported On-Premises Not Supported iPhone Not Supported iPad Not Supported Android Not Supported Chromebook Not Supported
Audience AI/ML teams needing a solution for data labeling, model evaluation, and prompt engineering, enabling them to create high-quality labeled data and assess model outputs with human supervision	Audience Developers in need of a solution to test and secure their LLM apps
Support Phone Support Supported 24/7 Live Support Not Supported Online Supported	Support Phone Support Supported 24/7 Live Support Not Supported Online Supported
API Offers API Supported	API Offers API Not Supported
Screenshots and Videos View more images or videos	Screenshots and Videos View more images or videos
Pricing $99 per month Free Version Supported Free Trial Supported	Pricing Free Free Version Supported Free Trial Not Supported
Reviews/Ratings Overall 0.0 / 5 ease 0.0 / 5 features 0.0 / 5 design 0.0 / 5 support 0.0 / 5 This software hasn't been reviewed yet. Be the first to provide a review: Review this Software	Reviews/Ratings Overall 0.0 / 5 ease 0.0 / 5 features 0.0 / 5 design 0.0 / 5 support 0.0 / 5 This software hasn't been reviewed yet. Be the first to provide a review: Review this Software

Training Documentation Supported Webinars Supported Live Online Supported In Person Supported	Training Documentation Supported Webinars Not Supported Live Online Supported In Person Supported
Company Information HumanSignal Founded: 2019 United States humansignal.com	Company Information promptfoo United States www.promptfoo.dev/
Alternatives Label Studio	Alternatives Openlayer
Ango Hub iMerit	LayerLens
Alegion	Latitude
OCI Data Labeling Oracle	ChainForge
Sapien View All	Langfuse View All
Categories Data Annotation Supported Data Labeling Supported LLM Evaluation Supported	Categories LLM Evaluation Supported

Integrations OpenAI Supported Amazon S3 Supported Amazon Web Services (AWS) Supported Cake AI Not Supported Claude Not Supported Google Cloud Platform Supported Google Cloud Storage Supported HTML Supported Hugging Face Supported JavaScript Supported Meta AI Supported Microsoft Azure Supported Netguru Omega Not Supported Show More Integrations View All 10 Integrations	Integrations OpenAI Supported Amazon S3 Not Supported Amazon Web Services (AWS) Not Supported Cake AI Supported Claude Supported Google Cloud Platform Not Supported Google Cloud Storage Not Supported HTML Not Supported Hugging Face Not Supported JavaScript Not Supported Meta AI Not Supported Microsoft Azure Not Supported Netguru Omega Supported Show More Integrations View All 4 Integrations
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