Langtail is an LLMOps platform designed to streamline the development of AI-powered applications, currently available in public beta. It offers a suite of features to debug prompts, run tests, and monitor production environments, significantly speeding up the AI development workflow.
The platform allows users to fine-tune prompts and settings quickly, with advanced features like support for variables, tools, and vision built-in. Instant feedback on prompt changes and a comprehensive version history make iteration faster and more efficient.
Langtail's testing capabilities enable users to modify prompts and rely on a test suite to ensure app stability, benchmark different prompt versions, and upgrade models confidently. Deployment is simplified by allowing prompts to be published as API endpoints, decoupling prompt development from app development, and supporting separate preview, staging, and production environments.
In production, Langtail provides detailed API logging, a metrics dashboard for aggregated prompt performance data, and tools for problem detection by monitoring user interactions. This ensures that engineering and AI teams can maintain high performance and reliability.
The platform also features a no-code playground for non-technical users, adjustable parameters for fine-tuning LLM behavior, and collaborative tools for team workflows. Langtail is praised by users for making prompt refinement easier and more efficient, ultimately helping teams build AI apps with fewer surprises.
Langtail offers three pricing plans: Free, Pro, and Enterprise. The Free plan, ideal for solopreneurs or very small teams, costs $0/month + VAT and includes unlimited users, 5 prompts, 1,000 logs per month, and community support. The Pro plan, best for growing teams, is priced at $99/month + VAT, offering unlimited users and prompts, 10,000 logs per month, and both in-app and email support. The Enterprise plan is customized for large organizations, featuring everything in the Pro plan plus unlimited logs, SAML Single-Sign-On (SSO), custom billing, dedicated support, and personalized onboarding.
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