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Large Language Models

Langtail

Low-code platform for testing and debugging AI applications and LLMs.

Source rating 5.0 (71) 3.9k views 3.9k/mo traffic 0 saves Freemium
Large Language Models Development Prompts(139)
More categories (10)
Language Models A/B testing Prompts Team collaboration LLM testing AI security Low-code platform Prompt engineering AI Debugging NLP
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Free + from $99 / month + VAT

Verdict

A quick read before you dig into the full page.

Best if
Low-code platform for testing and debugging AI applications and LLMs
Skip if
You need enterprise SLAs or a fully managed team plan right away
Pick this when
Freemium · Free + from $99 / month + VAT

Overview

Langtail is a low-code platform designed to help teams test and debug AI applications, particularly those powered by Large Language Models (LLMs). It offers features for comprehensive LLM testing, security, and collaboration across product, engineering, and business teams. Langtail provides a spreadsheet-like interface for easy testing, supports various LLM providers, and includes an AI Firewall for blocking attacks and unsafe outputs.

Langtail screenshot

Access & connections

Where you can use Langtail.

Platforms

Web

Capabilities

What this tool accepts, produces, and is strongest at.

Highlights

  • LLM Testing
  • AI Firewall
  • Prompt Management
  • Collaboration Tools
  • Data-driven Insights

FAQ 5

What is Langtail?
Langtail is a low-code platform designed to help teams test and debug AI applications, particularly those powered by Large Language Models (LLMs). It offers features for comprehensive LLM testing, security, and collaboration across product, engineering, and business teams. Langtail provides a spreadsheet-like interface for easy testing, supports various LLM providers, and includes an AI Firewall for blocking attacks and unsafe outputs.
How to use Langtail?
Langtail can be used to test LLM prompts with real-world data, score tests with natural language, pattern matching, or custom code, and experiment with models, parameters, and prompts. It integrates with major LLM providers and offers a TypeScript SDK for developers.
Can I try Langtail for free?
The pricing page indicates a free tier is available to start with small projects.
What are the benefits of using Langtail?
Langtail simplifies the development and testing of AI applications, enabling teams to focus on integrating AI features into their products. It also helps in ensuring predictable LLM app behavior and robust evaluation.
What LLM providers does Langtail support?
Langtail works with all major LLM providers, including OpenAI, Anthropic, Gemini, and Mistral.
Langtail Free + from $99 / month + VAT
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