AI Development Tools

OpenAI Playground is a web-based interface for experimenting with OpenAI's language models including GPT-4, GPT-4o, and o1. Test prompts, adjust parameters like temperature and tokens, compare model outputs side-by-side, and prototype AI applications before committing to API integration. Used by 2M+

LangWatch is an end-to-end AI agent testing, LLM evaluation, and observability platform used by thousands of AI engineering teams. It helps developers stress-test agents pre-production with synthetic simulations, run batch evaluations, monitor live LLM interactions, and optimize prompts using DSPy—a

Helicone is an open-source AI Gateway and LLM observability platform that helps developers build reliable AI applications. It provides unified access to 100+ AI models through a single SDK, intelligent routing, real-time tracing, and comprehensive monitoring across all providers. Trusted by 1000+ AI

Opik by Comet is an end-to-end LLM evaluation platform that helps AI developers debug, test, and continuously improve LLM-powered applications through comprehensive tracing, evaluation metrics, automated prompt optimization, and production monitoring. Built for developers working with RAG systems, a

Arize AI is an enterprise-grade observability and evaluation platform for LLM applications and AI agents. Used by DoorDash, Uber, Reddit, and 6,700+ teams, it provides tracing, automated evaluations, prompt optimization, and real-time monitoring to help AI engineers ship reliable agents faster—from

Platform for tracking and analyzing brand mentions and citations across large language models and AI search engines.

Google's platform for structuring and testing prompts with Gemini and other AI models, featuring prompt management and optimization tools.

Development framework providing tools and abstractions for building applications with large language models including prompt templates and chains.

End-to-end prompt management combining versioning, evaluation, and monitoring tools designed for teams building production AI applications.

Complete prompt management solution with experimentation, evaluation, and observability features for optimizing AI model performance at scale.

Observability tool for tracking prompts, model outputs, and performance metrics in production LLM applications with experiment tracking.

Platform for storing, versioning, and sharing prompts across teams with built-in testing and optimization features for AI projects.

Observability and testing platform for LangChain apps, providing prompt tracking, debugging tools, and performance analytics for AI workflows.

Platform for logging, tracking, and managing prompts across AI models with version control and collaboration features for development teams.

Comprehensive prompt management tool for AI teams offering versioning, testing, and monitoring capabilities to optimize AI model interactions.