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AI Observability
LLM observability and evaluation platform for AI teams with prompt testing and production monitoring.

AI Observability
LLM observability and evaluation platform for AI teams with prompt testing and production monitoring.

AI Observability
Open source observability and evaluation platform for LLM applications with tracing.

Prompt Engineering Tools
PromptLayer is a platform for prompt management, AI observability, evaluation workflows, and release control across LLM apps and agent systems.
Price$50+ / seat / month

AI Observability
AI evaluation and observability platform for testing, monitoring, and fine-tuning LLM applications in production.

AI Observability
LLM observability and evaluation platform for monitoring, debugging, and improving AI application performance.

AI Observability
Langfuse is an open-source platform for tracing, prompt management, evaluations, and observability across LLM applications and agent systems.
Price$29+ / month
Price position: below this category's displayed range.LLM Ops
LLM app platform with prompt engineering, evaluation, and observability for teams

AI Observability
LangSmith is LangChain's platform for debugging, testing, evaluating, and monitoring LLM applications and agent workflows.
Price$39+ / seat / month
Starting price: below the category median.
AI Observability
Enterprise AI testing platform focused on stability and reliability testing for generative AI applications.

AI Observability
LangWatch helps teams monitor prompts, traces, and quality signals across production LLM applications and agent workflows.
Price$66.17+ / month
Starting price: below the category median.