PromptLayer

PromptLayer offers a no-code prompt editor that enables non-technical domain experts to update and test prompts directly from the dashboard. It supports versioning with comments, notes, diffing, and rollback. Prompts can be deployed to production and development environments without code changes. A/B testing allows gradual release of new prompt versions. The platform includes historical backtesting, regression tests triggered on prompt updates, model comparison, and one-off bulk jobs for evaluation. Observability features include cost and latency stats, latency trends, and the ability to jump to bug reports from execution logs. For agents, it provides versioning of workflows, inspection of tool calls, and evaluation of multi-step runs.

PromptLayer is used by teams in various domains. For example, Speak uses it for personalized language learning at scale, enabling non-technical teams to iterate on prompts and evaluate lesson quality. Gorgias uses it for e-commerce customer support, refining prompts, replaying edge cases, and running regression evals. Other use cases include automated AI sales outbound, legal AI evaluation with lawyers, newsroom-ready AI agents, debugging LLM agents in production, and handling viral spikes in traffic. The platform is designed to support non-technical prompt engineering, allowing product, marketing, and content teams to edit prompts directly without engineering bottlenecks.

The page does not provide specific pricing details. It offers a free sign-up option and a request demo option. For detailed pricing, users are likely directed to the pricing page or contact sales.