PromptLayer
Trace AI requests, workflows, and costs in one timeline
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About
PromptLayer provides observability and prompt management for AI applications. It allows developers to trace requests, monitor token usage, latency, and costs, and debug failures through a single timeline view. The platform includes a visual editor for versioning and deploying prompts without code redeployment, an evaluation harness for testing prompts against datasets, and agent tracing for multi-step workflows. It integrates with existing production logs to connect traces to specific prompt versions and evaluation scores.
Key Features
- Visual prompt editor and version control
- LLM observability (cost, latency, token usage)
- Automated and human evaluation harnesses
- Agent workflow tracing and debugging
- A/B testing for prompt versions
What Makes It Different
Combines prompt management, evaluation, and observability in one platform, specifically designed for AI engineering teams to collaborate between developers and domain experts.
Pricing
Free plan available with 2.5k requests/month. Pro plan is $49/month. Team plan is $500/month. Enterprise pricing is custom.
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