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PromptLayer
PromptLayer says it is located in New York City.
What it is
PromptLayer combines a prompt registry and visual prompt CMS with evaluations, observability, and agent tracing for teams building AI products. Teams can edit, version, test, and deploy prompts without waiting for an application redeploy, so domain experts and non-technical stakeholders can work alongside engineers. Evaluations can run when a prompt version changes, through the API, or on demand in the UI, with historical backtests and side-by-side model comparisons. Tracking includes requests, traces, cost, latency, token use, scores, and custom metadata, with OpenTelemetry span support. Its OpenAI integration includes versioned prompts, release labels, observability, evaluations, and model comparisons. Free, Pro, and Team are cloud-hosted in the US; Enterprise offers self-hosting on GCP, AWS, or Azure, EU cloud hosting, or cloud-hosted single tenancy. Free costs nothing; Pro costs $49 a month, and Team costs $500 a month. Enterprise pricing is custom. Free includes 10 prompts and 10 playground runs per day; webhooks are available on Team and Enterprise. PromptLayer states that it maintains SOC 2 Type 2, HIPAA, and GDPR compliance.
For and against
For
- Supports prompt versioning and deployment without redeploying an app.
- Evaluations include backtests and model comparisons.
- Tracks cost, latency, token use, and traces.
- Includes OpenTelemetry span support.
- Enterprise offers flexible hosting options.
Against
- Free includes 10 prompts.
- Free allows 10 playground runs per day.
- Webhooks require Team or Enterprise.
- Enterprise pricing is custom.
The verdict
PromptLayer combines prompt workflows with evaluation and observability tools for AI product teams. The Free limits and plan-specific hosting and webhook availability are worth checking against team needs.
Who it suits
PromptLayer suits engineers and domain experts who need to manage prompts, evaluate changes, and observe AI product activity together. Its Enterprise hosting options may suit organizations with specific hosting needs.
Plans and prices
Free
5 users · 2.5k requests/month · 1 workspace · 250 eval cell executions/month
Read 30 Sep 2026 · promptlayer.com
Pro
5 users · 2.5k+/month requests · unlimited workspaces and playgrounds · 150MB max per dataset
Read 30 Sep 2026 · promptlayer.com
Team
25 users · 100k+/month requests · 7.5k+/month eval cell executions · unlimited workspaces and playgrounds
Read 30 Sep 2026 · promptlayer.com
Enterprise
Custom limits · RBAC · deployment approvals · HIPAA with BAA
Read 30 Sep 2026 · promptlayer.com
On the record
- Collaboration
- The visual workflow is designed to let domain experts and non-technical stakeholders edit prompts alongside engineers.promptlayer.com · read 30 Sep 2026
- Evaluation
- Evaluations can be triggered on new prompt versions, through the API, or ad hoc in the UI, and include historical backtests and side-by-side model comparisons.promptlayer.com · read 30 Sep 2026
- Hosting
- Free, Pro, and Team are cloud-hosted in the US; Enterprise offers self-hosting on GCP, AWS, or Azure, EU cloud hosting, or cloud-hosted single tenancy.promptlayer.com · read 30 Sep 2026
- Integrations
- The LangChain integration exports traces through OpenTelemetry and supports cost and latency analytics, searchable metadata, and turning traces into evaluation datasets.promptlayer.com · read 30 Sep 2026
- Intended users
- PromptLayer describes its platform as serving engineers and domain experts who build and improve AI products together.promptlayer.com · read 30 Sep 2026
- Notable limits
- Free includes 10 prompts and 10 playground runs per day, while webhooks are available on Team and Enterprise plans.promptlayer.com · read 30 Sep 2026
- Observability
- PromptLayer tracks requests, traces, cost, latency, token usage, scores, and custom metadata, with OpenTelemetry span support.promptlayer.com · read 30 Sep 2026
- Product
- PromptLayer combines a prompt registry and visual prompt CMS with LLM evaluations, observability, and agent tracing.promptlayer.com · read 30 Sep 2026
- Prompt management
- Teams can visually edit, version, test, and deploy prompts without waiting for an application redeploy.promptlayer.com · read 30 Sep 2026
- Security and compliance
- PromptLayer states that it maintains SOC 2 Type 2, HIPAA, and GDPR compliance; its pricing FAQ also lists CCPA certification.promptlayer.com · read 30 Sep 2026
- Support
- The pricing comparison lists basic support for Free, Pro, and Team, and dedicated support for Enterprise.promptlayer.com · read 30 Sep 2026
