PromptLayer
A collaboration layer enabling AI engineering teams to manage and improve prompts without modifying code
- Also known as
- promptlayer
Available worldwide · Popular in: US, EU
What is PromptLayer?
A platform combining prompt versioning, evaluation tools, and observability for LLM applications. It enables domain experts to test and refine prompts, track API usage and costs, and monitor application performance—all without changing application code.
PromptLayer pricing
Plans, per-tier features and add-ons, dated and linked to live pricing. Pricing changes often; always verify at source before you rely on it.
Free tier available. Pro starts at $49/month, Team at $500/month, both with usage-based billing ($0.002–$0.003 per transaction). Enterprise custom pricing.
Free
Freefor hackers
- users
- 5
- requests
- 2.5k/month
- dataset_size
- 10MB
- eval_executions
- 250/month
- 5 Users
- 2.5k/month Requests
- 1 Workspace
- 250/month Eval Cell Executions
- 10MB max per Dataset
- Basic Support
Pro
for small teams
- workspaces
- Unlimited
- playgrounds
- Unlimited
- dataset_size
- 150MB
- Unlimited Playgrounds
- Unlimited Workspaces
- 150MB max per Dataset
- Webhooks Included
- Dedicated Support
Team
for growing teams
- users
- 25
- requests
- 100k+/month
- dataset_size
- 1GB
- eval_executions
- 7.5k+/month
- 25 Users
- 100k+/month Requests
- 7.5k+/month Eval Cell Executions
- 1GB max per Dataset
- Webhooks Included
- Role Based Access Controls
- Dedicated Support
Enterprise
Contact sales- Custom limits on everything
- Role Based Access Controls
- Deployment Approvals
- HIPAA with BAA
- Flexible Hosting Options
- Dedicated Support
- Data Retention Control
What PromptLayer does
The capabilities that matter for prompt management, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Versioning model
- Git native
- Diff and rollback
- ✓
- Deploy without redeploy
- ✓
- Non engineer editing
- ✓
- Multi model playground
- ✓
- Ab testing
- ✓
- LLM judge or human eval
- ✓
- Multi step flows
- ✓
- Approval workflow
- ✓
- Tracing included
- ✓
- Self hostable
- ✓
- Deployment model
- Managed SaaS
- Pricing model
- Usage/seat based saas
Platform & deployment
Independently observed- CLI
- Web
- Cloud / SaaS
- Hybrid
- On-premise
- Self-hosted
Integrations (8)
Independently observed- Pydantic AI
- OpenAI
- Anthropic
- Google GenAI
- AWS Bedrock
- OpenTelemetry
- Azure OpenAI
- Vertex AI
PromptLayer alternatives
Other prompt management we track, ranked by the same independent score.
- PromptHubA collaborative platform for managing, testing, and deploying AI prompts across teamslow · 26%
- Orq.aiA unified AI gateway routing requests across 500+ models from multiple providers with built-in observability and governancemedium · 55%
- LatitudeAutomatically detect and repair AI agent failures in productionmedium · 54%
- VellumA personalized AI assistant with persistent memory that integrates across your digital life and devices.low · 37%
- AgentaPlatform for building, testing, and deploying AI agents with team collaboration and iterative refinementlow · 43%
- PromptmetheusIDE for systematically engineering and testing LLM prompts with team collaborationmedium · 66%
Compare PromptLayer
Side by side against other prompt management, attribute by attribute, with a source on every value.
The Vioscale score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for PromptLayer, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Pricing transparency | 100 | 0.08 | 8.4 | ✓ |
| Capabilities | 100 | 0.05 | 4.9 | ✓ |
| Security posture | 55 | 0.07 | 4.0 | ✓ |
| Price level | 50 | 0.05 | 2.6 | ✓ |
| Integrations | 26 | 0.04 | 1.1 | ✓ |
| Reliability | 0 | 0.07 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | Caching: exact · Ab testing: Yes · Open source: Yes · Pricing model: usage/seat-based-saas · Rate limiting: Yes · Self hostable: Yes | mediumsource · 2026-08-21 · 60% |
Integrations
| Attribute | Value | Evidence |
|---|---|---|
| Count | 7 | mediumsource · 2026-08-21 · 60% |
Market
| Attribute | Value | Evidence |
|---|---|---|
| Availability | HqCountry: US · PrimaryMarkets: … · AvailabilityScope: global · AvailableCountries: … · NotAvailableCountries: … | highsource · 2026-08-21 · 75% |