vioscale
Comparison

OpenRouter vs PromptLayer

On the evidence we track, OpenRouter leads this comparison with a composite score of 80/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

OpenRouter full profile →PromptLayer full profile →
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★OpenRouter80
PromptLayer70
Score
Vioscale score
OpenRouter80 / 100low · 36%
PromptLayer70 / 100medium · 54%
Pricing
Free tier
OpenRouter✓
PromptLayer✓
Model
OpenRouterfreemium
PromptLayerfreemium
Price level
OpenRouterlow
PromptLayermid
Starting price
OpenRouter–
PromptLayer$49
Transparent
OpenRouter✓
PromptLayer✓
Integrations
Count
OpenRouter80
PromptLayer7
Security
Gdpr
OpenRouter✓
PromptLayer✓
Hipaa
OpenRouter–
PromptLayer✓
Soc2
OpenRouter–
PromptLayer✓
Market
Availability

Capabilities

Feature-by-feature on the axes that matter for llm gateways. “-” means undocumented, not absent.

Capabilities
Openai compatible API
OpenRouter✓
PromptLayer✓
Automatic failover
OpenRouter✓
PromptLayer-
Routing strategy
OpenRouterCost based
PromptLayer-
Caching
OpenRouterExact
PromptLayerExact
Virtual key management
OpenRouter✓
PromptLayer-
Budget spend controls
OpenRouter✓
PromptLayer-
Rate limiting
OpenRouter✓
PromptLayer✓
Guardrails moderation
OpenRouter-
PromptLayer-
Request cost observability
OpenRouter✓
PromptLayer✓
Streaming support
OpenRouter✓
PromptLayer✓
Deployment model
OpenRouterManaged SaaS
PromptLayerManaged SaaS
Open source
OpenRouter✓
PromptLayer✓
Pricing model
OpenRouterUsage based saas
PromptLayerusage/seat-based-saas

What each one is

The product in its own terms, so the numbers below have context.

OpenRouter

Leader

OpenRouter aggregates 500+ language models from 80+ providers through a single, OpenAI-compatible API interface. It offers automatic fallback routing, cost control, usage analytics, and data policy management for teams deploying AI applications at scale.

Independently observed

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.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

OpenRouter

Leader
HybridFree tier

Free tier available. Pay-as-you-go at 5.5% platform fee. Enterprise from $25k/month.

  • FreeFree
    • 25+ free models
    • 4 free providers
    • Chat and API access
    • Community support
  • Pay-as-you-go5.5% platform fee on model usage, fee discounts available
    • 500+ models from 80+ providers
    • Automatic fallback routing
    • Activity logs and export
    • Auto-routing and preferred vendor selection
    • Budgets and spend controls
    • +4 more
  • EnterpriseContact sales
    • 500+ models, 80+ providers
    • Custom data policies and model/provider routing policies
    • Managed policy enforcement
    • SSO/SAML authentication
    • Contractual SLAs
    • +5 more
as of verify ↗

PromptLayer

from $49/moHybridFree tier

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.

  • FreeFree
    • 5 Users
    • 2.5k/month Requests
    • 1 Workspace
    • 250/month Eval Cell Executions
    • 10MB max per Dataset
    • +1 more
  • Pro$49/month plus $0.003/transaction
    • Unlimited Playgrounds
    • Unlimited Workspaces
    • 150MB max per Dataset
    • Webhooks Included
    • Dedicated Support
  • Team$500/month plus $0.002/transaction
    • 25 Users
    • 100k+/month Requests
    • 7.5k+/month Eval Cell Executions
    • 1GB max per Dataset
    • Webhooks Included
    • +2 more
  • EnterpriseContact sales
    • Custom limits on everything
    • Role Based Access Controls
    • Deployment Approvals
    • HIPAA with BAA
    • Flexible Hosting Options
    • +2 more
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
OpenRouter✓
PromptLayer✓
CLI
OpenRouter✓
PromptLayer✓
Deployment
Cloud / SaaS
OpenRouter✓
PromptLayer✓
Self-hosted
OpenRouter✗
PromptLayer✓
On-premise
OpenRouter✗
PromptLayer✓
Hybrid
OpenRouter✗
PromptLayer✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

In common (2)
  • OpenAI
  • Anthropic

OpenRouter

Leader
11 total - 9 not shared
  • Vercel AI SDK
  • Claude Code
  • Cursor
  • OpenAI SDK
  • Google
  • Meta
  • Mistral
  • Model Context Protocol (MCP)
  • Terraform
Independently observed

PromptLayer

8 total - 6 not shared
  • Pydantic AI
  • Google GenAI
  • AWS Bedrock
  • OpenTelemetry
  • Azure OpenAI
  • Vertex AI
Independently observed

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.