vioscaleAI
Comparison

OpenRouter vs PromptLayer

No leader: the top candidate OpenRouter has only 0.34 confidence (low), below the 0.35 needed to declare a winner. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

OpenRouter full profile →PromptLayer full profile →
Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
OpenRouter67
PromptLayer63
Score
vioscaleAI score
OpenRouter67 / 100low · 34%
PromptLayer63 / 100medium · 72%
Pricing
Free tier
OpenRouter✓
PromptLayer✓
Model
OpenRouterfreemium
PromptLayerfreemium
Price level
OpenRouterlow
PromptLayermid
Starting price
OpenRouter–
PromptLayer$49
Transparent
OpenRouter✓
PromptLayer✓
Integrations
Count
OpenRouter80
PromptLayer5
Security
Gdpr
OpenRouter✓
PromptLayer✓
Hipaa
OpenRouter–
PromptLayer✓
Soc2
OpenRouter–
PromptLayer✓
Trust center
OpenRouterhttps://openrouter.ai/privacy
PromptLayer–
Market
Availability
Content
Faq
OpenRouter6 items
PromptLayer7 items

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

OpenRouter provides a unified, OpenAI-compatible API that consolidates access to over 500 language models from 80+ providers. It features automatic failover for reliability, cost-optimized routing, transparent provider pricing with modest platform fees, and support for multiple deployment and authentication methods.

Independently observed

PromptLayer

A platform that maintains logs of prompts and API requests, enabling debugging and replay of previous completions. Provides version tracking, testing, and monitoring with integrated tracing and evaluation features.

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

HybridFree tier

Free tier with 50 requests/day, or pay-as-you-go at 5.5% markup

  • FreeFree
    • Chat and API access
    • 25+ free models
    • 4 free providers
    • 50 requests/day rate limit
    • Community support
  • Standard5.5% platform fee on provider pricing
    • Pay-as-you-go usage billing
    • 500+ models
    • 80+ providers
    • Email support
    • Budgets and spend controls
    • +2 more
  • BusinessContact sales
    • Fee discounts available
    • 500+ models
    • 80+ providers
    • Custom rate limits
    • Invoicing options
  • EnterpriseContact sales
    • Custom pricing
    • 500+ models
    • 80+ providers
    • Dedicated support team
    • Contractual SLAs
    • +2 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✓

Integrations

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

In common (2)
  • OpenAI
  • Anthropic

OpenRouter

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

PromptLayer

9 total - 7 not shared
  • Pydantic AI
  • Google GenAI
  • AWS Bedrock
  • OpenTelemetry
  • Azure OpenAI
  • Vertex AI
  • Gemini API
Independently observed
Still deciding?

OpenRouter or PromptLayer: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

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