Comparison

Not Diamond vs OpenRouter

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.

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
Not Diamond62
OpenRouter67
Score
vioscaleAI score
Not Diamond62 / 100medium · 60%
OpenRouter67 / 100low · 34%
Pricing
Free tier
Not Diamond–
OpenRouter✓
Model
Not Diamondcommercial
OpenRouterfreemium
Price level
Not Diamondlow
OpenRouterlow
Starting price
Not Diamond$0.05
OpenRouter–
Transparent
Not Diamond✓
OpenRouter✓
Integrations
Count
Not Diamond–
OpenRouter80
Security
Certifications
Not DiamondSOC 2, ISO 27001
OpenRouter–
Gdpr
Not Diamond–
OpenRouter✓
Iso27001
Not Diamond✓
OpenRouter–
Soc2
Not Diamond✓
OpenRouter–
Trust center
Not Diamond–
Market
Content
Faq
Not Diamond–
OpenRouter6 items

Capabilities

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

Capabilities
Openai compatible API
Not Diamond-
OpenRouter✓
Automatic failover
Not Diamond-
OpenRouter✓
Routing strategy
Not DiamondCustom
OpenRouterCost based
Caching
Not Diamond-
OpenRouterExact
Virtual key management
Not Diamond-
OpenRouter✓
Budget spend controls
Not Diamond-
OpenRouter✓
Rate limiting
Not Diamond-
OpenRouter✓
Guardrails moderation
Not Diamond-
OpenRouter-
Request cost observability
Not Diamond✓
OpenRouter✓
Streaming support
Not Diamond-
OpenRouter✓
Deployment model
Not DiamondManaged SaaS
OpenRouterManaged SaaS
Open source
Not Diamond-
OpenRouter✓
Pricing model
Not DiamondUsage based saas
OpenRouterUsage based saas

What each one is

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

Not Diamond

A model routing service for coding agents that uses machine learning to predict and recommend the most cost-effective and accurate AI model for each request. Engineering teams typically achieve 20-40% cost savings without quality degradation through continuous learning from real usage patterns.

Independently observed

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

Pricing

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

Not Diamond

from $0.05/million tokensUsage-based

$0.05 per million tokens; enterprise plans available

  • Pay-as-you-go$0.05 per million tokens routed
    • Multi-harness support
    • Multi-provider support
    • Savings and usage dashboard
    • Continuous learning from harness usage
  • EnterpriseContact sales
    • Volume-based discounts
    • Organization-wide analytics
    • Advanced security and admin controls
    • SSO with SAML
    • Privacy-preserving deployment
as of verify ↗

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 ↗

Platform & deployment

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

Platforms
Web
Not Diamond–
OpenRouter✓
CLI
Not Diamond–
OpenRouter✓
Deployment
Cloud / SaaS
Not Diamond✓
OpenRouter✓

Integrations

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

Not Diamond

Not documented yet.

OpenRouter

11 total
  • Vercel AI SDK
  • Claude Code
  • Cursor
  • OpenAI SDK
  • OpenAI
  • Anthropic
  • Google
  • Meta
  • Mistral
  • Model Context Protocol (MCP)
  • Terraform
Independently observed
Still deciding?

Not Diamond or OpenRouter: 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.