Comparison

LiteLLM vs Vercel AI Gateway

On the evidence we track, LiteLLM leads this comparison with a composite score of 58/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
★LiteLLM58
Vercel AI Gateway33
Score
vioscaleAI score
LiteLLM58 / 100low · 35%
Vercel AI Gateway33 / 100medium · 60%
Pricing
Free tier
LiteLLM✓
Vercel AI Gateway–
Model
LiteLLMfreemium
Vercel AI Gatewaycommercial
Price level
LiteLLMlow
Vercel AI Gatewayunknown
Transparent
LiteLLM✗
Vercel AI Gateway✓
Integrations
Count
LiteLLM140
Vercel AI Gateway2
Security
Hipaa
LiteLLM–
Vercel AI Gateway✓
Trust center
Market
Content
Faq
LiteLLM5 items
Vercel AI Gateway6 items

Capabilities

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

Capabilities
Openai compatible API
LiteLLM✓
Vercel AI Gateway✓
Automatic failover
LiteLLM✓
Vercel AI Gateway✓
Routing strategy
LiteLLMCost based
Vercel AI GatewayCustom
Caching
LiteLLM-
Vercel AI Gateway-
Virtual key management
LiteLLM✓
Vercel AI Gateway✓
Budget spend controls
LiteLLM✓
Vercel AI Gateway✓
Rate limiting
LiteLLM✓
Vercel AI Gateway-
Guardrails moderation
LiteLLMBuilt in
Vercel AI Gateway-
Request cost observability
LiteLLM✓
Vercel AI Gateway✓
Streaming support
LiteLLM-
Vercel AI Gateway✓
Deployment model
LiteLLMSelf hosted
Vercel AI GatewayManaged SaaS
Open source
LiteLLM✓
Vercel AI Gateway✗
Pricing model
LiteLLMOpen source self host
Vercel AI GatewayUsage based saas

What each one is

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

LiteLLM

Leader

An open-source AI gateway that abstracts access to over 140 language model providers behind a single OpenAI-compatible API, enabling teams to implement spend tracking, request routing, and governance controls without changing application code.

Independently observed

Vercel AI Gateway

AI Gateway provides a single integration point for routing requests to multiple AI model providers (OpenAI, Anthropic, and others) through an OpenAI-compatible API. It includes budget controls, unified billing, usage tracking, and automatic failover to ensure reliable access to language models.

Independently observed

Pricing

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

LiteLLM

Leader
HybridFree tier30-day trial

Free open-source self-hosted tier; Enterprise priced to scale

  • Open SourceFree
    • 100+ LLM providers, one OpenAI API
    • Virtual keys, users & teams
    • Spend tracking
    • Budgets + rate limits
    • LLM fallbacks
    • +3 more
  • EnterpriseContact sales
    • Everything in Open Source, plus:
    • SSO + SCIM
    • OIDC / JWT auth
    • Audit logs
    • Secret managers + key rotation
    • +5 more
as of verify ↗

Vercel AI Gateway

Usage-based

Usage-based pricing with no platform markup; invoicing available with no payment processing fees

as of verify ↗

Platform & deployment

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

Platforms
Web
LiteLLM✓
Vercel AI Gateway✓
CLI
LiteLLM✓
Vercel AI Gateway✓
Deployment
Cloud / SaaS
LiteLLM✓
Vercel AI Gateway✓
Self-hosted
LiteLLM✓
Vercel AI Gateway✗
On-premise
LiteLLM✓
Vercel AI Gateway✗
Air-gapped
LiteLLM✓
Vercel AI Gateway✗

Integrations

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

In common (3)
  • OpenAI
  • Anthropic
  • Google Gemini

LiteLLM

Leader
36 total - 33 not shared
  • Azure
  • AWS Bedrock
  • Cloudflare
  • Google VertexAI
  • Meta Llama
  • Mistral AI
  • NLP Cloud
  • OVHCloud
  • vLLM
  • Nvidia NIM
  • Slack
  • Discord
  • Microsoft Teams
  • PagerDuty
  • Prometheus
  • AWS Secrets Manager
  • Google Cloud Secret Manager
  • MCP servers
  • Gemini
  • Bedrock
  • VertexAI
  • Langfuse
  • Langsmith
  • Datadog
  • +9 more
Independently observed

Vercel AI Gateway

7 total - 4 not shared
  • SpaceXAI
  • Cohere
  • AssistLoop
  • Vercel AI SDK
Independently observed
Still deciding?

LiteLLM or Vercel AI Gateway: 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.