vioscale
Comparison

LiteLLM vs PromptLayer

On the evidence we track, LiteLLM leads this comparison with a composite score of 81/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

LiteLLM full profile →PromptLayer full profile →
Machine formatsJSONMarkdownGraphQLor send Accept: application/json
★LiteLLM81
PromptLayer70
Score
Vioscale score
LiteLLM81 / 100low · 36%updating
PromptLayer70 / 100medium · 54%updating
Pricing
Free tier
LiteLLM✓
PromptLayer✓
Model
LiteLLMfreemium
PromptLayerfreemium
Price level
LiteLLMlow
PromptLayermid
Starting price
LiteLLM–
PromptLayer$49
Transparent
LiteLLM✓
PromptLayer✓
Integrations
Count
LiteLLM140
PromptLayer7
Security
Gdpr
LiteLLM–
PromptLayer✓
Hipaa
LiteLLM–
PromptLayer✓
Soc2
LiteLLM–
PromptLayer✓
Market
Availability

Capabilities

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

Capabilities
Openai compatible API
LiteLLM✓
PromptLayer✓
Automatic failover
LiteLLM✓
PromptLayer-
Routing strategy
LiteLLMCost based
PromptLayer-
Caching
LiteLLM-
PromptLayerExact
Virtual key management
LiteLLM✓
PromptLayer-
Budget spend controls
LiteLLM✓
PromptLayer-
Rate limiting
LiteLLM✓
PromptLayer✓
Guardrails moderation
LiteLLMBuilt in
PromptLayer-
Request cost observability
LiteLLM✓
PromptLayer✓
Streaming support
LiteLLM-
PromptLayer✓
Deployment model
LiteLLMSelf hosted
PromptLayerManaged SaaS
Open source
LiteLLM✓
PromptLayer✓
Pricing model
LiteLLMOpen source self host
PromptLayerusage/seat-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 provides a centralized control point for managing multiple large language models from different providers. It offers virtual key management, spend tracking, budget controls, and intelligent request routing without charging per token.

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.

LiteLLM

Leader
HybridFree tier30-day trial

Free open-source tier. Enterprise pricing based on annual request volume, not per-token.

  • Open SourceFree
    • 100+ LLM providers
    • Virtual keys, users & teams
    • Spend tracking
    • Prometheus metrics
    • Logging and alerting
    • +3 more
  • EnterpriseContact sales
    • Everything in Open Source, plus:
    • SSO + SCIM provisioning
    • OIDC / JWT authentication
    • Audit logs on every request
    • Secret manager integration
    • +7 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
LiteLLM✓
PromptLayer✓
CLI
LiteLLM✓
PromptLayer✓
Deployment
Cloud / SaaS
LiteLLM✓
PromptLayer✓
Self-hosted
LiteLLM✓
PromptLayer✓
On-premise
LiteLLM✓
PromptLayer✓
Hybrid
LiteLLM✓
PromptLayer✓
Air-gapped
LiteLLM✓
PromptLayer✗

Integrations

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

In common (4)
  • OpenAI
  • Anthropic
  • AWS Bedrock
  • VertexAI

LiteLLM

Leader
32 total - 28 not shared
  • Azure
  • 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
  • Langfuse
  • Langsmith
  • Datadog
  • Email
  • Webhook
  • +4 more
Independently observed

PromptLayer

8 total - 4 not shared
  • Pydantic AI
  • Google GenAI
  • OpenTelemetry
  • Azure OpenAI
Independently observed

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