vioscaleAI
Comparison

LiteLLM vs PromptLayer

On the evidence we track, PromptLayer leads this comparison with a composite score of 63/100. 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 formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
LiteLLM58
★PromptLayer63
Score
vioscaleAI score
LiteLLM58 / 100low · 35%
PromptLayer63 / 100medium · 72%
Pricing
Free tier
LiteLLM✓
PromptLayer✓
Model
LiteLLMfreemium
PromptLayerfreemium
Price level
LiteLLMlow
PromptLayermid
Starting price
LiteLLM–
PromptLayer$49
Transparent
LiteLLM✗
PromptLayer✓
Integrations
Count
LiteLLM140
PromptLayer5
Security
Gdpr
LiteLLM–
PromptLayer✓
Hipaa
LiteLLM–
PromptLayer✓
Soc2
LiteLLM–
PromptLayer✓
Market
Availability
Content
Faq
LiteLLM5 items
PromptLayer7 items

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

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

PromptLayer

Leader

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.

LiteLLM

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 ↗

PromptLayer

Leader
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✗
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

36 total - 32 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
  • +8 more
Independently observed

PromptLayer

Leader
9 total - 5 not shared
  • Pydantic AI
  • Google GenAI
  • OpenTelemetry
  • Azure OpenAI
  • Gemini API
Independently observed
Still deciding?

LiteLLM 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.