Softwr

APIs · head to head

LiteLLM vs Svix

LiteLLM logo

LiteLLM

APIs

The AI Gateway for platform teams

From
Free
Rated
-
Svix logo

Svix

APIs

Outbound webhook sending as a service, with retries, signing and a customer-facing portal

From
Free
Rated
-

The short version

  • Each has a real cost: LiteLLM enterprise pricing based on annual request capacity and deployment architecture, sized via direct sales; Svix the Professional tier at 490 US dollars a month includes the same 50,000 messages as the free tier, so the upgrade buys SLA, throughput and retention rather than volume, which is a jarring step for a growing product.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which LiteLLM and Svix actually diverge.

Attributes where LiteLLM and Svix differ
AttributeLiteLLMSvix
Pricing modelopen-sourcePer month by message count
PlatformsWebWeb, Cloud, Docker

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (APIs).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in LiteLLM

Nothing recorded that Svix does not also cover.

Only in Svix

  • Automatic retries
  • Payload signing
  • Consumer portal
  • Event types and filtering
  • Delivery logs and replay
  • Rate limiting
  • Static source IPs
  • Language SDKs

What people use each for

The jobs each tool is most often brought in to do.

LiteLLM

  • Accessing 140+ LLM providers through single APInot Svix
  • Implementing cost-based routing for advanced AI tasksnot Svix
  • Deploying new LLM models usually within a daynot Svix
  • Switching backend models with config changes onlynot Svix
  • Maintaining consistent access across 100+ endpointsnot Svix

Svix

  • A SaaS company adding webhooks to its API that does not want to build retry, signing and a customer debugging UI from scratchnot LiteLLM
  • A payments or fintech product whose customers need signature verification libraries in several languages they did not writenot LiteLLM
  • An engineering team drowning in support tickets from customers whose endpoints silently failed and who need self-service delivery logsnot LiteLLM
  • A platform with a small number of very slow customer endpoints that must not delay deliveries to everyone elsenot LiteLLM

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

LiteLLM

  • Enterprise pricing based on annual request capacity and deployment architecture, sized via direct sales
  • Not per-token based pricing for Enterprise tier

Svix

  • The Professional tier at 490 US dollars a month includes the same 50,000 messages as the free tier, so the upgrade buys SLA, throughput and retention rather than volume, which is a jarring step for a growing product.
  • Only attempted messages count toward usage, but a customer with many subscribed endpoints multiplies a single event into many billable messages, and forecasting that fan-out before launch is difficult.
  • The open source server is MIT licensed but trails the hosted product in features, so self-hosting is a fallback position rather than a genuinely equivalent option.
  • Routing outbound customer traffic through a third party puts a vendor in the delivery path for events your customers may treat as contractual, which some security reviews will not accept.
  • Payload retention is 30 days on the free tier and 90 on Professional, so anyone needing longer delivery history for audit must pay for Enterprise or log independently.

Pricing, plan by plan

LiteLLM

Free
  • Open SourceFree
    • 100+ providers
    • One OpenAI API
    • Virtual keys
  • Enterprise$null/mo
    • All Open Source features
    • SSO + SCIM
    • OIDC/JWT authentication

Svix

Free
  • FreeFree
    • 50,000 messages a month included
    • Overage at $0.0001 per message
    • 99.9% uptime SLA
  • Professional$490/month
    • 50,000 messages included, same as free
    • 99.99% uptime SLA
    • 800 messages per second
  • Enterprise$undefined/year
    • Custom volume and rate limits
    • 99.999% uptime SLA
    • Custom retention

Which should you pick?

Choose LiteLLM if

  • You want to start without paying.

Choose Svix if

  • You need automatic retries.
  • You want to start without paying.
  • You work on Web, Cloud, Docker.
  • You also want payload signing.

Questions people ask

Is LiteLLM or Svix better?
Neither clearly leads. LiteLLM starts at Free and Svix at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, LiteLLM or Svix?
LiteLLM starts at Free and Svix at Free.
Does LiteLLM or Svix run on more platforms?
LiteLLM runs on Web. Svix runs on Web, Cloud, Docker.
Can I use LiteLLM for free?
Both have a free tier, so you can try either at no cost before committing.
What is LiteLLM best used for?
LiteLLM is most often used for accessing 140+ llm providers through single api, implementing cost-based routing for advanced ai tasks, deploying new llm models usually within a day, switching backend models with config changes only. Of those, accessing 140+ llm providers through single api and implementing cost-based routing for advanced ai tasks are not what Svix is typically brought in for.
What can LiteLLM do that Svix cannot?
Svix covers Automatic retries, Payload signing, Consumer portal, Event types and filtering.

Answered from the vendors’ own pages

LiteLLM: Is LiteLLM free to use?

Yes, LiteLLM's open-source version is free forever and requires no credit card. Self-host in minutes with support for 100+ LLM providers.

Source
Svix: How much does Svix cost?

Free up to 50,000 messages a month; Professional starts at 490 US dollars a month with the same included volume but better SLA and throughput.

LiteLLM: What does LiteLLM's Enterprise plan cost?

Enterprise pricing is custom and annual, sized based on your annual gateway request capacity, deployment architecture, and support needs. Not charged per token.

Source
Svix: Can I self-host it?

Yes, there is an MIT licensed server, but it lags the hosted service in features and has no SLA.

LiteLLM: Is there a free trial for Enterprise?

Yes, a 30-day Enterprise trial key is available via email with no credit card required.

Source
Svix: What counts as a message?

Attempted or transformed deliveries. Retries and messages filtered out because no endpoint subscribed are not charged.

Svix: Does it handle inbound webhooks?

Its focus is outbound sending on behalf of API providers, not receiving webhooks from third parties.

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