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LLM Gateway

Unified API for routing requests across 40+ language model providers with automatic failover

Freemium
3.9 (8 reviews)

About LLM Gateway

LLM Gateway is a routing layer that sits between your application and the dozens of language model providers you might want to use. Instead of integrating with OpenAI, Anthropic, Google, and others separately, maintaining different SDKs and juggling credentials across dashboards, you point your existing OpenAI SDK at LLM Gateway and gain access to over 200 models from more than 40 providers through a single endpoint. The integration is minimal. You change your base URL, keep your existing code, and everything else works the way it did before. The difference is that now you can switch models or providers without touching your application logic. This matters when you want to test a new model against your production workload, or when you need to route around an outage without scrambling to rewrite code.

The problem it solves is both practical and financial. Managing multiple API keys, dashboards, and billing accounts across providers is overhead that grows with every new model you want to test. When OpenAI releases a new version, you need to update your integration. When Anthropic changes their API, you need to handle that separately. When you want to compare Claude against GPT-4 against Gemini on your actual workload, you need three different setups. LLM Gateway collapses all of that into one integration point. More critically, when one provider goes down, your application typically goes down with it. LLM Gateway routes requests to healthy providers in real time and fails over automatically when something breaks. The math they cite is that individual providers average around 94% uptime, which sounds fine until you calculate that it works out to roughly 22 days of downtime per year. By combining providers through a routing layer, aggregate uptime climbs to 99.9999%, which is less than a minute of downtime annually. For applications where uptime matters, this is the difference between a minor incident and a major outage.

Beyond reliability, the dashboard gives you cost and performance visibility that would otherwise require stitching together data from every provider. You can compare latency, token usage, and spending across models over rolling seven or thirty day windows. The analytics surface which models are costing you the most, which are responding fastest, and where your spend is concentrated. For teams running production workloads, this kind of visibility usually requires building internal tooling. Here it comes built in. There are guardrails that catch prompt injection attempts and flag personally identifiable information before requests leave your system. These guardrails run on every request, which means you get baseline security without writing custom validation logic. For teams that need compliance records, audit logs track every request with the detail that enterprise security reviews expect.

Deployment is flexible in a way that matters for different kinds of organizations. You can use the managed cloud version, which handles infrastructure and scaling for you. Or you can self-host the entire thing on your own infrastructure under an AGPLv3 license at no cost. Self-hosting means your requests never touch a third party, which matters if you are working with sensitive data, operating in a regulated environment, or simply prefer to keep everything in house. The open source option is a genuine full product, not a limited community edition missing the features that make the paid version useful. You get the same routing, analytics, and guardrails whether you pay or self-host. This is a meaningful distinction from competitors that gate features behind paid tiers or offer stripped-down community editions.

Pricing on the managed side works a few ways. You can buy credits with a 5% fee on top of the underlying provider rates, which is the simplest path if you do not want to manage your own keys. Or you can bring your own API keys and route through LLM Gateway for free, paying only what the providers charge directly. The bring-your-own-keys approach means there is no markup on model costs, just free routing and analytics. Enterprise plans add custom SLAs, dedicated infrastructure, and volume discounts for organizations running at scale. The company is SOC 2 Type II certified, which checks the compliance box for larger organizations that cannot adopt tools without that audit trail.

LLM Gateway fits developers and teams building AI applications who do not want to be locked into a single provider and who value the ability to switch models or providers without rewriting integration code. It also appeals to anyone who has been burned by provider outages and wants automatic failover without building it themselves. The product adds new models within 48 hours of their public launch, so you are not waiting weeks to experiment with the latest release from any vendor. If a new model drops and you want to test it against your production workload, you can do that the next day without writing new integration code. The combination of free BYOK routing, full-featured self-hosting, and rapid model support makes it a practical choice for teams that want flexibility without the overhead of managing multiple provider integrations directly.

Key Features

  • Unified API for 200+ models across 40+ providers
  • Automatic failover to healthy providers
  • Real time cost and latency analytics
  • Self-hosted option under AGPLv3 license
  • Prompt injection and PII guardrails
  • Enterprise audit logging and SOC 2 certification

Pros & Cons

What we like

  • Single integration replaces dozens of provider setups
  • Full self-hosting option with no feature restrictions
  • Bring your own keys means no markup on provider rates
  • New models added within 48 hours of launch

Room for improvement

  • 5% fee on credits if not using your own API keys
  • Self-hosting requires infrastructure management
  • Reliance on a routing layer adds a dependency
  • Dashboard learning curve for teams new to multi-provider setups

Frequently Asked Questions

What is LLM Gateway?
LLM Gateway is a unified API layer that routes requests to over 200 language models from 40+ providers. You integrate once and gain access to OpenAI, Anthropic, Google, and others through a single endpoint with automatic failover when providers go down.
Is LLM Gateway free?
It depends on how you use it. If you bring your own provider API keys, routing is free. If you buy credits through the platform, there is a 5% fee on top of provider rates. The self-hosted version is free forever under an open source license.
Can I self-host LLM Gateway?
Yes. The full product is available under AGPLv3 for self-hosting on your own infrastructure at no cost. This keeps requests entirely within your environment and avoids any reliance on the managed cloud service.
Who is LLM Gateway for?
Developers and teams building AI applications who want provider flexibility, automatic failover for reliability, and centralized analytics without managing separate integrations for every model vendor.

Best For

Routing AI requests across multiple providers through one endpointBuilding applications that need high uptime through automatic failoverComparing model performance and cost across vendorsSelf-hosting an LLM gateway for data privacy compliance

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Reviews (8)

T
Theo Leroy Verified

Exactly what I needed

Found LLM Gateway on a Show HN thread and I am glad I clicked. The automatic failover to healthy providers is more useful than I expected. Setup was painless and I was productive the same day. Found it works best for routing ai requests across multiple providers through one endpoint. Worth it for what I get out of it.

5/15/2026 15 found this helpful
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Amara Lund Verified

Finally something that fits

Tried LLM Gateway on a side project first, then rolled it out everywhere. Where it really wins is enterprise audit logging and soc 2 certification. Glad I made the switch.

4/29/2026 15 found this helpful
J
Jordan Brown Verified

Exactly what I needed

Hadn't planned on switching, but LLM Gateway was hard to ignore. Their take on unified api for 200+ models across 40+ providers is genuinely good. It has shaved real time off my week.

7/13/2026 12 found this helpful
H
Henrik Schneider Verified

Powerful once it clicks

Tried LLM Gateway on a side project first, then rolled it out everywhere. The defaults are sensible, so I was not fighting settings on day one. Mostly using it for comparing model performance and cost across vendors. It would be a five if not for self-hosting requires infrastructure management. Glad I made the switch.

5/17/2026 10 found this helpful
Q
Quinn Ferrari

Two months in, no regrets

Hadn't planned on switching, but LLM Gateway was hard to ignore. Their take on new models added within 48 hours of launch is genuinely good. Support actually answered when I had a question, which surprised me.

4/14/2026 10 found this helpful
R
Riley Petrov

Decent with some rough edges

Hadn't planned on switching, but LLM Gateway was hard to ignore. Got real value out of bring your own keys means no markup on provider rates. Mostly using it for routing ai requests across multiple providers through one endpoint. One thing that bugs me is self-hosting requires infrastructure management. Worth it for what I get out of it.

7/7/2026 6 found this helpful
T
Tunde Khouri Verified

Recommended without reservation

Found LLM Gateway on a Show HN thread and I am glad I clicked. Support actually answered when I had a question, which surprised me. The defaults are sensible, so I was not fighting settings on day one. Would sign up again without thinking twice.

7/6/2026 2 found this helpful
K
Khalid Rossi Verified

Powerful once it clicks

Hadn't planned on switching, but LLM Gateway was hard to ignore. The prompt injection and pii guardrails is more useful than I expected. It does what it says, which is rarer than it should be. One thing that bugs me is self-hosting requires infrastructure management. Hard to imagine going back to my old setup.

4/26/2026