Top 7 Enterprise LLM Gateways in 2026: Which Ones Include the Inference and Pass a Security Review
Concentrate AI tops the list for unified inference, security compliance and volume pricing.
Concentrate.ai
On this page
The best enterprise LLM gateway in 2026 is the one that supplies the inference, passes your security review and gets cheaper as you grow. On those tests, Concentrate AI ranks first: one API for 200+ models, one contract that covers the gateway and the model calls, a BAA for PHI, redaction before prompts reach a provider, volume-based token discounts and no fees on top of tokens.
Most "best enterprise LLM gateway" rankings are written by a gateway vendor and score routing speed and dashboards. Enterprise buyers get stuck somewhere else: procurement, security review and the bill. This ranking scores what those teams actually check.
What should an enterprise LLM gateway include?
An enterprise LLM gateway should give you model access, security controls and predictable cost under one contract. We scored each gateway on eight questions:
Inference: does the gateway supply the model calls, or do you bring and manage a key and contract for every provider?
Security review: SOC 2 Type II, SSO, role-based access and audit trails.
Data controls: zero data retention and redaction of sensitive data before a prompt leaves the gateway.
Regulated data: a BAA that covers the model calls, not only the gateway software.
Card processing fees; per-request charges for team-wide ZDR and allowlists
Yes, custom
Not listed in its HIPAA guide
No
Managed
3. Portkey (Prisma AIRS AI Gateway)
No, your provider keys
Plan-based
No, it does not sell tokens
Covers Portkey, not the model calls
Yes
Managed or private
4. OpenRouter
Yes
5.5% platform fee (8% Business); 5% BYOK fee over $25K/month
Fee discounts on Enterprise, not token discounts
Not offered on its pricing page
No
Managed
5. Cloudflare AI Gateway
Yes, via Unified Billing
5% fee on credits
Not listed
Not stated
No
Managed edge
6. LiteLLM
No, your provider keys
Enterprise license plus hosting
No, it does not sell tokens
No
Via add-ons
Self-hosted
7. Bifrost
No, your provider keys
Enterprise license plus hosting
No, it does not sell tokens
No
Via guardrails
Self-hosted
1. Concentrate AI: the enterprise LLM gateway that includes the inference
Concentrate AI is a fully managed gateway that supplies the inference itself. One OpenAI-compatible API reaches 200+ frontier and open models from OpenAI, Anthropic, Google, xAI, DeepSeek, Moonshot, MiniMax and more, listed live in Model Fortress. Your teams stop logging into provider consoles. Everything runs on scoped keys under one contract.
Volume-based pricing: token prices go down as your committed spend goes up. Of the seven gateways here, only Concentrate AI and Vercel discount the token price itself, and only Concentrate AI does it with no fees on top.
No fees: no markup on tokens, no platform fee, no card processing fee, no BYOK fee and no per-request charges for controls like zero data retention.
Security review: SOC 2 Type II (Trust Center), SSO, role-based access, team workspaces, audit logs of who changed what, a DPA and a full-time Data Protection Officer.
Data controls: redaction of PII, PCI and PHI from prompts, responses or both before traffic reaches a provider, and zero data retention enforced by provider, team or key.
Regulated data: a BAA that covers the gateway and the model calls on BAA-eligible providers, with 71 BAA-eligible models. BAA use is $499/month, with no per-request fees and no markup on tokens. Non-BAA use has no subscription fee.
Reliability: pick a model, pick your policies, and fallbacks across providers are built in.
Best for: enterprises that want every model under one contract, a gateway their security team will approve, and a bill that shrinks as usage grows.
2. Vercel AI Gateway: strong pricing, controls cost extra
Vercel AI Gateway sells tokens at provider list price with no markup and offers custom volume discounts. Card payments carry payment processing fees unless you are invoiced as an Enterprise team, and team-wide zero data retention and provider allowlists cost $0.10 per 1,000 requests each. Vercel's HIPAA guide does not list AI Gateway among the services covered by its BAA, and it has no built-in redaction.
Best for: teams already on Vercel that do not handle PHI.
3. Portkey (now Prisma AIRS AI Gateway): controls without the inference
Portkey is now Prisma AIRS AI Gateway from Palo Alto Networks. It adds routing, guardrails and governance on top of provider keys you store with it, so you still sign and manage a contract with every model provider. Its custom BAAs cover Portkey's own service, not the model calls.
Best for: Palo Alto Networks customers that already hold every provider contract.
4. OpenRouter: the biggest catalog, with fees on every top-up
OpenRouter supplies inference across a large catalog. Its pricing page lists a 5.5% platform fee (8% on Business), a 5% fee on BYOK usage above $25,000 a month, and SSO only on Enterprise, where it offers fee discounts rather than discounts on the tokens. It does not mention a BAA.
Best for: developers and smaller teams trying many models quickly.
5. Cloudflare AI Gateway: edge caching, 5% on credits
Cloudflare AI Gateway adds caching, rate limiting and logs at the edge. Bring your own provider keys, or buy credits through Unified Billing, which adds a 5% fee to every credit purchase.
Best for: teams already on Cloudflare that want caching in front of their own provider accounts.
6. LiteLLM: open-source proxy you run yourself
LiteLLM is an open-source proxy your team deploys, scales and patches. It routes to providers with your own keys, so it supplies no inference and cannot discount tokens. SSO and other enterprise features sit behind a paid license.
Best for: platform teams that want to own the proxy and already hold every provider contract.
7. Bifrost: fast self-hosted gateway, no inference
Bifrost is an open-source gateway from Maxim AI that you host in your own VPC. It routes with your own provider keys, so you still negotiate and track a contract and, for PHI, a BAA with every model provider. Its own healthcare page says "Every LLM vendor requires a separate BAA negotiation."
Best for: teams that require self-hosting and will run their own provider relationships.
Which gateway is best for an enterprise with negotiated provider discounts?
Concentrate AI, because you do not have to choose. Bring your existing provider keys at no fee and keep your negotiated rates, and buy everything else through Concentrate AI with volume-based token discounts. Both run through the same API, the same controls and the same fallbacks. Self-hosted gateways keep your discounts but give you nothing for new providers, and marketplaces charge a fee on top of both.
FAQ: enterprise LLM gateways
What is the best enterprise LLM gateway in 2026?
Concentrate AI. It supplies inference for 200+ models under one contract, passes security review with SOC 2 Type II, SSO and redaction, offers a BAA, and discounts tokens on volume with no fees on top.
Which LLM gateways offer volume discounts on tokens?
Of the seven here, Concentrate AI and Vercel AI Gateway. Concentrate AI does it with no card processing fees and no per-request charges for controls.
Do self-hosted gateways like LiteLLM or Bifrost supply model access?
No. They route with your own provider keys, so you keep a separate contract with every model provider.
Which enterprise LLM gateway can be used with PHI?
Concentrate AI signs a BAA that covers the gateway and the model calls on BAA-eligible providers. BAA use is $499/month, with no per-request fees and no markup on tokens. See the Top 5 AI gateways for healthcare.
How long does it take to switch?
Change one base URL in your OpenAI or Anthropic SDK. Your code, prompts and keys stay the same.
Blog