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LLM gateways pricing compared

One API for several model providers, with routing and logging. Check subscriptions, credit fees and model markups.

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7 services · sources last checked 2026-10-06 · how we compare

What the most-compared services cost

Estimated yearly bill at $10,000 model spend / month. Enter your own usage below.

  1. OpenRouter$6,600/yrStandard credits · 5.5% fee · Published rates
  2. Helicone$948/yrno markup · Modeled rates
  3. Portkey$588/yrno markup · Modeled rates
  4. Vercel AI GatewayFreeno markup · Published rates

Enter your usage to estimate each bill. Services differ in what they include; check the rates, assumptions and extra charges below.

Include engineering time and the cost of running both vendors during the move. Ongoing operating costs are not included.

The estimates below use the default usage. Choose your current provider to compare costs.

ProviderParent jurisdictionFeatures / pricing sourceEst. monthlyEst. yearly
Vercel AI GatewayVercel-hosted unified API to many LLM providers with prepaid credits at provider list price, budgets and fallbacks.🇺🇸 United StatesGDPR DPAPublished rates$0no markup$0
PortkeyAI gateway with observability, guardrails and prompt management; open-source gateway plus hosted plans billed by logged requests.🇺🇸 United Statesopen sourceModeled ratesShows the base Production fee only; logged-request overages are not modeled by the model-spend input.$49no markup$588
HeliconeOpen-source LLM observability platform and AI gateway with request logging, caching and routing; US or EU cloud regions.🇺🇸 United StatesEU residencyopen sourceModeled ratesShows the subscription fee; request, storage and other usage-dependent extras are not modeled by the model-spend input.$79no markup$948
Cloudflare AI GatewayCloudflare-hosted proxy for LLM APIs with analytics, caching, rate limiting, logging and optional unified billing.🇺🇸 United StatesGDPR DPAModeled ratesUnified Billing fee only; BYOK avoids it. Log storage and Logpush overages are excluded.$5005% fee$6,000
RequestyHosted LLM router with a unified API to 600+ models, fallbacks, caching and spend tracking; EU gateway in Frankfurt.🇬🇧 United KingdomEU residencyGDPR DPAPublished rates$5005% fee$6,000
OpenRouterHosted unified API to hundreds of LLMs from many providers, billed via prepaid credits with a fee on credit purchases.🇺🇸 United StatesEU plan availableGDPR DPAPublished rates$550Standard credits · 5.5% fee$6,600

Excludes the model spend itself. Self-hosted options cost the compute you run them on.

Need EU residency? Turn on the EU filter to pick a plan that includes it, which may cost more. “EU plan available” alone does not mean the price shown includes residency. Shared links save your inputs and filters, but prices can change.

Self-hosted options

Operating cost not estimated · servers, licenses and engineering time are yours. We list these separately because there’s no calculated bill to compare with managed services.

Head-to-head comparisons

LLM gateways pricing explained

What drives the bill

Gateways sit between your app and the model APIs and give you one API for many models, fallbacks, caching, logging and spend limits. They charge in one of three ways: a percentage of your model spend, a flat subscription, or nothing (self-hosted open source, or free gateways from platforms that make money elsewhere). A percentage fee looks small but grows with your spend. At $10,000 a month of model usage, 5% is $6,000 a year.

Costs the calculator leaves out

When paying more makes sense

A single account and bill for several model providers can be useful for prototypes and small teams. As model spend grows, compare percentage fees with flat subscriptions and self-hosting. Include logging, routing features and the work of running a proxy in that comparison.