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Category · 11 tools · 12 comparisons

LLM routers and gateways

One API for many models: routing, fallbacks, cost tracking and caching across providers.

Our ranked shortlist: the best LLM routers and gateways →

At a glance

Tools tracked
11
Entry plans
$12–$79/mo
Typical entry plan
$49/mo
Free plan
9 of 11
Cheapest paid
NanoGPT, $12/mo
Best value score
LiteLLM, 9/10

Every tool we cover

API pricing →
ToolScoreFromTop listed planFree planTrialPages
Vercel AI Gateway7.8Free—Yes—ReviewPricing
OpenRouter7.6Free—Yes—ReviewPricingAlternatives
Portkey7.6$49/mo$49/moYes—ReviewPricingAlternatives
Requesty7.5Free—Yes—ReviewPricing
Eden AI7.2Free*—Yes—ReviewPricing
YepAPI7.2Custom*—NoYesReview
LiteLLM7.1Free*—Yes30 daysReviewPricingAlternatives
Cloudflare AI Gateway7.0Free*—Yes—Review
Helicone6.8$79/mo$799/moYes7 daysReviewPricingAlternatives
NanoGPT6.5$12/mo$12/moYes—ReviewPricingAlternatives
ZenMux6.2Custom*—No—Review

* Lower confidence: the vendor's pricing page couldn't be read directly or didn't list every price, so the figure was compiled from other public sources and may be incomplete. Check the vendor's page before you buy.

Head-to-head

Highest scored

LLM routers and gateways: quick answers

How much do LLM routers and gateways cost?

Paid plans for the 11 LLM routers and gateways we track start between $12 and $79 a month, and the typical entry plan is about $49 a month. 9 of them have a free plan. YepAPI and ZenMux don't publish a starting price. Prices are the vendors' own, checked Nov 10, 2026; most quote the per-month price when billed annually.

Which LLM routers and gateway is the cheapest?

NanoGPT has the lowest paid entry plan at $12 a month, followed by Portkey at $49. If you can live with limits, Vercel AI Gateway, OpenRouter, Portkey and Requesty have a free plan.

Which LLM routers and gateways have a free plan?

Vercel AI Gateway, OpenRouter, Portkey, Requesty, Eden AI, LiteLLM, Cloudflare AI Gateway, Helicone and NanoGPT have a free plan. YepAPI offers a free trial instead. Free plans are usually capped on usage, seats or features; each review lists the limits.

Which LLM routers and gateway scores highest in our reviews?

Vercel AI Gateway scores highest at 7.8/10. A hosted model-routing API that cuts integration work, with production costs and limits to check. On value for money alone, LiteLLM rates best (9/10).