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AI API Gateway Comparisons 2026

AI API gateways look interchangeable — one API key, call any model — but the real differences are in which models you can actually access, how generous the free tier really is, and how much throughput you get before the rate limits kick in. This page collects every head-to-head we have run across OpenRouter, Groq, Together AI and DashScope so you can jump straight to the matchup you care about. Prices come from each vendor's live pricing page and were re-checked on the date shown, because model rosters and free tier limits change often enough that we verify rather than guess.

11 comparisons · pricing re-verified 2026-09-07

11 comparisons 5 tools 3 with free plans Top rated: OpenRouter 4.3 Paid from $0.03

Still deciding? Read our Best AI API Gateways 2026 roundup, or start from the full AI API Gateways category page.

Frequently asked questions

How many AI API Gateways comparisons are in this hub?

This hub collects 11 comparisons covering 5 tools, including 10 head-to-head pairs. Pricing was last re-verified 2026-09-07.

Which AI API Gateways tool is rated highest?

OpenRouter is the highest-rated tool in this hub at 4.3/5, against an average rating of 4.0 across the 5 tools compared.

Are there free AI API Gateways tools?

3 of the 5 tools in this hub list a free plan; paid plans start at $0.03. Check each vendor's page for current tier limits.

How should I use these comparisons to choose a AI API Gateways tool?

Start with the head-to-head pair for the two tools you are already considering, compare published pricing and the six-dimension scores, then read the linked full review of whichever tool makes the shortlist. Every price line links back to the vendor's pricing page and carries a verification date.