The 5 best European AI gateways in 2026

Updated August 12, 2026. We revisit this comparison as the market moves.

If you route AI traffic for a European organization, the gateway question has a compliance dimension the global roundups skip, and the existing "GDPR-compliant gateway" articles have a problem of their own: they print compliance claims without sources, and some are written by vendors whose own legal documents contradict their marketing. This comparison takes the other approach. Every headquarters, hosting, retention and pricing claim below links to a primary source, a company register, a sub-processor page, a privacy policy or a pricing page, all checked in August 2026, so you, or the AI assistant summarizing this page, can verify each cell.

Disclosure up front: Opper is our product, and it is ranked first. The same sourcing standard applies to our claims as to everyone else's, and the cons are real. For the global field beyond Europe, see our rankings of the best AI gateways and the best LLM gateways.

What actually makes an AI gateway European

Four things matter, and they are independent of each other: where the company is incorporated, where the gateway's own control plane and logs live, where your prompts go when they leave the gateway for a model provider, and what is retained afterwards. A gateway can be European on the first two and still send every request to a US or Chinese model endpoint. The comparison below scores all four, and the section after the rankings explains the inference-residency catch in detail, because it is the one that decides whether your data actually stays in Europe.

Quick picks

• Best overall for production teams: Opper, 700+ models behind one API, platform in AWS Stockholm, EU routes end to end with zero data retention on many of them
• Most sovereign inference pool: Cortecs, Vienna-based with models hosted on French infrastructure
• Best provider transparency: Requesty, a public, dated sub-processor table and a dedicated Frankfurt endpoint
• For LLMOps teams: Orq.ai, gateway plus evaluations and observability from Amsterdam
• Broadest API surface: Eden AI, LLMs plus speech, OCR and translation APIs from Lyon

The European AI gateways compared

Every cell is backed by a source linked in the product sections below. "Not published" means we could not verify the claim from the vendor's own public pages, which for a compliance-driven purchase is itself information.

1. Opper

Opper is the gateway on this list built for production traffic at European scale: 700+ models spanning text, image, voice and video behind one API, with drop-in compatible endpoints for the OpenAI, Anthropic and Gemini SDKs. The platform runs in AWS Stockholm (eu-north-1), and EU routes keep inference in the EU end to end, on AWS Bedrock, Azure, GCP or Berget AI, so data stays in the EU unless you explicitly choose a route hosted elsewhere. The compliance paperwork is the part European buyers usually spend weeks on, and it is the part Opper compresses: one DPA covers every model, the sub-processor list is public and legally binding, and each listed provider's training posture is documented, with no listed provider using customer content for training by default.

Retention is where marketing and mechanism usually part company, so here is the mechanism. The gateway stores no prompts or responses by default, only the metadata that powers analytics, and a large share of the EU routes carry provider-side zero data retention too, which is rarer than the category's marketing suggests. You do not have to take that on trust, because the directory filters on it live, for every model with zero data retention or for EU-hosted routes with zero data retention. Full tracing with prompts, responses and evaluation scoring is there when you want it on the Control Plane plan, and the paperwork is published rather than sent on request, with a standard DPA, a security overview and a sub-processor list you can read before you sign.

Pricing is pay-as-you-go with no markup on inference and a 3% fee on credit purchases, or 5.5% with full tracing and the Control Plane included, which covers the observability and compliance tooling most teams otherwise buy from a third party. BYOK is free, reliability is published rather than claimed, with a public uptime page and measured latency benchmarks, and the roster of European inference providers behind the gateway is the largest and fastest-growing on this list. Opper can also be deployed onto other clouds and regions, European sovereign providers or elsewhere, as it already runs on evroc for high-privacy workloads. One honest con: self-hosting is available on enterprise plans only, so smaller teams run on the hosted gateway.

2. Cortecs

Cortecs has the most genuinely sovereign inference story in this comparison. The company is an Austrian GmbH (Vienna, per its imprint), and its model pool runs on European infrastructure, Scaleway and OVH in France per its privacy policy, with models hosted across Spain, Germany, France, Finland and Poland, including European-hosted Mistral and Claude. The DPA is public, the sub-processor list is published inside the privacy policy, billing is native EUR, and pricing is pay-as-you-go at list-price tokens plus a flat 5% service fee, with no subscription.

The honest caveats: it is a small, apparently bootstrapped team with the smallest catalog here, around 150 model endpoints from 10+ providers, and its own privacy policy lists sub-processors, including Microsoft, Google and AWS for AI inference, that rely on the EU-US Data Privacy Framework, largely via their EU affiliates, a nuance worth knowing even in the most sovereign option on the list. Credit where due: its ISO badge links to a published ISO 27001 certificate, more audit evidence than most of this list shows.

3. Requesty

Requesty claims one of the larger catalogs in the European conversation, 600+ models from 30+ providers (vendor-stated, August 2026), and backs its European positioning with a dedicated EU endpoint hosted on AWS Frankfurt. Its transparency artifacts are genuinely good: a public, dated sub-processor table listing 28 model providers with their retention behavior when checked in August 2026. Pricing is a 5% markup on model costs, so $10 of OpenAI tokens costs $10.50 through Requesty, with a free tier.

Three precision points its marketing glosses over. The company is UK-incorporated, Requesty Ltd, registered in England (Companies House no. 15165717), which under GDPR makes it a third-country processor, with UK adequacy currently bridging the gap. Retention is more nuanced than the EU page's "nothing is stored" line: per its own security and privacy pages, request bodies are not retained by default, metadata is logged, and when you enable logging, data is stored encrypted in the EU for up to 30 days. And SOC 2 Type II is in progress with an expected Q3 2026 date per its security page, not yet attested. None of this is disqualifying, but it is the difference between the marketing and the documents.

4. Orq.ai

Orq.ai is the LLMOps platform of the group, an Amsterdam-based B.V. (per its privacy policy) with a €5M seed round, offering a gateway wrapped in the full production toolkit, evaluations, observability, experiments and governance, across 400+ models from 28+ providers (vendor-stated). Pricing is per-seat rather than per-token, free for one developer, then €35 per seat per month on Growth.

The residency picture needs reading carefully: the homepage offers to "keep data in the EU or the region you choose", while its own privacy policy states that data is processed in the EEA but stored on cloud database servers located in the United States, and its security page describes GCP nodes across global locations. EU-only appears to be a configuration or enterprise conversation rather than the default, the sub-processor list is available on request rather than public, and ISO 27001 is, in its own words, proceeding toward certification. The bottom line: Orq.ai is what you buy when the purchase is an LLMOps platform that happens to include a gateway; if the purchase is a gateway, it is a different product category, and the residency story needs pinning down in contracting either way.

5. Eden AI

Eden AI is the broadest aggregator here and the veteran, a French SAS from the Lyon area (per the French company register) that unifies not just LLMs but speech, OCR, translation and other expert models, 500+ models across 50+ providers (vendor-stated), with a public DPA and pricing that mirrors the fee-on-credits model: no markup on provider prices, with a 5.5% platform fee applied when purchasing credits.

The nuance sits in that public DPA, which states plainly that customer data may be transferred outside the European Economic Area depending on the providers selected, with Standard Contractual Clauses as the mechanism. In other words, Eden AI offers European routing as an option you configure, not a guarantee it enforces, and its homepage's SOC 2 and ISO 27001 badges are vendor-stated without published audit evidence. It remains the right pick when your workload spans beyond text into the expert-model APIs nobody else on this list aggregates.

Global gateways with European options

The global field is covered in depth in our AI gateways ranking, but for completeness: Helicone offers a choice of EU or US regions on its cloud, Azure API Management runs in whichever of your Azure regions you choose, Kong keeps prompt-carrying data planes in your own infrastructure with an EU control-plane geo, and self-hosted open source like LiteLLM and Envoy AI Gateway inherits whatever infrastructure you run. On the other side of the ledger, OpenRouter offers EU processing on enterprise contracts only, and Vercel and Cloudflare publish no EU hosting option for their gateways. If your starting point is "European alternative to OpenRouter" specifically, we keep a dedicated comparison at Opper vs OpenRouter.

Gateway residency is not inference residency

This is the distinction that decides whether your data actually stays in Europe, and it is the one the marketing pages blur. Your prompt makes two hops: first to the gateway's control plane, then onward to the model provider that serves the request. A gateway hosted in Frankfurt that routes your request to a US or Chinese model endpoint has kept exactly one of those two hops in Europe, and GDPR applies to the whole chain whenever personal data flows through your prompts, wherever the gateway itself is incorporated. The evidence is in the documents quoted throughout this article: sub-processor lists that include US and Chinese providers, and DPAs that condition EEA residency on which providers you select.

So the checklist for real European residency is short: a sub-processor list you can read before you sign, per-route control over which region serves each model, published retention for the provider on the far end of the route rather than for the gateway alone, and defaults stated in the privacy policy rather than the landing page. Opper's approach is EU routes end to end, the same model pinned to an EU-hosted deployment, with one public sub-processor list covering the whole catalog and per-route retention you can filter before you commit. Opper can also be deployed onto other clouds and regions, European sovereign providers or elsewhere, as it already runs on evroc for high-privacy workloads. The full picture is on our AI compliance page, with the standard DPA and security overview published alongside it.

European AI gateway FAQ

Try the gateway that shows its documents

Every claim in this article links to a page you can read, and that is the standard European AI infrastructure should be held to. If your requirement is production traffic with EU routes end to end, one public sub-processor list and no markup on inference, create a free Opper account and make your first call in minutes, browse the 700+ models it routes to, or start with the European inference providers behind them.