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AI Gateway Comparison
An AI gateway sits between your application and one or more model providers, exposing a single API and handling routing, fallbacks, caching, cost tracking and access control. This page compares 37 of them, including both dedicated gateways and inference APIs that route across providers.
Blank cells mean the provider does not publish that detail, not that the answer is no. AI Gateways Explained covers when you actually need one.
37 gateways
25 with a free tier
10 self-hostable
10 EU-headquartered
| Gateway | Starting price | Free tier | Hosting | HQ | What it does |
|---|---|---|---|---|---|
| Featured | Pay per prompt, from $0.10 | Yes | Cloud | One OpenAI-compatible API for 600+ models, with text billed at provider list prices | |
| From EUR 99/month | Yes | Cloud | DE | EU-hosted AI integration platform combining a provider gateway, document extraction, ev... | |
| Free tier, then $0.10/1,000 requests | Yes | Cloud | US | LLM gateway built around spend limits enforced before a request reaches a provider | |
| Free | Yes | Both | Open-source AI gateway in Rust with one OpenAI-compatible API across 100+ LLM providers | ||
| Cloud | VN | Vietnamese AI gateway with one API key for 400+ text, image, video and audio models, pr... | |||
| Pay-as-you-go, EUR 10 minimum top-up | Cloud | NL | EU-hosted OpenAI-compatible inference API with data residency, PII pseudonymization and... | ||
| Free (open source) | Yes | Self hosted | Open-source desktop manager and local router for AI coding tools | ||
| Free | Cloud | US | LLM proxy with caching, logging, rate limiting, and cost analytics | ||
| Yes | Cloud | Unified AI API gateway providing access to 600+ models from OpenAI, Anthropic, Google, ... | |||
| Pay-per-use + 5% gateway fee | Yes | Cloud | AT | European AI inference gateway with smart routing across EU providers | |
| Free (10K req/mo), 39 EUR/mo (Plus) | Yes | Cloud | NL | European AI gateway that routes to 100+ models with EU data residency | |
| Unified OpenAI-compatible API for routing across 300+ models from 50+ providers | |||||
| OpenAI-compatible API gateway with prepaid balance and usage billing | |||||
| $20/seat/mo | Yes | Both | US | Open-source LLM observability platform for monitoring, debugging, and improving AI appl... | |
| From EUR 0.08/1M input tokens, prepaid balance | Both | Netherlands | EU-hosted inference router with OpenAI and Anthropic drop-in compatibility, plus dedica... | ||
| Prepaid credits, USD 20 minimum funding | Cloud | US | Responses API gateway for coding agents, with a public model catalog and per-request sp... | ||
| Cloud | DE | EU-resident OpenAI-compatible API that routes across European model providers, plus pos... | |||
| $3/300 credits | Yes | Cloud | US | Multi-LLM API orchestration platform for comparing and blending AI models | |
| Free (open source) | Yes | Both | US | Unified OpenAI-compatible proxy for 100+ LLM providers with cost tracking and load bala... | |
| Cloud | SG | One OpenAI-compatible endpoint for 54 models, billed in prepaid credits | |||
| Yes | Cloud | US | One OpenAI-compatible API for 500+ text, image, video and speech models, billed from a ... | ||
| Free (25+ free models) | Yes | Cloud | US | Unified API for 400+ AI models across 60+ providers, OpenAI SDK-compatible, pay-as-you-go | |
| Free tier (BlockRun), then usage-based from $0.001/request | Yes | Cloud | Payment router for AI agents: pay per request across LLM APIs and tools from a self-cus... | ||
| Provider token rates, no markup; 3% fee on credit purchases | Yes | SE | European AI gateway: 700+ models through one EU-hosted, OpenAI-compatible API | ||
| Free (1M BYOK requests/mo) | Yes | Both | NL | Sovereign AI gateway and LLMOps platform: model routing, prompt management, evals, and ... | |
| Unified OpenAI-compatible API gateway that routes requests across multiple LLM providers | |||||
| Free to prove, billed only after activation | Yes | Both | GB | Proves a cheaper model matches your current one on your own prompts, then routes to it | |
| Free (Developer), then $49/month | Yes | Both | US | AI gateway for routing to 1,600+ LLMs with observability, guardrails, and prompt manage... | |
| Free tier, then pay-as-you-go at 5% markup | Yes | Cloud | LLM gateway and router with one OpenAI-compatible API across 400+ models | ||
| From $0.001 per agent minute | Cloud | Voice agent infrastructure that routes across STT, TTS and LLM providers with region-pi... | |||
| Free tier, then $24.90/month | Yes | Self hosted | FR | Local proxy that compacts what a coding agent sends to the model | |
| From $0.0880/1M tokens (Qwen3.5-plus) | Yes | HK | Unified OpenAI-compatible API gateway to 100+ models across providers | ||
| Yes | Unified OpenAI-compatible API to 200+ models with smart routing and failover | ||||
| Free tier, then $25/user/month | Yes | Both | US | AI gateway for routing across 250+ LLMs with fallbacks, rate limiting, guardrails, and ... | |
| From EUR 19/month (10M tokens) | Yes | LT | OpenAI-compatible proxy that trims LLM token usage before requests reach your provider | ||
| Free tier, then pay-as-you-go at provider rates | Yes | Cloud | US | Unified API for hundreds of AI models, with built-in rate limiting and key management | |
| From $5/month | Cloud | IN | OpenAI-compatible gateway that routes each request to a smaller model and returns a cos... |
Ordering is alphabetical, apart from featured listings, which are paid placement and are labelled as such. Nothing here is ranked by quality. Want to be featured?
Related reading
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