Compare Apigee AI Gateway and OpenRouter side by side. Both are tools in the LLM Gateways category.
Updated April 29, 2026
Choose Apigee AI Gateway if production-ready.
Choose OpenRouter if largest model catalog in the gateway space — 300+ models.
Want to compare Apigee AI Gateway and OpenRouter on your own traffic?
Respan lets you trace LLM and agent calls across any model or framework, A/B test prompts on production traffic, and route requests across 250+ models through one gateway. Free tier covers 10K traces per month. Setup in 5 minutes, no credit card.
| Category | LLM Gateways | LLM Gateways |
| Pricing | Enterprise | Free tier + pay-as-you-go (passthrough + 5.5% fee) |
| Best For | Google Cloud enterprises who need to manage AI API traffic | Developers and teams who want one API for hundreds of LLMs without provider lock-in |
| Website | cloud.google.com | openrouter.ai |
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Curated quotes from Hacker News, Reddit, Product Hunt, and review blogs. Dates shown so you can judge whether early criticism still applies.
“OpenRouter adds 5% on top of the model provider's base prices — for a single API across 300+ models that's a fair tax.”
“The ability to track cost of each request and separate usages through different API keys is huge for indie devs running side projects.”
“OpenRouter claims ~25ms added latency in ideal conditions, with ~40ms typical — acceptable for most apps but noticeable on streaming.”
“Free models are somewhat fragile with timeouts and require sleep between invocations — most users end up moving to paid models.”
AI platform providing comprehensive solutions for enterprise applications. The platform provides essential capabilities for modern AI applications with focus on scalability and reliability.
OpenRouter is a unified LLM gateway that routes requests to the best available provider for each model, with a single API key giving access to 300+ models from OpenAI, Anthropic, Google, Meta, Mistral, Cohere, and dozens of smaller providers. It exposes an OpenAI-compatible API, so any existing OpenAI SDK code works unchanged.
Two pricing tiers: a Free tier (25+ free-of-charge models, 50 requests/day, 20 RPM, raised to 1,000/day after $10+ in credits) and Pay-as-you-go (300+ models, passthrough provider rates, 5.5% platform fee on credit-card purchases / 5% on crypto). OpenRouter adds ~25-40ms latency over direct provider calls in typical conditions.
Major use cases: avoiding vendor lock-in across OpenAI/Anthropic/Google, fallback routing when a provider is down, cost optimization across price-equivalent models, and tracking spend per API key. Free credits expire after 365 days. As of 2026, OpenRouter is the most-used model gateway for AI startups and indie developers building model-agnostic applications.
Unified API platforms and proxies that aggregate multiple LLM providers behind a single endpoint, providing model routing, fallback, caching, rate limiting, cost optimization, and access control.
Browse all LLM Gatewaystools →One platform for routing, observability, tracing, and evals across every LLM provider.