LLM Gateway Platform for Unified Model Access

FastRouter gives engineering and product teams one OpenAI-compatible gateway for accessing 100+ AI models across text, image, video, speech, and embeddings. Route requests intelligently, fail over automatically, govern spend, compare outputs, and monitor production workloads from a single control plane—so teams can move faster without fragile provider-specific integrations or surprise AI costs as usage scales across applications.

Unified LLM gateway platform dashboard

Our LLM Gateway Services

Unify model access, routing, reliability, governance, and monitoring through one production-ready AI gateway for modern engineering teams.

API Access

Access 100+ AI models through one OpenAI-compatible API covering text, image, video, speech, and embeddings, while avoiding separate provider integrations and model-specific code changes.

Model Routing

Automatically route each request based on cost, latency, throughput, or output quality priorities, helping teams use the right model for each task without manual tuning.

Fallback Redundancy

Keep AI applications running through provider outages, rate limits, and model failures with prioritized fallback lists, automatic retries, and multi-provider redundancy built into the gateway.

Observability Insights

Monitor latency, errors, usage, request logs, output quality, and performance trends across every connected provider from one consistent, provider-agnostic dashboard.

Cost Governance

Set project and API-key spend limits, assign member roles, manage model access, and prevent budget surprises across teams and applications.

AI Guardrails

Validate inputs and outputs at the gateway to enforce safety, compliance, structured response quality, and consistent policies across every model provider.

Unified Control Plane

One Gateway for Production AI Operations

FastRouter replaces scattered provider integrations with a durable LLMOps control plane for production AI. Your teams call one OpenAI-compatible API while the platform handles model selection, fallback, cost governance, observability, and quality evaluation behind the scenes. The result is faster experimentation, fewer operational blind spots, stronger reliability, and cleaner control over AI usage as applications scale across teams and modalities.

Engineers monitoring unified LLM gateway dashboard
Built For Production

Customer Outcomes

See how unified routing, governance, and observability help teams operate AI reliably at scale.

"Amazing product. Have had a great experience using FastRouter. Reliable access to models across providers helps removes the worry about outages or vendor lock-in."

Sainath Gupta
Sainath Gupta
The FastRouter Difference

Why Choose FastRouter?

FastRouter brings access, reliability, visibility, and control into one AI operations layer.

Unified Access

One OpenAI-compatible endpoint reduces integration work across 100+ models and multiple providers.

Smart Routing

Per-request routing optimizes for cost, latency, throughput, or quality automatically.

Reliable Failover

Fallback lists and multi-provider redundancy keep applications running through provider disruptions.

Governance

Spend limits, roles, guardrails, logs, and analytics create accountable production AI usage.

Meet The FastRouter Platform

Meet the platform behind unified production AI operations.

FastRouter is designed as the operational foundation for teams running AI in production. Rather than treating a gateway as a thin proxy, the platform combines unified model access with the controls engineering, product, security, and finance teams need every day: routing, fallback, logging, evaluations, guardrails, usage analytics, and consolidated billing. Its OpenAI-compatible approach helps teams preserve familiar development workflows while reducing the burden of provider-specific integrations. The vision is simple: make access to the best AI models flexible, reliable, measurable, and accountable, so organizations can experiment quickly, ship confidently, and scale generative AI workloads without losing visibility or control.

100+ ModelsUnified access across leading AI providers and modalities.
24/7 ReliabilityFailover and redundancy help protect production workloads.
Single APIOpenAI-compatible access simplifies adoption and migration.

Frequently Asked Questions

What is an LLM gateway?

An LLM gateway is an infrastructure layer that sits between your application and multiple AI model providers. Instead of integrating with each provider separately, your app calls one API endpoint. The gateway handles model routing, authentication, failover, logging, spend controls, and policy enforcement across providers like OpenAI, Anthropic, Google Gemini, xAI Grok, and others.

What is the most popular LLM gateway?

What is the difference between MCP gateway and LLM gateway?

Which AI models can I access through FastRouter?

How does FastRouter improve LLM reliability?

Can FastRouter help control AI costs?

Is FastRouter compatible with OpenAI SDK workflows?

Does FastRouter offer free credits or a trial?

Still Have LLM Gateway Questions?

Get clear answers about routing, reliability, governance, and cost control.

Trusted Infrastructure

Awards and Recognition

OpenAI-compatible API trust badge

OpenAI-Compatible API

Drop into existing SDK workflows quickly.

Enterprise governance trust badge

Enterprise Governance

Controls spend, roles, keys, and access.

Production reliability trust badge

Production Reliability

Failover and routing support always-on AI workloads.

Start Building With Unified Model Access

Tell us about your AI workloads, provider stack, reliability goals, and cost constraints. We’ll help you evaluate FastRouter, test the unified API, and identify the fastest path to production-ready model access.

Contact Us Today

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