FastRouter.ai

What is FastRouter.ai?

FastRouter.ai is an AI gateway that gives teams a single OpenAI-compatible API to reach more than 200 text, image, video, audio and embedding models. An auto-router picks a model by cost, latency or quality, and fallbacks, retries and load balancing move requests to healthy providers when one fails. Teams can use virtual model aliases, bring their own provider keys, set budget caps and rate limits, and manage access with roles. Logs, dashboards, distributed tracing, response caching, guardrails and an MCP gateway cover observability and governance, and an Insights report audits the LLM bill each week for savings. FastRouter passes model costs through at zero markup on every plan. Plans are Starter at $0 per month, Pro at $199 per month, Business at $799 per month and a custom Enterprise plan that can be self-hosted. Annual billing saves 16%.

Use cases

• Route requests across many LLM providers
• Add fallbacks and retries to AI apps
• Cap spend per project and API key
• Cache responses to cut model costs
• Compare models side by side
• Monitor latency, errors and cost
• Self-host an AI gateway

Who it's for

• AI engineers
• Platform teams
• Enterprise AI teams
• Developers

Why use FastRouter.ai

• One integration replaces separate SDKs and keys for each model provider.
• Zero markup means the plan fee covers the platform while model usage is billed at provider list prices.
• Automatic failover keeps applications running when a provider has problems.
• Budget caps, roles and logs give finance and platform teams visibility into AI usage.

FastRouter.ai features

• OpenAI-compatible API covering 200+ models
• Auto-router that chooses by cost, latency and quality
• Fallbacks, retries and load balancing across providers
• Virtual model aliases and fallback lists
• Bring-your-own-key routing with request limits per plan
• Response caching, prompt caching and prompt compression
• Guardrails in observe or validate mode
• Logs, dashboards, W3C distributed tracing and alerts
• MCP gateway, evals and prompt optimization
• Roles, budget caps and rate limits
• Weekly Insights audit of your LLM bill
• Self-hosting on the Enterprise plan

FastRouter.ai integrations

• Claude
• Gemini
• GPT
• Grok
• Veo
• Nano Banana

How to get started with FastRouter.ai

1. Create an account and point your OpenAI-compatible client at the FastRouter endpoint.
2. Pick models directly, or create virtual aliases and fallback lists.
3. Set budgets, rate limits, caching and guardrails for each project.
4. Review dashboards and the weekly Insights audit, then adjust routing to lower cost.

FastRouter.ai limitations

• Starter allows 1M requests per month on one BYOK key, with 7-day log retention
• Response caching, guardrails and tracing are not on the Starter plan
• Self-hosting is only on the Enterprise plan
• Model costs are billed at provider list prices, so spend scales with usage

FastRouter.ai pricing

Yes, FastRouter.ai has a free plan. Paid plans start at $199 per month, according to the official pricing page on 24 Oct 2026.

FastRouter.ai plans

• Starter

  $0/month

  Free forever

  • 3 organizations
  • Up to 5 virtual model aliases
  • 1 BYOK key and 1M requests per month
  • 200K logs per month, 7-day retention
  • Community and docs support

• Pro

  $199/month

  Billed monthly

  • 10 organizations and 20 members
  • Up to 20 virtual model aliases
  • 10 BYOK keys and 5M requests per month
  • 1M logs per month, 60-day retention
  • Response caching, tracing and guardrails
  • Email support with 4-day SLA

• Business

  $799/month

  Billed monthly

  • 100 organizations and 100 members
  • Up to 100 virtual model aliases
  • 50 BYOK keys and 50M requests per month
  • 5M logs per month, 120-day retention
  • Provisioning and service-account keys
  • Email support with 2-day SLA

• Enterprise

  Custom

  Custom terms, invoiced annually

  • Self-hosting on your own infrastructure
  • Unlimited orgs, members and projects
  • Negotiated BYOK and volume discounts
  • Unlimited logs and custom retention
  • Dedicated Slack and SLA

Plans as listed on the official pricing page on 24 Oct 2026. Prices can change and may vary by country or exclude tax. Check the official pricing page.

FastRouter.ai alternatives

The main FastRouter.ai alternatives listed on Debuly are OpenRouter, LiteLLM, Portkey, Helicone, Eden AI and EUrouter. The table compares pricing and platforms; order is A–Z.

1. 

   Eden AI

   French AI gateway with one OpenAI-compatible API to about 1,000 models, plus routing, cost tracking and team budgets.

   Developer platformsAutomation and agentsCoding
   PaidVisit Eden AI (official site)
2. 

   EUrouter

   OpenAI-compatible API gateway that routes requests to AI models while keeping data in the EU

   Developer platforms
   FreemiumVisit EUrouter (official site)
3. 

   Helicone

   Open-source LLM observability and AI gateway that logs requests, tracks cost and latency, and routes to 100+ models through one API.

   Developer platformsCoding
   FreemiumVisit Helicone (official site)
4. 

   LiteLLM

   Open-source AI gateway and Python SDK that gives one OpenAI-format API to 100+ LLM providers, with keys, budgets and cost tracking.

   Developer platformsCodingAutomation and agents
   Open sourceVisit LiteLLM (official site)
5. 

   OpenRouter

   Unified OpenAI-compatible API for 500+ AI models with provider fallbacks, pay-as-you-go credits and a free tier

   Developer platformsChat assistantsAutomation and agents
   FreemiumVisit OpenRouter (official site)
6. 

   Portkey

   AI gateway with observability, guardrails, caching and prompt management for teams running LLM apps in production.

   Developer platformsAutomation and agents
   FreemiumVisit Portkey (official site)

FastRouter.ai FAQ

Sources & verification

Facts on this page come from the official sources below, each with the date we read it. Written by Debuly; the vendor did not review this page.

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