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About

Factory Router is an automatic model-selection system for autonomous software engineering workflows, designed to deliver frontier performance at lower cost and with higher reliability. Instead of expecting engineers to manually choose the best model for every task, Factory Router automatically selects the right model for each Droid session, drawing from a diverse pool of frontier and efficient models. Simple questions, mechanical refactors, documentation updates, small bug fixes, search-heavy investigations, and other routine work can be handled by efficient models, while harder work that genuinely needs deeper reasoning can stay on frontier models. If the selected model struggles to complete a task, Factory Router can move the session to a more capable model to reliably preserve high-quality outcomes. It also routes across models, providers, and capacity sources when endpoints degrade, rate limits hit, or capacity becomes constrained, helping Droid sessions keep working.

About

FastRouter is a unified API gateway that enables AI applications to access many large language, image, and audio models (like GPT-5, Claude 4 Opus, Gemini 2.5 Pro, Grok 4, etc.) through a single OpenAI-compatible endpoint. It features automatic routing, which dynamically picks the optimal model per request based on factors like cost, latency, and output quality. It supports massive scale (no imposed QPS limits) and ensures high availability via instant failover across model providers. FastRouter also includes cost control and governance tools to set budgets, rate limits, and model permissions per API key or project, and it delivers real-time analytics on token usage, request counts, and spending trends. The integration process is minimal; you simply swap your OpenAI base URL to FastRouter’s endpoint and configure preferences in the dashboard; the routing, optimization, and failover functions then run transparently.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Enterprise engineering teams that want to reduce AI coding costs by automatically routing each task to the most suitable model and provider

Audience

Developers and AI engineering teams wanting a tool providing access, optimized performance, and cost governance under a single API

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Free Version Supported
Free Trial Not Supported

Pricing

No information available.
Free Version Not Supported
Free Trial Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Company Information

Factory Router
Founded: 2023
United States
factory.ai/news/factory-router

Company Information

FastRouter
Founded: 2025
United States
fastrouter.ai/

Alternatives

Alternatives

Categories

AI Gateways Supported
LLM Routers Supported

Categories

AI Gateways Supported
API Gateways Supported
LLM Routers Supported

Integrations

Claude Opus 3 Supported
Factory Supported
GPT-5 Not Supported
GPT-5.1 Instant Not Supported
GPT-5.1 Pro Not Supported
GPT-5.2 Pro Not Supported
GPT-5.2 Thinking Not Supported
GPT-5.3 Instant Not Supported
GPT-5.4 mini Not Supported
GPT-5.5 Not Supported
GPT-5.5 Pro Not Supported
GPT-5.6 Luna Not Supported
GPT-5.6 Sol Ultrafast Not Supported
GPT-6 Sol Not Supported
GPT‑5.4 Thinking Not Supported
Grok 4.1 Thinking Not Supported
Holo4 Not Supported
Mistral AI Not Supported
OpenAI Not Supported
OpenAI Bel Not Supported

Integrations

Claude Opus 3 Not Supported
Factory Not Supported
GPT-5 Supported
GPT-5.1 Instant Supported
GPT-5.1 Pro Supported
GPT-5.2 Pro Supported
GPT-5.2 Thinking Supported
GPT-5.3 Instant Supported
GPT-5.4 mini Supported
GPT-5.5 Supported
GPT-5.5 Pro Supported
GPT-5.6 Luna Supported
GPT-5.6 Sol Ultrafast Supported
GPT-6 Sol Supported
GPT‑5.4 Thinking Supported
Grok 4.1 Thinking Supported
Holo4 Supported
Mistral AI Supported
OpenAI Supported
OpenAI Bel Supported
Claim Factory Router and update features and information
Claim Factory Router and update features and information
Claim FastRouter and update features and information
Claim FastRouter and update features and information