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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.

About

​Undrstnd Developers empowers developers and businesses to build AI-powered applications with just four lines of code. Experience incredibly fast AI inference times, up to 20 times faster than GPT-4 and other leading models. Our cost-effective AI services are designed to be up to 70 times cheaper than traditional providers like OpenAI. Upload your own datasets and train models in under a minute with our easy-to-use data source feature. Choose from a variety of open source Large Language Models (LLMs) to fit your specific needs, all backed by powerful, flexible APIs. Our platform offers a range of integration options to make it easy for developers to incorporate our AI-powered solutions into their applications, including RESTful APIs and SDKs for popular programming languages like Python, Java, and JavaScript. Whether you're building a web application, a mobile app, or an IoT device, our platform provides the tools and resources you need to integrate our AI-powered solutions seamlessly.

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

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

Audience

Companies seeking a tool to integrate high-performance AI capabilities to enhance customer experiences and streamline operations

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 Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

No information available.
Free Version Not Supported
Free Trial Supported

Pricing

No information available.
Free Version Not Supported
Free Trial Not 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

FastRouter
Founded: 2025
United States
fastrouter.ai/

Company Information

Undrstnd
United States
dev.undrstnd-labs.com

Alternatives

Alternatives

Pioneer

Pioneer

Pioneer.ai

Categories

AI Gateways Supported
API Gateways Supported
LLM Routers Supported

Categories

AI Gateways Supported
AI Inference Supported

Integrations

Mistral AI Supported
OpenAI Supported
Claude Opus 4 Supported
GPT-5 Supported
GPT-5.1 Instant Supported
GPT-5.1 Pro Supported
GPT-5.2 Thinking Supported
GPT-5.4 mini Supported
GPT-5.4 nano Supported
GPT-5.6 Sol Supported
GPT-5.6 Terra Supported
GPT-6.1 Sol Supported
Gemini 3 Deep Think Supported
Gemini 3.1 Flash-Lite Supported
Gemini 3.1 Pro Supported
Grok 4 Supported
Grok 4.1 Supported
Grok 4.1 Thinking Supported
Groq Not Supported
JavaScript Not Supported

Integrations

Mistral AI Supported
OpenAI Supported
Claude Opus 4 Not Supported
GPT-5 Not Supported
GPT-5.1 Instant Not Supported
GPT-5.1 Pro Not Supported
GPT-5.2 Thinking Not Supported
GPT-5.4 mini Not Supported
GPT-5.4 nano Not Supported
GPT-5.6 Sol Not Supported
GPT-5.6 Terra Not Supported
GPT-6.1 Sol Not Supported
Gemini 3 Deep Think Not Supported
Gemini 3.1 Flash-Lite Not Supported
Gemini 3.1 Pro Not Supported
Grok 4 Not Supported
Grok 4.1 Not Supported
Grok 4.1 Thinking Not Supported
Groq Supported
JavaScript Supported
Claim FastRouter and update features and information
Claim FastRouter and update features and information
Claim Undrstnd and update features and information
Claim Undrstnd and update features and information