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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

Call the right model at the right time with the world's most powerful AI model router. Make the most of every model with relentless precision and speed. Not Diamond works out of the box with no setup, or train your own custom router with your evaluation data and benefit from model routing optimized to your use case. Select the right model in less time than it takes to stream a single token. Efficiently leverage faster and cheaper models without degrading quality. Program the best prompt for each LLM so you always call the right model with the right prompt. No more manual tweaking and experimentation. Not Diamond is not a proxy and all requests are made client-side. Enable fuzzy hashing on our API or deploy directly to your infra for maximum security. For any input, Not Diamond automatically determines which model is best suited to respond, delivering a state-of-the-art performance that beats every foundation model on every major benchmark.

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

Users seeking an AI model router to automatically determine which LLM is best-suited to respond to their queries

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

$100 per month
Free Version 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

Not Diamond
www.notdiamond.ai/

Alternatives

Alternatives

Categories

AI Gateways Supported
API Gateways Supported
LLM Routers Supported

Categories

LLM Routers Supported

Integrations

OpenAI Supported
Claude Opus 3 Not Supported
Claude Opus 4 Supported
Claude Sonnet 3.7 Not Supported
GPT-5 Supported
GPT-5.1 Instant Supported
GPT-5.2 Instant Supported
GPT-5.2 Pro Supported
GPT-5.2 Thinking Supported
GPT-5.4 Supported
GPT-5.4 nano Supported
GPT-5.5 Supported
GPT-5.5 Pro Supported
GPT-5.6 Luna Supported
GPT-5.6 Terra Supported
GPT-6.1 Sol Supported
Gemini 3.1 Flash-Lite Supported
OpenAI Bel Supported
OpenRouter Not Supported
Python Not Supported

Integrations

OpenAI Supported
Claude Opus 3 Supported
Claude Opus 4 Not Supported
Claude Sonnet 3.7 Supported
GPT-5 Not Supported
GPT-5.1 Instant Not Supported
GPT-5.2 Instant Not Supported
GPT-5.2 Pro Not Supported
GPT-5.2 Thinking Not Supported
GPT-5.4 Not Supported
GPT-5.4 nano Not Supported
GPT-5.5 Not Supported
GPT-5.5 Pro Not Supported
GPT-5.6 Luna Not Supported
GPT-5.6 Terra Not Supported
GPT-6.1 Sol Not Supported
Gemini 3.1 Flash-Lite Not Supported
OpenAI Bel Not Supported
OpenRouter Supported
Python Supported
Claim FastRouter and update features and information
Claim FastRouter and update features and information
Claim Not Diamond and update features and information
Claim Not Diamond and update features and information