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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

Substrate is the platform for agentic AI. Elegant abstractions and high-performance components, optimized models, vector database, code interpreter, and model router. Substrate is the only compute engine designed to run multi-step AI workloads. Describe your task by connecting components and let Substrate run it as fast as possible. We analyze your workload as a directed acyclic graph and optimize the graph, for example, merging nodes that can be run in a batch. The Substrate inference engine automatically schedules your workflow graph with optimized parallelism, reducing the complexity of chaining multiple inference APIs. No more async programming, just connect nodes and let Substrate parallelize your workload. Our infrastructure guarantees your entire workload runs in the same cluster, often on the same machine. You won’t spend fractions of a second per task on unnecessary data roundtrips and cross-region HTTP transport.

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

Individuals and companies wanting a tool to run multi-step AI workloads

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

$30 per month
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

Substrate
Founded: 2023
United States
www.substrate.run/

Alternatives

Alternatives

Substrate

Substrate

Parity Technologies
Router

Router

Ramp
Router

Router

Ramp

Categories

AI Gateways Supported
API Gateways Supported
LLM Routers Supported

Categories

AI Development Supported
AI Inference Supported
AI Infrastructure Supported
LLM Routers Supported
Vector Databases Supported

Integrations

GPT-5.2 Pro Supported
GPT-5.4 Pro Supported
GPT-5.4 mini Supported
GPT-5.5 Supported
GPT-5.5 Pro Supported
GPT-5.6 Sol Supported
GPT-5.6 Terra Supported
GPT-6 Luna Supported
GPT-6 Sol Supported
GPT‑5.4 Thinking Supported
Gemini 2.5 Pro Supported
Gemini 3 Deep Think Supported
Gemini 3.5 Pro Supported
Grok 4 Supported
Grok 4.3 Supported
OpenAI Supported
Python Not Supported
Slack Not Supported
Stable Diffusion Not Supported
TypeScript Not Supported

Integrations

GPT-5.2 Pro Not Supported
GPT-5.4 Pro Not Supported
GPT-5.4 mini Not Supported
GPT-5.5 Not Supported
GPT-5.5 Pro Not Supported
GPT-5.6 Sol Not Supported
GPT-5.6 Terra Not Supported
GPT-6 Luna Not Supported
GPT-6 Sol Not Supported
GPT‑5.4 Thinking Not Supported
Gemini 2.5 Pro Not Supported
Gemini 3 Deep Think Not Supported
Gemini 3.5 Pro Not Supported
Grok 4 Not Supported
Grok 4.3 Not Supported
OpenAI Not Supported
Python Supported
Slack Supported
Stable Diffusion Supported
TypeScript Supported
Claim FastRouter and update features and information
Claim FastRouter and update features and information
Claim Substrate and update features and information
Claim Substrate and update features and information