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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

OpenRouter Fusion turns a prompt into a small multi-model deliberation, making combined model results as easy to call as a single model. A panel of expert models analyzes the prompt in parallel with web search and web fetch enabled, then a judge model compares their responses and returns structured analysis that includes consensus, contradictions, partial coverage, unique insights, and blind spots. The final answer is written from that analysis, helping users benefit from multiple perspectives rather than relying on one model alone. Fusion is built for cases where a single model is not enough, such as research, expert critique, compare-and-contrast prompts, multi-domain questions, or any task where being wrong is expensive. Users can call Fusion directly through the openrouter/fusion model alias, enable it as the fusion server tool, or configure it through the Fusion plugin; all three entry points use the same pipeline.

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

AI users and developers wanting to run multiple models side by side, compare their strengths, and combine them into a stronger answer

Support

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

Support

Phone Support Not Supported
24/7 Live Support 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

Free
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 Not Supported
In Person Not Supported

Company Information

FastRouter
Founded: 2025
United States
fastrouter.ai/

Company Information

OpenRouter
Founded: 2023
United States
openrouter.ai/fusion

Alternatives

Alternatives

Categories

AI Gateways Supported
API Gateways Supported
LLM Routers Supported

Categories

AI Gateways Supported
LLM Routers Supported

Integrations

GPT-5.1 Pro Supported
GPT-5.1 Thinking Supported
GPT-5.2 Supported
GPT-5.2 Thinking Supported
GPT-5.3 Instant Supported
GPT-5.4 Supported
GPT-5.4 Pro Supported
GPT-5.4 nano Supported
GPT-5.5 Supported
GPT-5.5 Pro Supported
GPT-5.6 Sol Supported
GPT-5.6 Sol Ultrafast Supported
GPT-5.6 Terra Supported
GPT-6 Sol Supported
GPT‑5.4 Thinking Supported
Gemini 3.1 Flash-Lite Supported
Grok 4.1 Supported
Grok 4.1 Fast Supported
Holo4 Supported
OpenRouter Not Supported

Integrations

GPT-5.1 Pro Not Supported
GPT-5.1 Thinking Not Supported
GPT-5.2 Not Supported
GPT-5.2 Thinking Not Supported
GPT-5.3 Instant Not Supported
GPT-5.4 Not Supported
GPT-5.4 Pro Not Supported
GPT-5.4 nano Not Supported
GPT-5.5 Not Supported
GPT-5.5 Pro Not Supported
GPT-5.6 Sol Not Supported
GPT-5.6 Sol Ultrafast Not Supported
GPT-5.6 Terra Not Supported
GPT-6 Sol Not Supported
GPT‑5.4 Thinking Not Supported
Gemini 3.1 Flash-Lite Not Supported
Grok 4.1 Not Supported
Grok 4.1 Fast Not Supported
Holo4 Not Supported
OpenRouter Supported
Claim FastRouter and update features and information
Claim FastRouter and update features and information
Claim OpenRouter Model Fusion and update features and information
Claim OpenRouter Model Fusion and update features and information