OpenRouter Model FusionOpenRouter
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Related Products
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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.
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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.
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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
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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
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Audience
Developers and AI engineering teams wanting a tool providing access, optimized performance, and cost governance under a single API
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Audience
AI users and developers wanting to run multiple models side by side, compare their strengths, and combine them into a stronger answer
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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Support
Phone Support
Not Supported
24/7 Live Support
Supported
Online
Supported
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API
Offers API
Supported
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API
Offers API
Supported
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Screenshots and Videos |
Screenshots and Videos |
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Pricing
No information available.
Free Version
Not Supported
Free Trial
Supported
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Pricing
Free
Free Version
Supported
Free Trial
Not Supported
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Reviews/
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Reviews/
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Supported
In Person
Not Supported
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Company InformationFastRouter
Founded: 2025
United States
fastrouter.ai/
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Company InformationOpenRouter
Founded: 2023
United States
openrouter.ai/fusion
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Alternatives |
Alternatives |
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Categories |
Categories |
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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
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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
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