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
TensorZero is an open source LLMOps platform that unifies an LLM gateway, observability, evaluation, optimization, and experimentation. It creates a feedback loop for optimizing LLM applications, turning production metrics and human feedback into smarter, faster, and cheaper models and agents. The gateway lets teams integrate once and access every major LLM provider through a single unified API, including API and self-hosted models, with support for tool use, structured outputs, batch inference, embeddings, multimodal inputs, caching, routing, retries, fallbacks, load balancing, granular timeouts, usage tracking, custom rate limits, and provider-key protection. Built for performance in Rust, TensorZero is designed for extreme throughput and low-latency production workloads while still letting teams adopt only the components they need. Its observability layer stores inferences and feedback in the user’s own database, available programmatically or through the open source UI.
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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
LLM developers and engineering teams that need to manage gateways, observability, evaluations, optimization, and experimentation for AI applications
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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
Not 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 InformationTensorZero
Founded: 2023
United States
github.com/tensorzero/tensorzero
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Alternatives |
Alternatives |
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Categories |
Categories |
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Integrations
GPT-5
Supported
GPT-5.1
Supported
GPT-5.1 Instant
Supported
GPT-5.1 Thinking
Supported
GPT-5.2
Supported
GPT-5.2 Instant
Supported
GPT-5.2 Pro
Supported
GPT-5.4
Supported
GPT-5.5
Supported
GPT-5.6 Luna
Supported
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Integrations
GPT-5
Not Supported
GPT-5.1
Not Supported
GPT-5.1 Instant
Not Supported
GPT-5.1 Thinking
Not Supported
GPT-5.2
Not Supported
GPT-5.2 Instant
Not Supported
GPT-5.2 Pro
Not Supported
GPT-5.4
Not Supported
GPT-5.5
Not Supported
GPT-5.6 Luna
Not Supported
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