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About

OpenRouter is a unified interface for LLMs. OpenRouter scouts for the lowest prices and best latencies/throughputs across dozens of providers, and lets you choose how to prioritize them. No need to change your code when switching between models or providers. You can even let users choose and pay for their own. Evals are flawed; instead, compare models by how often they're used for different purposes. Chat with multiple at once in the chatroom. Model usage can be paid by users, developers, or both, and may shift in availability. You can also fetch models, prices, and limits via API. OpenRouter routes requests to the best available providers for your model, given your preferences. By default, requests are load-balanced across the top providers to maximize uptime, but you can customize how this works using the provider object in the request body. Prioritize providers that have not seen significant outages in the last 10 seconds.

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.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Anyone requiring a tool to find the best models and prices for their prompts

Audience

AI platform engineers building production LLM systems that need one open source stack for routing, observability, evaluation, optimization, and experimentation

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Free Version
Free Trial

Pricing

Free
Free Version
Free Trial

Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 4.0 / 5
support 4.0 / 5

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:

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Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

OpenRouter
openrouter.ai/

Company Information

TensorZero
Founded: 2023
United States
github.com/tensorzero/tensorzero

Alternatives

Alternatives

AgentKit

AgentKit

OpenAI
Bifrost

Bifrost

Maxim AI

Categories

Categories

Integrations

16x Prompt
AiAssistWorks
Aider
Constellation Gate AI
GLM-4.7
GPT-5.2 Pro
GPT-5.2 Thinking
GPT-5.5 Pro
Gemini 3 Pro Image
Gemini Enterprise
Knolli
Llama 4 Scout
MacWhisper
Mazaal AI
Open
Repo Prompt
Scraib
ShipAhead
Trinity-Large-Thinking
Tune AI

Integrations

16x Prompt
AiAssistWorks
Aider
Constellation Gate AI
GLM-4.7
GPT-5.2 Pro
GPT-5.2 Thinking
GPT-5.5 Pro
Gemini 3 Pro Image
Gemini Enterprise
Knolli
Llama 4 Scout
MacWhisper
Mazaal AI
Open
Repo Prompt
Scraib
ShipAhead
Trinity-Large-Thinking
Tune AI
Claim OpenRouter and update features and information
Claim OpenRouter and update features and information
Claim TensorZero and update features and information
Claim TensorZero and update features and information