Developer tools · Vendor site 2026-10-04
GPTRouter is Writesonic’s open-source AI model router for balancing traffic across providers such as OpenAI, Anthropic, Cohere, Azure OpenAI, and image models. It offers health checking, failover, cost and latency observability, and a hosted preview with limited daily generations before self-hosting.
Engineering teams that need a self-hosted router to manage multiple LLM and image providers with failover and observability.
Hosted preview access is capped at 10 generations per day unless you deploy your own instance.
GPTRouter helps teams route prompts across many AI providers with failover, observability, and optional hosted preview access before running the router themselves.
What it can do
Unknown is different from unavailable. Each fact carries its own evidence.
| Capability | Value | Evidence | Checked |
|---|---|---|---|
| Open source | Site states GPTRouter is GNU-licensed and free to use with pip install instructions. | Facts sourced | 2026-10-04 |
| Preview hosting | Marketing offers a hosted preview API key limited to 10 generations per day. | Facts sourced | 2026-10-04 |
| Operations stats | Homepage cites billions of tokens processed and over 1.5 million API calls handled on the public deployment. | Facts sourced | 2026-10-04 |
Understand the total cost
Free
Free
Project is licensed under GNU and marketed as free to use; hosted preview offers 10 generations per day before self-deployment.
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GPTRouter is an open-source AI model router that health-checks models, balances traffic between providers, and adds cost and latency observability.
The site lists compatibility with OpenAI, Anthropic, Cohere, Azure OpenAI, DALL·E, Stable Diffusion, GPT-4, LLava2 on Replicate, and additional customizable providers.
GPTRouter is Writesonic’s open-source AI model router for balancing traffic across providers such as OpenAI, Anthropic, Cohere, Azure OpenAI, and image models. It offers health checking, failover, cost and latency observability, and a hosted preview with limited daily generations before self-hosting.
Project is licensed under GNU and marketed as free to use; hosted preview offers 10 generations per day before self-deployment.. This record lists ongoing free access; check the plan limits before starting.
No paid monthly price is listed; this record treats the product as free to start. See the plan cards for entitlements, billing commitments and seat minimums.
Documentation site covers installing GPTRouter and obtaining a preview API key for hosted testing.. API access and subscription access may have different terms; consult the linked sources.
Hosted preview access is capped at 10 generations per day unless you deploy your own instance.
No retained pricing changes yet. A current price alone does not establish a historical trend.
Reviewed vendor source
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