Chat01.ai (previously known as OpenAI01.net) is a browser-based chat console built around a simple premise: paste a question, pick a model, and get an answer. The interface offers a model selector covering fast general-purpose chat models as well as heavier reasoning and "thinking" variants, plus premium tiers that unlock the most expensive models. It is a completely independent third-party service and is not produced, sponsored, or endorsed by OpenAI; the model names it displays reference publicly known AI models, but the site itself is an independent platform.
Access is credit-based. Every user receives a small allowance of free daily credits that resets at midnight UTC, and additional permanent credits can be accumulated by inviting other people. Paid plans raise the ceilings and unlock the premium models that carry higher per-query costs. The site also exposes an API for developers who want to route their own applications through the same endpoint.
The product is aimed at people who want a no-friction way to try strong reasoning models — students, hobbyist developers, writers, and anyone who wants a second opinion from an LLM without committing to a paid subscription on day one.