# SelGPT > SelGPT (selgpt.app) is an AI chat app with four models in one place, each chosen for a different kind of work. Also written: Sel GPT, SelGPT AI, selgpt.app. No hidden limits, no ads, and no models quietly swapped for cheaper ones. SelGPT gives you four top AI models, including the one ranked #1 in the world, from $9.99 a month. ## Models - Sel-Vega (Everyday): Quick answers, writing, and reading the files and images you share. Included in: Every plan. - Sel-Altair (Code): Writes, reviews and debugs code across the languages you work in. Included in: Plus and above. - Sel-Rigel (Reasoning): Works through analysis, research and hard problems step by step. Included in: Plus and above. - Sel-Sirius (Our most capable): For work that has to be right the first time. Included in: Plus and above. ## Plans - Free (free): Try SelGPT for everyday questions. Sel-Vega, about 50 messages a month, Upload 3 files or images a day. - Plus ($9.99 a month billed yearly or $19.99 monthly): All four models for serious work. Unlimited Sel-Vega, Sel-Altair, Sel-Rigel and Sel-Sirius from a monthly allowance, About 950 Sel-Rigel or 80 Sel-Sirius messages a month, Upload 50 files or images a day. - Pro (5× Plus: $49.99 a month billed yearly or $99.99 monthly; 15× Plus: $99.99 a month billed yearly or $199.99 monthly): For people who use AI all day. Unlimited Sel-Vega, 5× the Plus allowance, About 400 Sel-Sirius messages a month, Unlimited uploads. ## Questions ### What is SelGPT? SelGPT (selgpt.app) is an AI chat app with four models in one place: Sel-Vega for everyday questions, Sel-Altair for code, Sel-Rigel for reasoning and Sel-Sirius, our most capable model. Every answer can search the web and cite its sources. ### How is SelGPT different from ChatGPT? In SelGPT the model you pick is always the one that answers, and a live meter shows how much of your allowance is left. There are no ads on any plan, including Free, and your chats go only to providers that agree not to train on them. Our most capable model, Sel-Sirius, runs on the model ranked #1 on the Artificial Analysis Intelligence Index and is included in Plus from $9.99 a month. ### Which AI models does SelGPT use? SelGPT runs models from OpenAI, Anthropic, DeepSeek and Xiaomi, chosen by our team for quality and price. You pick the one that fits the task, and you can switch in the middle of a conversation. ### Is SelGPT free? Yes. The Free plan includes Sel-Vega with about 50 messages a month and needs no card. Plus starts at $9.99 a month billed yearly and adds all four models. ### How do the usage limits work? Paid plans include unlimited Sel-Vega within fair use, plus a monthly allowance for Sel-Altair, Sel-Rigel and Sel-Sirius. SelGPT shows how much of it you have used as a percentage, and it resets every month. ### Does SelGPT train AI models on my chats? No. Your requests go only to providers that agree not to train on them, and SelGPT never sells your data or shows ads. ### Can I cancel at any time? Yes. You keep your plan until the end of the period you paid for, then move to the Free plan with your chat history intact. ## Links - [Home and plans](https://selgpt.app/) - [Create a free account](https://selgpt.app/register) - [Sign in](https://selgpt.app/login)