The model selector in Chatex lets you choose the best available AI model family for each task. You can switch between supported models for writing, coding, analysis, research, and everyday chat.
How to use the model selector
Open the chat interface.
Click the dropdown next to the current model name.
Select the model family you want to use.
Model availability depends on whether you are using free access or a paid subscription:
Free access: entry-level chat access while your free message remains. Your first free chat message can include supported file attachments.
Paid subscriptions: access to supported premium models and features. Paid options are a 7-day paid trial that auto-converts to monthly unless canceled, or a quarterly subscription that starts immediately.
Available model families in Chatex
GPT
Useful for general assistance, writing, coding, and multimodal tasks.
Claude
Strong for nuanced writing, summarization, and thoughtful conversation.
Gemini
Helpful for multimodal workflows, research, and long-context tasks.
DeepSeek
Well suited for logic, math, and coding-heavy prompts.
Grok
Designed for fast, conversational responses.
SuperBot
Chatex's in-house assistant for quick, supportive responses across everyday tasks.
File and media upload support
Selected models, including GPT, Gemini, and SuperBot, support:
File uploads
Image uploads
Audio input
Video understanding
Unlimited uploads and the dedicated PDF Chat tool remain part of Pro.
Chatex is an independent AI aggregator and is not affiliated with or endorsed by the providers behind those model families.