Premium AI Models,
One Application
Access the World's Leading AI Models in One Place
Claude Opus 4.6Claude Sonnet 4.6Claude Haiku 4.5
GPT-5.4GPT-5.4 MiniGPT-5.4 Nanoo4 Minio3
Gemini 3.1 ProGemini 3 ProGemini 3 FlashGemini 2.5 ProGemini 2.5 FlashGemini 2.5 Flash Lite
Grok 4.1 Fast
DeepSeek V3.2
CodestralMistral SmallEverything You Need for AI-Powered Productivity
Powerful features designed to transform how you work, learn, and create with AI
Latest Premium AI Models
Access cutting-edge AI models from leading providers including OpenAI, Anthropic, and Google. Switch between different models seamlessly, all within one unified application.
Most Affordable Pricing
No subscriptions or monthly commitments. Pay only for what you use with our transparent credit-based system — the most affordable way to access premium AI models.
No Rate Limits
Use AI as much as you need without artificial restrictions. No daily or hourly limits holding you back. As long as you have credits, you can keep working.
Chrome Extension
Seamlessly integrated Chrome extension for instant AI access while browsing. Analyze, summarize, and enhance text directly in your browser for research and content creation.
Instant Text Selection
Select any text on any website and instantly chat with AI about it. No copying and pasting required — just highlight text and start conversing with your AI assistant.
Context-Aware Conversations
AI that remembers your conversation context and selected text. Get more accurate and relevant responses based on the full context of your discussion and interactions.
Built for Your Privacy & Peace of Mind
We know you're trusting us with your personal conversations and work.
Here's exactly how we keep your information safe and give you full control.
No Rate Limits
Unlimited UsageUnlike other AI services that slow you down with rate limits, use Definio as much as you want. No "you've reached your limit" messages interrupting your workflow.
Your Chats Stay Private
Zero Data CollectionWe don't read, store, or analyze your conversations. Your personal chats, work documents, and private thoughts remain completely private to you.
Delete Anytime
True DeleteWant to clear your history? One click and it's gone forever. No hidden backups, no "deleted but recoverable" — when you delete, it's actually deleted.
Safe Browser Extension
Google VerifiedGoogle-reviewed and verified safe. Minimal permissions, no access to your passwords or personal data. Works only when you want it to — never in the background.
Secure Connection
EncryptedAll your conversations are encrypted during transmission. Same security standards as your online banking — your data is protected while traveling to AI models.
No Sketchy Behavior
TransparentNo background processes, no tracking, no selling your data. Just a clean tool that does what it says — help you chat with AI models safely.
Privacy-First Browser Extension
Minimal Permissions
Only asks for permissions it actually needs — no access to your browsing history or personal files.
No Background Activity
Extension only works when you actively use it — no sneaky background processes or data collection.
Works Offline for Setup
Basic extension functions work without internet — only connects when you actually chat with AI.
What Our Users Say
Discover how Definio is transforming the way people work with AI
“Definio has revolutionized my research workflow. I can directly select text from research papers and instantly analyze them without switching between apps. The sidepanel is so convenient and non-intrusive - I get AI insights right where I need them.”
“As a developer, I love having all premium AI models at my fingertips. The sidepanel opens seamlessly without disrupting my workflow. I can select code snippets from documentation and get instant analysis - no more juggling multiple tabs.”
“The ability to select any text on websites and instantly paraphrase, analyze, or improve it is incredible. No more copying to separate apps - everything happens right in the sidepanel. Definio has streamlined my entire writing process.”
“Studying became so much easier with Definio. I can select complex passages from academic articles and get instant explanations without leaving the page. The non-intrusive sidepanel keeps me focused while providing AI assistance exactly when I need it.”
“I can select competitor content, market reports, or any text online and instantly analyze trends or create compelling copy. Having all premium AI models in one convenient sidepanel with simple pay-as-you-go pricing saves me time and money.”
“The sidepanel is brilliantly designed - it's there when I need it but never gets in the way. I can select client documents or research directly from websites and get strategic insights instantly. Definio has become indispensable for my consulting work.”
Ready to get started?
Create a free account and start chatting with the world's best AI models.