Claude Fable 5·GPT-5.5·Grok 4·Gemini 3.5+300

Every model.
One subscription.

Stop paying for Claude, ChatGPT and Gemini separately. Get them all here — with web search, a legal workspace with official court data, 370+ expert agents, vision, PDF, voice and image generation.

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Claude Fable 5Claude Opus 4.8GPT-5.5 ProGemini 3.5 FlashGrok 4.3Kimi K2.6DeepSeek V4Qwen3.7 Max
+300
models available
+370
skills & agents
10
connected tools
1
subscription for everything
It's that simple

How it works

From zero to your first result in under a minute.

1
Step 1

Create your free account

No card. In seconds you're chatting with the best AIs.

2
Step 2

Pick a model or activate an agent

From the fastest to the smartest — there's a right model for every task.

3
Step 3

Chat, attach, generate images and talk

All in one place, real-time answers, automatic history.

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Why Brains

Not just another AI chat

Features you won't find together anywhere else.

Auto Mode

The AI picks the best model for each question — code, writing or reasoning. You just ask.

Compare side by side

The same question across several models at once. See instantly which one answers best.

Memory that knows you

The AI remembers who you are between conversations: your profession, style and preferences.

Conversations everywhere

History synced between phone and computer — and you can install it as an app. Pick up where you left off.

Full legal workspace

A chat dedicated to law with guided shortcuts and case lookups in Brazil's official court database (CNJ).

Connected to the real world

Web search with cited sources + 10 tools: court cases, company records, financial indices, official gazettes, weather and more.

Legal workspaceNEW

A real legal assistant

A chat dedicated to law, with guided forms and official data — not just a fancy prompt.

  • Guided shortcuts: complaint drafts, contracts, legal opinions, appeals, deadline math and more
  • Case lookups in Brazil's official court database (CNJ/DataJud), right in the conversation
  • Attach case files and PDF documents for analysis
  • Download the result as Word or PDF, ready to edit
Explore the legal workspace
Complaint draftContractLegal opinionAppealDeadlinesCase summaryDocument reviewCase lawCase lookup
Models

The best models in the world

From the global AI leaders. Switch models in the same chat, no extra account needed.

Claude Fable 5
Anthropic
Anthropic's most advanced
Pro Max
Claude Opus 4.8
Anthropic
Elite reasoning, 1M tokens
Pro Max
GPT-5.5 Pro
OpenAI
1 million tokens of context
Pro Max
Gemini 3.5 Flash
Google
Ultra-fast, 1M context
Pro Max
Grok 4.3
xAI
Real-time data
Pro Max
DeepSeek V4 Pro
DeepSeek
Elite open-source
Pro Max
Kimi K2.6
Moonshot
262K context, great at code
Pro
Qwen3.7 Max
Alibaba
1M context, multilingual
Pro
Mistral Medium 3.5
Mistral
European excellence, precise
Pro
MiniMax M3
MiniMax
Fully multimodal
Pro
Gemini 3.1 Flash Lite
Google
1M context, free
Free
Nemotron 3 Ultra
NVIDIA
1M context, free
Free
Llama 3.3 70B
Meta
Ultra-fast via Groq
Free
DeepSeek V4 Flash
DeepSeek
Fast reasoning
Free
+286 other models
all providers
Specialist agents

370+ specialists ready to work

Activate by command on Pro, or let the AI detect and choose automatically on Pro Max.

Lawyer

Law

Analyzes contracts, spots unfair clauses and drafts legal documents with precise technical language.

ContractsFilingsCases

Senior Dev

Dev

Generates, reviews and explains code in any language. Finds bugs, suggests refactors and proposes architecture.

Code reviewDebugArchitecture

Data Analyst

Data

Reads spreadsheets and CSVs, uncovers hidden trends and builds executive reports in seconds.

ExcelSQLVisualization

Business Consultant

Business

Runs SWOT analysis, builds business plans, assesses pricing and spots market opportunities.

SWOTBusiness planMarket

Copywriter

Marketing

Writes copy that converts: headlines, emails, ads, posts and scripts in the right brand voice.

HeadlinesEmailAds

Personal Tutor

Study

Explains any concept from basics to advanced, creates exercises, grades answers and adapts the pace.

ExercisesReviewExams

Data Architect

Dev

Models schemas, writes optimized queries, proposes indexes and reviews migrations for any database.

SQLSchemaPerformance

Content Writer

Content

Produces articles, newsletters, video scripts and SEO-friendly captions with consistent tone.

SEOBlogNewsletter

Automation Specialist

Automation

Builds Python scripts, advanced formulas and workflows to eliminate repetitive tasks.

PythonZapierScripts

Automatic activation available on the Pro Max plan.

See all agents

Everything an AI chat needs

Modern features, in a clean and fast interface.

All the models

Claude, GPT-5.5, Gemini, Grok, Kimi, DeepSeek, Llama and hundreds more. Switch within the same chat.

370+ skills & agents

Ready-made abilities that turn the AI into a specialist in your field — in English, Portuguese and Spanish.

Vision & PDF

Send images and PDFs (even scanned, with OCR). The AI reads, describes and analyzes.

Image generation

Describe it and get high-quality images generated right in the chat.

Two-way voice

Talk with the microphone, listen to the answers. Natural conversation with AI.

Private & secure

No prompt tracking. Export or delete your data anytime, with one click.

Connected to the real world

Web search with sources + 10 tools: court cases, company records, financial indices, official gazettes, weather…

Export to Word & PDF

Download any answer as .docx or .pdf, ready to deliver.

Share & install

Public links to share conversations, and install it as an app on your phone and computer.

Frequently asked questions

Which models are available?

Over 300, from the world's leading labs — Anthropic, OpenAI, Google, Meta, Mistral, xAI, Moonshot, DeepSeek and others. Free gives you fast, efficient models. Pro adds the top mid-tier ones. Pro Max unlocks Claude Fable 5, Claude Opus 4.8, GPT-5.5 and Grok 4.3 — the most powerful on the market.

What are skills and agents?

Ready-made abilities that turn the AI into a specialist: lawyer, senior dev, data analyst, copywriter, tutor… 370+ in the library, working in English, Portuguese and Spanish. On Pro you trigger them by command; on Pro Max the AI detects the context and activates them itself.

Can the AI access the internet and real data?

Yes. Turn on web search for up-to-date answers with cited sources, and the connected tools for official data: court cases (CNJ/DataJud), company records, postal codes, financial indices, official gazettes, weather and more — available on every plan.

Is it useful for legal work?

It's one of our main focuses. The legal workspace has a dedicated chat, guided shortcuts (complaints, contracts, opinions, appeals, deadlines), case lookups in Brazil's official CNJ database and PDF case-file uploads. Results download as Word or PDF.

How does premium usage work?

More powerful models consume more of your premium usage; free models consume none. Premium usage renews every 5 hours with a weekly cap. When the window resets, you can still use the free models or buy a one-time top-up.

What are one-time top-ups?

One-off purchases (no subscription) that stay in your account and extend your premium usage when the 5-hour window runs out. Available on Pro and Pro Max. They never expire.

Do I need a card to start?

No. Free doesn't ask for a card. You only subscribe when you want more models and more usage.

Can I cancel anytime?

Yes. Monthly subscription, cancelled from the billing portal in one click. No lock-in.

Claude Fable 5, GPT-5.5, Grok 4 and 300+ models waiting for you

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