Aiden Brain runs on two kinds of API keys — both free to obtain and both required to unlock the app's features. Add either or both to get started.
☁️ Cloudflare Workers AI — Free
Add your own free Cloudflare account to unlock text chat, image generation, and the AI 3D Modeler at zero cost. Every Cloudflare account gets its own 10,000 free neurons per day — no credit card required.
gpt-oss-120b, gemma-2b-it-lora, Llama 3.2 3B, llama-guard-3-8b & more
Free image generation (FLUX)
AI 3D Modeler (CAD Zone)
Follow the steps below to connect your Cloudflare account — takes about 2 minutes.
🔑 OpenRouter — Premium Models
Add your own OpenRouter API key for access to Claude, GPT-4o, Gemini Pro, and 100+ other top-tier models. Pay-as-you-go, no subscription.
Claude Sonnet/Opus, GPT-4o, Gemini Pro
Higher quality & longer context
Your own usage & billing control
Takes ~5 minutes to set up
Follow the steps below to get your key.
🏗️ CAD Zone — 3D Models & Architectural Visualization
Generate full 3D models as downloadable files, or create concept images for buildings, interiors, and floor plans — all from a plain-English description. Requires your own Cloudflare API key (see above).
🎨 AI 3D Modeler
Describe any object or assembly — vehicles, furniture, mechanical parts, buildings — and the AI generates a full 3D model using Blender, including correct real-world scale, multi-part assemblies, and an optional photorealistic render. Upload an existing STL/STEP file to edit it in place. Download as STL or STEP.
Best for: vehicles, furniture, mechanical parts, product design — anything where shape and appearance matter as much as dimensions.
🏛️ Architectural Visualization Mode
Describe a building, villa, interior, or site layout and get an AI-generated concept image — exteriors, interior rooms, or top-down floor plans. Use smart prompt chips to enrich your description. Upload a reference image or DXF floor plan to guide the AI. Export results as a CAD Brief (text report) or DXF floor plan file compatible with AutoCAD, ArchiCAD, and FreeCAD.
New: Upload DXF floor plans from any CAD app — Aiden Brain reads the room layout and generates a photorealistic render. Export AI-generated layouts back to DXF for use in AutoCAD.
Best for: villa concepts, interior design, floor plan visualization, architectural briefs, DXF import/export.
Example: villa exterior with garden & parking
Example: living room interior with custom colors & materials
Free daily allowance: CAD generation, chat, and image generation on Cloudflare models all draw from your own Cloudflare account's free daily allocation of 10,000 neurons, resetting at midnight UTC. This is entirely separate from OpenRouter — adding an OpenRouter key unlocks unlimited use of paid models, but your Cloudflare allowance and OpenRouter usage are tracked independently.
No watermarks: generated concept images and 3D model exports (STL/STEP) are clean — free to download, use, and share.
☁️ Step-by-Step Setup — Cloudflare (Free)
1
Create a free Cloudflare account
Cloudflare Workers AI gives every account 10,000 free neurons per day — enough for regular chat, image generation, and CAD use. No credit card required to sign up.
Free forever for the 10,000 neurons/day allowance — only pay if you choose to exceed it.
2
Find your Account ID
Once logged in to the Cloudflare dashboard, your Account ID is shown in the URL bar — it's the long string of letters and numbers right after dash.cloudflare.com/
Copy just that ID string — you'll need it in step 4
3
Create an API Token
In the Cloudflare dashboard, go to My Profile → API Tokens, then click Create Token.
Choose the Workers AI template (or create a custom token with Workers AI: Read/Edit permission)
Click Continue to summary, then Create Token
Copy the token — you won't be able to see it again after closing the page
Important: Never share your API token with anyone. Treat it like a password.
Lost or can't find your token? That's completely normal and easy to fix — go back to My Profile → API Tokens, delete the old one, and create a fresh one following the same steps above. No harm done, just paste the new token into Aiden Brain afterward.
4
Add your Cloudflare key to Aiden Brain
Sign in to Aiden Brain
Click your avatar/initials in the top-right corner
Click API keys (OR, CF, Groq & HF)
Scroll to the Cloudflare Workers AI key section
Paste your Account ID and API Token, then click Save Cloudflare key
✓ Done! You can now use free Cloudflare models in chat, image generation, and the CAD Zone.
⚡ Step-by-Step Setup — Groq (Free, Fast)
Groq is optional but recommended — 14,400 free requests/day per account, extremely fast responses. Used as fallback when no OpenRouter key is set.
1
Create a free Groq account
Go to console.groq.com and sign up for free. No credit card required.
Once logged in, go to API Keys in the left sidebar → click Create API Key → give it a name (e.g. "Aiden Brain") → copy the key starting with gsk_
3
Add your Groq key to Aiden Brain
Click your avatar (top-right) → API keys (OR, CF, Groq & HF)
Scroll to the Groq API key section
Paste your gsk_... key and click Save Groq key
✓ Done! Groq will now be used as fallback when no OpenRouter key is set — 14,400 free requests/day, powered by Llama 3.3 70B.
🎥 Step-by-Step Setup — Hugging Face (Free, Video Generation)
Hugging Face is only needed for video generation (text-to-video and image-to-video in chat) — every user brings their own free account, so your quota is separate from everyone else's rather than a shared platform limit.
Set your expectations first: Hugging Face's free tier for this is genuinely small — around $0.10/month in credits, enough for roughly 1–2 short video clips per month, since video generation is far more compute-intensive than text or images. Their PRO plan ($9/mo) gives 20x more (about $2/month in credits) if you plan to use this regularly.
1
Create a free Hugging Face account
Go to huggingface.co and sign up for free. No credit card required.
Go to huggingface.co/settings/tokens → click Create new token → select the Fine-grained token type (not "Read" or "Write").
Scroll to the Inference section and check "Make calls to Inference Providers"
Click Create token, then copy it — it starts with hf_
Important: the "Make calls to Inference Providers" permission is easy to miss and is required for video generation to work — a token without it will fail with a 403 error. This is different from "Make calls to your Inference Endpoints," which is a separate, unrelated permission.
3
Add your Hugging Face token to Aiden Brain
Sign in to Aiden Brain
Click your avatar/initials in the top-right corner
Click API keys (OR, CF, Groq & HF)
Scroll to the Hugging Face token section
Paste your hf_... token and click Save Hugging Face token
✓ Done! You can now generate short video clips in chat by describing what you want (e.g. "generate a video of a modern villa with a pool at sunset"), or attach a photo and ask for it to be animated.
Step-by-Step Setup (Premium — Optional)
1
Create your Aiden Brain account
OpenRouter gives you access to 100+ AI models (Claude, GPT-4o, Gemini, Llama and more) with a single API key.
Free to sign up — no subscription required. You only pay for what you use.
2
Add credits to your account
Your API key works on a simple pay-as-you-go model — no monthly subscription, no commitment. Add $5, use it whenever you need, top up when it runs low.
Enter your token and LinkedIn Person ID (URN) → click Save connection
Step 2 — Configure: Set your post topic/prompt, schedule, language, and AI model
Optionally add a Source URL — AI reads that page and writes a post about it
Optionally add Telegram Bot + Chat ID for notifications when posts go live
Click Save all settings — saves your preferences only, nothing is posted yet
Step 3 — Post manually: Click Generate preview → review the draft → click Post to LinkedIn now
Auto-posting: When enabled, posts go out automatically on schedule (Mon/Wed/Fri 9AM UTC). You get a Telegram notification each time.
To change content anytime — update your prompt and click Save all settings. The next scheduled auto-post will use the new prompt automatically — no need to generate a preview again.
✓ Token expires every 60 days — renew at linkedin.com/developers
Available AI Models
Select any model from the dropdown in the top bar. Models are grouped by provider with Free ✅ and Paid 💳 labels. Use the ✅ Free toggle to show only free models. Free models cost nothing — paid models use your OpenRouter credits.
Loading latest models from OpenRouter...
Which Model Should I Use?
A quick reference to find the best model for your needs.
Use Case
Models
Free options?
💼Business & Work
Claude SonnetGPT-4oGemini ProGrok
Llama 70B (limited)
🎓Education & Research
Claude SonnetGemini ProDeepSeek R1Llama 4 Maverick
Llama 4 Maverick ✅
💻Coding & Development
Claude SonnetDeepSeek R1GPT-4oLlama 4 Scout
Llama 4 Scout ✅
🏥Health & Medical
GPT-4oClaude SonnetGemini ProNemotron
Llama 70B (limited)
💰Finance & Investing
GrokGPT-4oClaude SonnetGemini Pro
DeepSeek V3 (limited)
🌍Arabic Language Support
GPT-4oGemini ProClaude SonnetLlama 4 Maverick
Llama 4 Maverick ✅
🎨Creative Writing
Claude SonnetGPT-4oGrokLlama 4 Maverick
Llama 4 Maverick ✅
🧠Deep Reasoning & Analysis
DeepSeek R1Claude SonnetGPT-4oGemini Pro
DeepSeek R1 (limited)
⚡Fast & Free Everyday Use
Llama 4 ScoutLlama 8BLlama 4 MaverickGemini Flash
All free ✅
🖼️Image Understanding (Vision)
GPT-4oGemini ProClaude SonnetLlama 4 Maverick
Llama 4 Maverick ✅
File & Media Support by Model
Aiden Brain has built-in parsers for most file types — the content is extracted and sent as text to any model. Images and medical scans require the model to have native vision support.
💡 Multiple files on free models: Free models (marked FREE) have daily rate limits. Sending multiple files at once may be slower or hit limits — use a paid model for batch file analysis.
💳 Image generation uses paid API credits: Reading and analyzing files (PDF, DOCX, images, DICOM, etc.) works on free models at no cost. However, generating images uses the Gemini image model which charges your OpenRouter API key. You are always in control of your own key and spending — Aiden Brain never charges you directly.
Loading live model data from OpenRouter...
Model
Tier
Context
Vision
$/1M tokens
Fetching models...
💡 Tip: The app automatically switches to a backup model if your selected model is busy or unavailable — so you always get a response.
Frequently Asked Questions
Will I get charged if I don't use the app?
No. OpenRouter only charges when AI requests are made. If you don't send messages, you don't pay anything.
Can I use the same API key on multiple devices?
Yes. Your key is stored in your Aiden Brain account and works from any browser or device you sign in from.
What happens when my credits run out?
OpenRouter will stop processing requests. You'll see an error message in the chat. Simply add more credits at openrouter.ai/credits.
Is my data safe?
Your API key is stored securely and never exposed. Chat history is private to your account. See our Terms of Use for full details.
📐 MEP Engineering Engine
Once you have added your API keys, you can access the MEP Engine —
a full engineering package generator that produces SBC-compliant drawings,
calculations and documentation from a single building description.
E-01 Electrical, P-01 Plumbing, M-01 HVAC, A-01 Architectural in one ZIP package.
59 cities · 31 countries — ASHRAE 169-2021 climate data built in.
Describe your building in Arabic or English and AI extracts all parameters automatically.
⌚ Watch Engine — Mechanical Movement Documentation
Produces factory-style assembly reference documents for a mechanical watch
movement: an exploded view with numbered callouts, a matching assembled
view, and a print-ready PDF listing every component with its material and
identification colour. Built for service manuals and assembly-line
reference, not marketing renders.
The in-browser 3D preview — orbit to any angle, then render the document from that view.
🔩 Exploded View
42 components
Parts separated along the assembly axis, each with a numbered callout and leader line
📄 PDF Reference
A4, print-ready
Exploded and assembled figures plus a parts legend with colour swatches, quantities and materials
🔍 Interactive 3D
Orbit & zoom
Inspect the real geometry in the browser, frame any angle, then render the document from exactly that view
🎨 Finishes & Jewels
5 metals · 3 gems
Steel, yellow gold, rose gold, blued and gunmetal; ruby, sapphire or emerald jewelling
⚙️ Subsystem Views
Focus mode
Document the complete movement, or isolate the gear train, escapement or base plate
🌍 Trilingual Output
EN · TR · AR
Part names, headings and the full legend translated, with right-to-left layout for Arabic
No API key needed — the Watch Engine renders on our servers
and uses no AI model quota, so it works even without a Cloudflare or
OpenRouter key. Each document takes about five minutes to render; you can
leave the page and come back to it.
3D watch movement model by Vipron, licensed under
CC BY 4.0.
🏙️ Property Desk — Real Estate Marketplace
A full real-estate marketplace built into Aiden Brain — Istanbul-focused and
growing internationally. Browse verified listings, get alerted to new
opportunities, or list your own property as a verified partner. No account
required to browse; partner tools require sign-in.
🏙️ Verified Listings
Partner-checked
Every partner's license is checked against the Turkish TTBS registry before listings go live
🗺️ Interactive Map
Custom night theme
Browse by location with a Bosphorus-styled map, filter by property type, cluster view for dense areas
✉️ Buyer Enquiries
Privacy-first
Contact partners directly through the platform — your details are never shown publicly
👁️ Market Watchlist
Partner tool
Track properties of interest and get notified of new matches — no scraping, fully manual/opt-in
🌍 Beyond Istanbul
Growing
Started Istanbul-only, now expanding to international listings as the network grows
🌐 Trilingual
TR · EN · AR
Buyer-facing pages support Turkish, English, and Arabic (with full RTL layout)
For partners: signup is instant, but your license number is verified
against the government registry before your listings go public — usually within one business day.
