Costs from live prices, checked every 12 hours
What do you want to build?
Get the architecture, the tools and the monthly cost. Build it yourself, or we build it for you.
Or start from a ready-made blueprint
How it works
From idea to a stack you can price and build
- 1
Describe
Tell us what you want to build, in plain words. Or pick a ready-made blueprint.
- 2
Architecture + cost
See every part it needs, the tool for each, and the monthly bill from today's prices.
- 3
Build it
Follow the build steps yourself, or have us build it and hand it over working.
Example
Customer support chatbot
A chat widget on your site that answers from your help center and docs, and hands off to a human by email when it can't help. This is the recommended stack at typical usage; every number comes from today's vendor prices.
- Infrastructure
- $91.67/mo
- $80.40 at half the usage · $132 at double
Same product on the budget stack: $89.20/mo. Fully managed: $291/mo.
Hover or click a part to see what flows between them. Drag to move, use the buttons to zoom.
- Widget & chat API$20/mo
Vercel · Pro
- Knowledge sync$10/mo
Trigger.dev · Hobby
- AI framework$0
Vercel AI SDK
← built with from Widget & chat API
- Chat model$9.60/mo
OpenAI API · gpt-5-mini
← question + articles from Widget & chat API
- Conversation store$8.02/mo
Neon · Launch
← conversations from Widget & chat API
- Cache & rate limits$0.05/mo
Upstash · Pay as You Go
← rate limit, cached answers from Widget & chat API
- Handoff email$15/mo
Postmark · Basic
← handoff to human from Widget & chat API
- LLM observability$29/mo
Langfuse · Core
← traces from Widget & chat API
- Embedding model$0.01/mo
OpenAI API · text-embedding-3-small
← question from Widget & chat API · changed articles from Knowledge sync
- Knowledge index$0
Pinecone · Starter
← search articles from Widget & chat API · re-index from Knowledge sync
Blueprints
Ready-made stacks, priced
Four options each: recommended, budget, open source and fully managed.
Customer support chatbot
A chat widget on your site that answers from your help center and docs, and hands off to a human by email when it can't help.
10 parts · 4 stack options
from $89.20/moBudget option, typical usage
See the stack →PDF Q&A with RAG
Users upload PDFs and ask questions; answers are grounded in the documents with page citations, using retrieval-augmented generation.
10 parts · 4 stack options
from $113/moBudget option, typical usage
See the stack →SaaS backend
The backend most SaaS products need: API, Postgres, sign-in, background jobs, cache, file storage and transactional email.
8 parts · 4 stack options
from $32.43/moBudget option, typical usage
See the stack →AI automation with n8n
n8n workflows with an AI step: triage inbound email and forms, draft replies, enrich leads and route results to Slack or your CRM, with an optional knowledge base.
6 parts · 4 stack options
from $33.77/moOpen source option, typical usage
See the stack →- 186
- AI models with live prices
- 62
- tools and services priced
- 12h
- between price checks
- 4
- ready-made blueprints
Services
Rather not build it yourself?
We design and build AI and SaaS products on the same blueprints, with the costs you see here.
Architecture & cost plan
We design your stack, pick the tools and model the monthly bill at your expected usage, before you write code.
Build your MVP
We build the product on the blueprint, on your own accounts, so you own the code and every subscription.
Cut your AI bill
Already running? We review your stack and usage and show where a cheaper model or tool does the same job.
Tell us what you want to build.
You'll get a reply by email with next steps.
Research
Choosing a single piece?
The data behind every blueprint, open to browse.