How Much Does It Cost to Build?
Line-by-line cost breakdowns for building different AI backend types from scratch — developer hours, dollar ranges at $100–150/hr senior developer rates, and what FastAPI AI Kit covers for $69.
Cost to Build an AI Chatbot Backend
Detailed cost breakdown for building an AI chatbot backend — developer hours, LLM integration, auth, streaming, and billing. DIY vs FastAPI AI Kit comparison.
Cost to Build a RAG Document Search API
Cost breakdown for building a RAG document search API — document ingestion, vector stores, embedding, LLM answers, auth, and billing. DIY vs FastAPI AI Kit.
Cost to Build an AI SaaS Backend
Full cost breakdown for building an AI SaaS backend — auth, multi-tenancy, LLM integration, billing, rate limiting, and deployment. DIY vs FastAPI AI Kit.
Cost to Build an LLM API Gateway
Cost breakdown for building an LLM API gateway — multi-provider routing, response caching, token metering, rate limiting, and auth. DIY vs FastAPI AI Kit.
Cost to Build an AI Customer Support Backend
Cost breakdown for building an AI customer support backend — LLM integration, conversation history, escalation logic, knowledge base, and billing.
Cost to Build a Document Processing API
Cost breakdown for building a document processing API — file ingestion, text extraction, LLM analysis, async jobs, storage, and billing. DIY vs FastAPI AI Kit.
Cost to Build an AI Voice Agent Backend
Cost breakdown for building an AI voice agent backend — speech-to-text, LLM processing, text-to-speech, real-time streaming, and usage billing.
Cost to Build a Multi-Tenant AI API
Cost breakdown for building a multi-tenant AI API — per-tenant auth, isolated data, usage quotas, LLM integration, and per-tenant billing. DIY vs FastAPI AI Kit.