Integrazione LLM per Startup: Build vs Buy vs Partner

Three main options: 1) Use API providers (OpenAI, Anthropic) - fastest, easiest, ongoing costs. 2) Self-host open-source models (Llama, Mistral) - more control, higher upfront cost. 3) Build custom fine-tuned models - most effort, best for unique data.

It depends on the route. API integration is the cheapest to start: development effort plus usage-based API costs that grow with traffic. Self-hosting adds setup and ongoing infrastructure. Custom models add training and data work on top. Price each route against your own expected volume before choosing.

Use APIs when: speed matters, usage is moderate, you lack ML expertise. Self-host when: you have sensitive data, need cost control at scale, require custom model behavior, or have specific compliance requirements.

Not for basic API integration - a skilled full-stack developer can handle it. You need ML expertise for: fine-tuning models, building RAG systems, optimizing prompts at scale, or self-hosting.

Key risks: 1) Hallucinations in critical applications, 2) Unpredictable API costs as usage scales, 3) Vendor lock-in, 4) Data privacy concerns, 5) Performance inconsistency. Mitigation requires careful architecture and testing.