AI Architectures Remain Surprisingly Simple—Even in Production

Bar charts showing the AI customization approaches and workflow/agent usage among enterprises and startups, indicating that simple methods like prompt design, RAG, and fixed sequence workflows remain the most widely adopted.
| Label | Value shown on the chart |
|---|---|
| Prompt design (Enterprises) | 38% |
| Prompt design (Startups) | 31% |
| RAG (vector search) (Enterprises) | 34% |
| RAG (vector search) (Startups) | 35% |
| Fine-tuning (Enterprises) | 12% |
| Fine-tuning (Startups) | 6% |
| Fixed sequence workflow (Enterprises) | 39% |
| Fixed sequence workflow (Startups) | 27% |
| Routing-based workflow (Enterprises) | 26% |
| Routing-based workflow (Startups) | 27% |
| Single-shot workflow (Enterprises) | 18% |
| Single-shot workflow (Startups) | 19% |
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