In 2026, the gap between a successful AI feature and a failed one isn't the model you choose (GPT-5, Claude 4, or Llama 4). The gap is your Data Supply Chain. If your data is fragmented, delayed, or unstructured: Your AI will hallucinate. Your AI will generate irrelevant outputs. Your AI will burn tokens without generating revenue. Your AI will fail in enterprise environments. If your data is messy, your AI will be hallucinatory at best and a liability at worst. To scale, you