Meta researchers taught an 8B AI model to match Claude Opus 4.5 — without the frontier price tag

Consider an AI agent tasked with a complex enterprise workflow like migrating massive batches of customer records from a legacy CRM to a cloud database. The agent cannot rely solely on its internal context window for a job spanning hours and depends on the runtime layer, aka the harness . This harness provides execution feedback, like server logs, to help the agent maintain an accurate understanding of dynamic API connections.