If AI writes 100% of code at Anthropic, what happens to engineers? Claude code chief explains

A significant change is happening inside Anthropic, the company behind the AI LLM model Claude. According to company, AI now writes almost all of the code used to build its products. This has led many people to ask if AI writes 100 per cent of the code, what are human engineers supposed to do?

Claude is writing the code

At the 2026 Cisco AI summit Anthropic’s Chief Product Officer Mike Kreiger said that AI tools inside the company are generating nearly all of their internal code. This includes large updates, new features, and even documentation. Instead of writing code line by line, engineers now give instructions to AI systems like Claude and review what the AI produces.