Goldman Sachs has restricted the use of AI coding tools, including Anthropic's Claude Code and Microsoft's GitHub, to its engineers, cutting off access to traders and bankers who previously used them to track client flows and build market models. The move comes after a review of productivity and risk concerns, and just weeks before Goldman is set to take Anthropic public as a lead underwriter. While most traders and bankers can no longer use these tools, certain staff, such as "strats" who work across trading, quantitative research, and software engineering, will still have access, highlighting the bank's efforts to balance innovation with risk management.