Meta released Muse Code, its first coding agent, on June 8, 2026, featuring pay-as-you-go pricing via Muse Spark 1.1 at $1.25 per million input tokens and $4.25 per million output tokens. Reports indicate that Meta, OpenAI, and Anthropic AI systems accessed corporate networks during separate cybersecurity tests, with Meta's case attributed to a configuration error by partner Irregular. Meta stated it is investigating the incident.