Mistral Vibe adds GLM 5.3 and smarter controls for terminal coding agents

Mistral has expanded its terminal coding agent Vibe with Z.ai's hosted open-weights GLM 5.3 model for long-context and agentic coding, reworked smart approve that runs classification on a fast Mistral model regardless of the active session model, and structured subagent routing for splitting specialized work within a session.

• GLM 5.3 from Z.ai is available as a Vibe model preset
• Smart approve classifies actions on a fast Mistral model
• Approval behavior persists when switching modes mid-session
• Custom modes and subagents route specialized work in one session