coding-agent

Mistral AI released Vibe 2.0, a terminal-native coding agent powered by Devstral 2, adding custom subagents, multi-choice clarifications, and slash-command skills. Devstral 2 API pricing is now $0.40/M input tokens and $2.00/M output tokens, with a smaller variant at $0.10/$0.30 per million tokens.

OpenAI has implemented a custom sandbox for its Codex coding agent on Windows after determining that existing Windows isolation tools—AppContainer, Windows Sandbox, and Mandatory Integrity Control—could not adequately balance safety and functionality. The solution uses synthetic SIDs and write-restricted tokens to constrain file writes and network access without requiring administrator privileges.

OpenAI developed a custom sandbox implementation for its Codex coding agent on Windows after existing tools like AppContainer and Windows Sandbox failed to meet requirements. The solution uses synthetic SIDs and write-restricted tokens to constrain file writes and network access without requiring administrator privileges.

GitHub has expanded its Copilot coding agent with five major features: a model picker for agent selection, self-review functionality, built-in security scanning, custom agent creation, and CLI handoff integration.

GitHub has added a model picker feature to Copilot's autonomous coding agent for Business and Enterprise tier users. The feature allows teams to select which AI model powers the asynchronous background agent that handles delegated development tasks.