Cline 3.51.0: GPT‑5.2 Codex support

Cline 3.51.0 is now available. This release adds support for OpenAI GPT‑5.2 Codex.

OpenAI GPT‑5.2 Codex (gpt-5.2-codex)

Cline 3.51.0 adds support for OpenAI GPT‑5.2 Codex (gpt-5.2-codex).

OpenAI positions GPT‑5.2 Codex as an agentic coding model optimized for real-world software engineering: long-horizon work, big refactors/migrations, and reliable operation in terminal-heavy workflows. It also includes improvements in long-context understanding and tool-calling reliability, and stronger vision performance for interpreting screenshots and UI surfaces during development.

Codex-style models can be a strong fit for coding workflows where you want:

• fast iteration on code changes
• strong instruction following
• reliable tool usage patterns

How to try GPT‑5.2 Codex

1. Open Cline Settings
2. Select the Cline or OpenAI provider
3. Choose gpt-5.2-codex from the model list

Bug fixes

• Fix the selection of remotely configured providers
• Fix act_mode_respond to prevent consecutive calls
• Fix invalid tool call IDs when switching between model formats

Update today

Cline 3.51.0 is available now through the VS Code, Cursor, and Windsurf marketplaces.

• Download from the VS Code Marketplace
• Join the discussion on Reddit
• Connect with the community on Discord