Cline is an open-source AI coding assistant for VS Code that features dual Plan/Act modes, terminal execution capabilities, and the Model Context Protocol (MCP) for custom tool creation. It serves as a fully collaborative AI partner for developers.

How is Cline different from GitHub Copilot?

Cline is open-source and offers unique features like Plan/Act modes for structured development, terminal command execution, browser automation for testing, and the Model Context Protocol (MCP) for creating custom development tools.

What programming languages does Cline support?

Cline supports all major programming languages and frameworks through its AI models and can execute terminal commands, edit files, and automate browser testing across different technology stacks.

Cline v3.41 adds GPT-5.2, Devstral 2, & ergonomic model switching

Written by

Nick Baumann

Published on

December 11, 2025

Cline v3.41 adds GPT-5.2, Devstral 2, & ergonomic model switching

GPT-5.2

OpenAI's latest frontier model is now in Cline. GPT-5.2 Thinking scores 80% on SWE-bench Verified and 55.6% on SWE-Bench Pro, with significant improvements in tool calling, long-context reasoning, and vision.

Enable "thinking" in Cline to use GPT-5.2 Thinking for complex tasks. The model handles multi-step agentic workflows with fewer breakdowns between steps.

https://openai.com/index/introducing-gpt-5-2/

Devstral 2

The stealth model "Microwave" is now revealed: Devstral 2 from Mistral AI. It scores 72.2% on SWE-bench Verified while being up to 7x more cost-efficient than Claude Sonnet. Free during launch.

Select mistralai/devstral-2512 from the Cline provider to try it. Read the full deep dive.

Faster model switching

The model picker by the chat input is now faster and more ergonomic.

Click the model name to see only providers you've configured (i.e. added API keys to); not the full list. Search across all available models when you need something specific. Toggle Plan/Act mode with a sparkle icon, and enable thinking with one click.

If you want to adjust thinking budget or add more providers, those settings stay in the main settings panel.

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Codex Responses API

gpt-5.1-codex and gpt-5.1-codex-max now support OpenAI's Responses API. This newer API handles conversation state server-side and preserves reasoning across tool calls, making multi-step agentic workflows smoother. Requires Native Tool Calling enabled in settings.

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More in this release

Amazon Nova 2 Lite is now available. DeepSeek 3.2 has been added to the native tool calling allow list. The welcome screen has UI enhancements.

Fixes

Initial checkpoint commits are now non-blocking, improving responsiveness in large repositories
Gemini Vertex models no longer error when thinking parameters are not supported
File permissions for secrets.json are now less restrictive
Ollama streaming requests now abort correctly when a task is cancelled

For the full changes, view the changelog here.

Getting started

Update Cline to 3.41.0. Share your experience on Reddit or Discord.

Cline v3.41 adds GPT-5.2, Devstral 2, & ergonomic model switching

GPT-5.2

Devstral 2

Faster model switching

Codex Responses API

More in this release

Fixes

Getting started

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