If you use ChatGPT, Claude, or Gemini for anything beyond casual conversation, you have probably noticed something frustrating: every single time you open a new chat, the extended thinking toggle resets to off. That means the AI defaults to its fastest, shallowest mode of response — not its best one. For professionals, developers, founders, and power AI users who depend on accurate, well-reasoned outputs, this silent reset is a daily productivity drain.
ChatGPT's think mode (sometimes called ChatGPT extended thinking or reasoning mode) is the feature that tells the model to slow down and actually reason through your problem before responding. When enabled, ChatGPT produces significantly more accurate answers for coding, math, analysis, strategy, and multi-step reasoning tasks. The same applies to Claude extended thinking on Anthropic's platform and Gemini deep think on Google's — both platforms offer their own version of deeper reasoning, and both reset the toggle on every new conversation.
The problem is not that these features exist. The problem is that you have to manually enable think mode in ChatGPT — and Claude, and Gemini — over and over again, dozens of times a day. Every new chat. Every page refresh. Every session. It is a small friction that adds up to a massive annoyance, and it means you are often getting subpar AI responses without even realizing the thinking toggle was off.
ThinkMode+ is the think mode extension that eliminates this problem entirely. It is a lightweight Chrome and Edge AI thinking mode browser extension that runs silently in the background across all three major AI platforms. The moment you open a new chat on ChatGPT, Claude, or Gemini, ThinkMode+ detects the page, finds the thinking toggle, and switches it on — automatically, instantly, and without touching your prompts.
Unlike other AI extensions for Chrome that inject prompts or modify your workflow, ThinkMode+ does exactly one thing perfectly: it keeps the always-on thinking mode active. It does not read your conversations. It does not change what you type. It does not send any data anywhere. It simply flips a switch that the platform itself provides — the same switch you would click manually, except now you never have to.
For anyone searching for a way to auto enable think mode or force think mode ChatGPT to stay on permanently, ThinkMode+ is the direct solution. It works as a ChatGPT thinking mode extension that also covers Claude and Gemini, making it the only extended thinking Chrome extension built for thinking mode for all AI platforms in one install.
Whether you are a developer debugging code, a founder drafting strategy documents, a researcher analyzing complex data, or simply a power user who wants every AI conversation to start with the model's deepest reasoning — ThinkMode+ ensures that happens, every single time. Install it once, configure your platforms, and never think about the thinking toggle again. It is one of the best ChatGPT extensions for anyone who values quality over speed in their AI workflows, and it is also one of the most efficient ChatGPT productivity extensions available — because the best productivity tool is the one that removes a friction you should never have had in the first place.