Refine your prompts with on-device AI before sending them to ChatGPT, Claude, Gemini, Grok, or Microsoft Copilot.
Users
44
+2 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
5
0 in 30 days
Store rank
#114K
#95K among extensions
Version
1.1.0
updated 16 Jun 2026
Users
monthly, 11 months
Latest, 20 Oct 2026:44 usersMove the mouse over the chart for any month
Ratings count
monthly, 11 months
Latest, 20 Oct 2026:5 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Chat Copilot
How often have you had to rewrite your prompt because ChatGPT assumed you meant something else? The frustration of this back and forth increases the barrier to wider adoption of AI for everyday activities.
Chat Copilot was built for that specific usecase in mind. The extension serves as your copilot for LLMs. It allows you to improve the prompts you write to ChatGPT, Gemini, Claude, Microsoft Copilot and Grok!
Chat Copilot improves your prompt based on the LLM you're using. This enables you to tailor your prompt to the LLM you're using. It also gives you a quality score for your prompts based on 5 metrics: clarity, specificity, structure, completeness and actionability.
The extension uses only local models and keeps all analytics local so you can see your improvement over time. Please share any feedback and suggestions for improvement and new features with contact@lighty.ai.
Growth
Window
Users
Change
Ratings
Rating
7 days
+2
+4.8%
0
0.00
30 days
+2
+4.8%
0
0.00
6 months
+22
+100.0%
+1
0.00
Chrome Web Store search rankings
Where Chat Copilot appears when people search the store, with the 30 day change