OppenheimerGPT is a macOS application designed for using AI models like ChatGPT and Gemini side-by-side, enabling users to input prompts once and receive responses from both models simultaneously. The app offers a Pro version for $4.99 which includes features such as menubar access, unlimited standalone windows, and over-the-air updates, while the Basic version remains free but with limited capabilities.
Key capabilities that make OppenheimerGPT stand out.
Use multiple AI models like ChatGPT and Gemini side-by-side
Input prompts once to mirror across AI models
Quick access from the menubar
Launch multiple standalone windows for separate topics
Pro version includes over-the-air updates and bug fixes
Future support for additional AI models like LLaMa and Claude
The organization behind OppenheimerGPT.
Creating safe AGI that benefits all of humanity
Large language models from the same organization.
| Model | Context Window | Price (In / Out per M) |
|---|---|---|
| GPT-5.4Current | 1.1M | $2.50 / $15.00 |
| GPT-5.3 CodexCurrent | 400K | $1.75 / $14.00 |
| o3Current | 200K | $10.00 / $40.00 |
| GPT-4o miniCurrent | 128K | $0.15 / $0.60 |
| GPT-4oCurrent | 128K | $2.50 / $10.00 |
| GPT-5 | 400K | $1.25 / $10.00 |
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Who benefits most from this tool.
Easily compare responses from multiple AI models to get a comprehensive understanding.
Leverage different AI models for research by opening multiple standalone windows for various topics.
Enhance productivity by accessing the app quickly from the menubar and using multiple standalone windows.
Experiment with multiple AI models side-by-side to test which provides better insights.
Use different AI models to get diverse writing suggestions and improve content quality.
Use AI models in classrooms to provide varied perspectives on educational content.
Utilize multiple AI models to gather detailed data and analyze results from different angles.
Compare the performance of different AI models to stay on top of technological advancements.
Generate diverse marketing content ideas by leveraging different AI models.
Explore the capabilities of modern AI models by trying out the basic version for free.