OppenheimerGPT
By OpenAIAI AssistantPaid
Use AI Models Side-by-Side with OppenheimerGPT!
Last updated Jun 6, 2026
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What is OppenheimerGPT?
OppenheimerGPT's Top Features
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
Use Cases
Who benefits most from this tool.
AI Enthusiasts
Easily compare responses from multiple AI models to get a comprehensive understanding.
Students
Leverage different AI models for research by opening multiple standalone windows for various topics.
Professionals
Enhance productivity by accessing the app quickly from the menubar and using multiple standalone windows.
Developers
Experiment with multiple AI models side-by-side to test which provides better insights.
Writers
Use different AI models to get diverse writing suggestions and improve content quality.
Educators
Use AI models in classrooms to provide varied perspectives on educational content.
Researchers
Utilize multiple AI models to gather detailed data and analyze results from different angles.
Tech Analysts
Compare the performance of different AI models to stay on top of technological advancements.
Marketers
Generate diverse marketing content ideas by leveraging different AI models.
Casual Users
Explore the capabilities of modern AI models by trying out the basic version for free.
Tags
macOSAI modelsChatGPTGeminisimultaneous responsesPro versionBasic versionfeatures
OppenheimerGPT's Pricing
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OpenAIai lab
Creating safe AGI that benefits all of humanity
426 Tools6 ModelsFounded 2015San Francisco, CA
View full profileTools by OpenAI
Other AI tools from the same organization.
AI Models by OpenAI
Large language models from the same organization.
| Model | Context Window | Price (In / Out per M) |
|---|---|---|
| GPT-5.5Current | 1.1M | $5.00 / $30.00 |
| GPT-5.5 ProCurrent | 1.1M | $30.00 / $180.00 |
| GPT-5.4 MiniCurrent | 400K | $0.75 / $4.50 |
| GPT-5.4 NanoCurrent | 400K | $0.20 / $1.25 |
| GPT-5.4Current | 1.1M | $2.50 / $15.00 |
| GPT-5.4 ProCurrent | 1.1M | $30.00 / $180.00 |
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Frequently Asked Questions
Is OppenheimerGPT free?
Basic features are free, but Pro features require a lifetime license for $4.99.
Does the app store login details?
No, the app creates two browser windows side-by-side, following the same sign-in process as a regular browser tab.
Does the app store any prompts that you enter?
No, it operates locally without transmitting any data over the network.
Are more features coming to the app?
Yes, Pro users will receive over-the-air updates.
What is OppenheimerGPT?
OppenheimerGPT is a macOS app that allows you to use AI models side-by-side, at the same time!
Why is the app called OppenheimerGPT?
The name was inspired by the Oppenheimer movie and its parallels to the AI race.
What features do the Pro and Basic versions offer?
The Pro version offers menubar access, unlimited standalone windows, over-the-air updates, and more, while the Basic version is free with limited features.
Can I try different AI models with OppenheimerGPT?
Yes, you can use AI models like ChatGPT and Gemini side-by-side, and future support for models like LLaMa and Claude is planned.
Where can I download OppenheimerGPT?
You can download OppenheimerGPT from the official website.
How often are updates released?
Updates are released over the air for Pro users, ensuring the app is continually improved.