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OppenheimerGPT

By OpenAI
AI AssistantFreemium

Use AI Models Side-by-Side with OppenheimerGPT!

Last updated Apr 18, 2026

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What is OppenheimerGPT?

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.

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.

Explore Top AI Use Cases

Tags

macOSAI modelsChatGPTGeminisimultaneous responsesPro versionBasic versionfeatures
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OpenAIai lab

Creating safe AGI that benefits all of humanity

426 Tools4 ModelsFounded 2015San Francisco, CA
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426 Tools·4 Models

AI Models by OpenAI

Large language models from the same organization.

ModelContext WindowPrice (In / Out per M)
GPT-5.4 NanoCurrent400K$0.20 / $1.25
GPT-5.4 MiniCurrent400K$0.75 / $4.50
GPT-5.4 ProCurrent1.1M$30.00 / $180.00
GPT-5.4Current1.1M$2.50 / $15.00

OppenheimerGPT's pricing

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