# GPT-5 vs Grok-4 Who Wins the Simulation Showdown? Source: https://www.youtube.com/watch?v=HCUfhwePIFo Recap page: https://rapidrecap.app/video/HCUfhwePIFo Generated: 2025-08-10T01:02:39.731+00:00 --- ## Quick Overview GPT-5 Pro demonstrates superior performance in most benchmarks compared to Grok-4, particularly in complex tasks like physics simulations and generative AI capabilities, though Grok-4 offers a more streamlined interface for some applications. **Key Points:** - GPT-5 Pro outperforms Grok-4 in complex simulations like the "Spinning Hexagon" physics simulation, offering more realistic physics and smoother visuals. - GPT-5 Pro provides more versatile and visually appealing music and planetary system simulators with greater customization options compared to Grok-4. - GPT-5 Pro successfully generates an interactive Rubik's Cube simulation with a functional solver, surpassing Grok-4's attempt which was less polished. - In benchmarks measuring intelligence and speed, GPT-5 models generally rank higher than Grok-4. - While Grok-4 offers a simpler interface for some tasks, GPT-5 Pro provides superior results across a wider range of complex generative and simulation tasks. - The video concludes that GPT-5 Pro is the superior model in this comparative showdown. ![Screenshot at 00:21: A comparison chart showing the 'Intelligence' and 'Speed' benchmarks for various AI models, with GPT-5 \(high\) scoring 69 for intelligence, and Grok 4 scoring 68, indicating GPT-5's superior performance in this metric.](https://ss.rapidrecap.app/screens/HCUfhwePIFo/00-00-21.png) **Context:** The video compares two leading AI models, GPT-5 Pro and Grok-4, by testing their performance on various coding and simulation tasks using the Three.js JavaScript library. The creator, Mervin Praison, demonstrates and evaluates the output of each model when prompted to create interactive simulations like physics engines, music visualizers, flight simulators, and 3D models. ## Detailed Analysis This video compares the capabilities of GPT-5 Pro and Grok-4 across various AI tasks, including physics simulations, music visualization, and generative art. GPT-5 Pro generally outperforms Grok-4 in terms of complexity and visual fidelity. The video showcases a spinning hexagon physics simulation where GPT-5 Pro's implementation is noted for its more realistic ball collisions and smoother overall simulation, despite Grok-4's attempt. In music visualization, both models are shown to generate dynamic visuals based on audio input, with GPT-5 Pro offering more modes and customization options. The comparison extends to 3D simulations like planetary systems and Rubik's Cubes, where GPT-5 Pro's code playgrounds provide more interactive and visually appealing results, including a functional Rubik's Cube solver. While Grok-4 is presented as a capable alternative, GPT-5 Pro is highlighted as the winner due to its broader range of features, better performance in complex simulations, and more polished visual outputs. ### Physics Simulations - GPT-5 Pro excels in Hexagon Physics simulation with realistic collisions and smoother performance - Grok-4's simulation is less refined. ### Music Visualization - GPT-5 Pro offers more modes and customization for 3D music visualization - Grok-4 provides basic visualization. ### 3D Simulations - GPT-5 Pro creates more visually engaging and interactive planetary system and Rubik's Cube simulations - Grok-4's simulations are functional but less advanced. ### Generative Capabilities - GPT-5 Pro demonstrates better performance in various creative and analytical tasks. ### User Interface - Grok-4 offers a more streamlined interface for certain tasks, but GPT-5 Pro provides more control and features. ![Screenshot at 00:00: Title card introducing the comparison between GPT-5 and Grok-4.](https://ss.rapidrecap.app/screens/HCUfhwePIFo/00-00-00.png) ![Screenshot at 00:02: Demonstration of GPT-5 Pro's "Spinning Hexagon" physics simulation with multiple bouncing balls.](https://ss.rapidrecap.app/screens/HCUfhwePIFo/00-00-02.png) ![Screenshot at 00:04: Demonstration of GPT-5 Pro's "Planetary System Simulator".](https://ss.rapidrecap.app/screens/HCUfhwePIFo/00-00-04.png) ![Screenshot at 00:05: Demonstration of GPT-5 Pro's "Generative 3D Music Visualizer" in "Cube Field" mode.](https://ss.rapidrecap.app/screens/HCUfhwePIFo/00-00-05.png) ![Screenshot at 00:08: Demonstration of GPT-5 Pro's "Simple Flight Simulator".](https://ss.rapidrecap.app/screens/HCUfhwePIFo/00-00-08.png) ![Screenshot at 00:15: OpenAI's introduction page for GPT-5.](https://ss.rapidrecap.app/screens/HCUfhwePIFo/00-00-15.png) ![Screenshot at 00:18: Benchmark results comparing GPT-5 and other AI models on accuracy.](https://ss.rapidrecap.app/screens/HCUfhwePIFo/00-00-18.png) ![Screenshot at 00:21: Benchmark results comparing AI models on intelligence and speed, highlighting GPT-5 and Grok-4.](https://ss.rapidrecap.app/screens/HCUfhwePIFo/00-00-21.png) ![Screenshot at 00:36: GPT-5 Pro generating a wireframe 3D cube using Three.js.](https://ss.rapidrecap.app/screens/HCUfhwePIFo/00-00-36.png) ![Screenshot at 00:49: Grok-4 generating a wireframe 3D cube using Three.js, showing a less refined output than GPT-5 Pro's attempt at the same prompt, with a green cube instead of blue and less smooth rotation.](https://ss.rapidrecap.app/screens/HCUfhwePIFo/00-00-49.png)