GPT-5.3 Codex Spark Is INSANELY Fast – Hands-On Testing OpenAI’s NEW Model

Description

Timestamps: 00:00 - Intro 00:34 - First Look 01:43 - Technical Look 02:49 - Browser OS Test 06:08 - C++ Skateboard Game Test 08:55 - Subway JS Web Scene Test 10:13 - Python 3D FPS Game Test 11:18 - 3D Printer Simulation Test 13:47 - Flight Combat Simulator Test 15:37 - Ship Combat Simulator Test 16:53 - Pop Culture Site Design Test 19:03 - Website Refusal Test 20:27 - Dating Website Design Test 21:13 - Results Overview 22:04 - Closing Thoughts AI Integration & Consulting https://bijanbowen.com Join The Discord: https://discord.gg/hfaR2exy7S In this video, we take a first look at GPT-5.3 Codex Spark, the latest ultra-fast coding-focused release. The goal of this test is simple: determine whether this is truly the fastest coding model available right now. We begin with a technical overview and then move directly into real-world tests. These include browser-based OS workflows, C++ game development, JavaScript scene generation, Python-based 3D FPS tasks, 3D printer simulation, combat simulators, website design challenges, and refusal behavior under constrained prompts.