GPT 5.5 Codex Review: Worth the Price Hike?

GPT-5.5 Full Review & Codex Tests | The Ultimate AI Coding Agent? Dive deep into OpenAI's newly released GPT-5.5! In this video, I walk you through a comprehensive evaluation of the GPT-5.5 model, testing its persistent agentic capabilities, coding prowess in Codex, and multi-step reasoning. we go over front-end development, 3D game creation, web scraping, and even hallucination checks to see if it is truly worth the steep API price tag. What you’ll learn in this tutorial: ✅ How GPT-5.5 compares in pricing against GPT-5.5 Pro, Claude Opus 4.7, and open-source models like DeepSeek V4 Pro. ✅ Setting up and utilizing OpenAI’s Codex harness for complex project structures and agentic coding tasks. ✅ Generating complete React, Vite, and Tailwind CSS web apps using imported design frameworks (Anthropic frontend skill). ✅ Leveraging the new GPT Image 2.0 integration for native, on-the-fly image generation within your codebases. ✅ Real-world agentic tests: building a playable 3D flight simulator, web scraping live data, and manipulating external MP4 video files. ✅ Creating complex 19-page PDF real estate reports and converting them directly into 5-slide PowerPoint presentations. ✅ Where the model still spectacularly fails (hint: simple logic and counting fingers!). Tools & Models Used: OpenAI Codex: The agentic development harness for reasoning over files and large codebases. GPT-5.5: OpenAI's latest model for complex, persistent, multi-step professional workflows. GPT Image 2.0: For native, high-quality visual generation inside web UI tests. Anthropic Frontend-Design Skill: A custom markdown prompt framework to dramatically improve UI/UX outputs. Edge.tts: Custom text-to-speech skill used for translating and generating audio summaries. PC Specs: Gpu: Nvidia RTX 5060 Ti 16 GB : https://amzn.to/4rU7xRy Ram: 64gb 4x16gb Kingston Fury : https://amzn.to/473HoaG Model Used : GPT-5.5 (High Intelligence Tier via ChatGPT Plus / Codex) Pro Tip: High-quality instructional frameworks are key! While the base GPT-5.5 model is smart, providing a strict design skill (like the Anthropic markdown file) elevates your UI output from basic wireframes to highly professional, production-ready designs. If you found this workflow helpful, don’t forget to Like, Subscribe, and Hit the Notification Bell for more deep dives into AI-powered design and development! ig :   / kintugk   x : https://x.com/gk_kintu Contact: [email protected] Timestamps: 0:00 - Intro & The Finger Counting Fail Preview 0:09 - GPT-5.5 Overview & Target Audience 1:26 - API Pricing Comparison (vs Opus 4.7 & Open Source) 3:37 - Setting up Codex & Selecting the Model 4:54 - Test 1: React Frontend Design & GPT Image 2.0 7:50 - Test 2: Playable 3D Flight Simulator (Three.js) 8:39 - Test 3: Downloading External Video Media (Pexels) 10:08 - Test 4: Web Summarization & Text-to-Speech (Edge.tts) 11:26 - Test 5: Real-time Web Search & Data Scraping 13:00 - Test 6: Hallucination & Fact-Checking 14:00 - Test 7: Risk Assessment & Knowledge Cutoff 15:42 - Test 8: Real Estate PDF & PowerPoint Generation (Web UI) 19:26 - Test 9: The Finger Counting Fail (GPT Vision) 21:00 - Test 10: Car Wash Logic Test 21:40 - Final Thoughts & Outro Hermes Video :    • Hermes Agent : Full Review and Test   Gpt image 2 :    • ChatGPT Images 2.0 -  Full Review and Test   Sora 2 Video :    • Sora 2 is Officially DONE: Why It Was Doom...   #GPT55 #OpenAI #AICoding #Codex #WebDevelopment #ArtificialIntelligence #AIAgents #TechReview