Uploaded September 2025 | Updated September 2026, 2 weeks ago
Sign-up for updates to Verbi - transcription app: https://tally.so/r/3y9bb0
I put GPT-5 Codex to a real test: I handed it a PRD in VS Code, ran it with Codex CLI, and timed how long it took to build a working, on-device app. Watch the full build—planning → coding → debugging → demo—to see where GPT-5 Codex shines, where it stumbles, and if it’s ready for real projects.
Website: engineerprompt.ai
RAG Beyond Basics Course:
prompt-s-site.thinkific.com/courses/rag
Let's Connect:
🦾 Discord: discord.com/invite/t4eYQRUcXB
☕ Buy me a Coffee: ko-fi.com/promptengineering
|🔴 Patreon: patreon.com/PromptEngineering
💼Consulting: calendly.com/engineerprompt/consulting-call
📧 Business Contact: engineerprompt@gmail.com
Become Member: tinyurl.com/y5h28s6h
💻 Pre-configured localGPT VM: bit.ly/localGPT (use Code: PromptEngineering for 50% off).
Signup for Newsletter, localgpt:
https://tally.so/r/3y9bb0
Sign-up for updates to Verbi - transcription app: https://tally.so/r/3y9bb0
I put GPT-5 Codex to a real test: I handed it a PRD in VS Code, ran it with Codex CLI, and timed how long it took to build a working, on-device app. Watch the full build—planning → coding → debugging → demo—to see where GPT-5 Codex shines, where it stumbles, and if it’s ready for real projects.
Website: engineerprompt.ai
RAG Beyond Basics Course:
prompt-s-site.thinkific.com/courses/rag
Let's Connect:
🦾 Discord: discord.com/invite/t4eYQRUcXB
☕ Buy me a Coffee: ko-fi.com/promptengineering
|🔴 Patreon: patreon.com/PromptEngineering
💼Consulting: calendly.com/engineerprompt/consulting-call
📧 Business Contact: engineerprompt@gmail.com
Become Member: tinyurl.com/y5h28s6h
💻 Pre-configured localGPT VM: bit.ly/localGPT (use Code: PromptEngineering for 50% off).
Signup for Newsletter, localgpt:
https://tally.so/r/3y9bb0
