🎉 Vibe Check: GPT-5 Codex Unveiled!
OpenAI's latest update, GPT-5 Codex, is finally upon us! If you thought coding was daunting, think again—this new version just might make you believe in magic. 🪄
Not only does Codex boast two major improvements, but it also promises a much smoother coding experience. In this vibe check, we'll explore the features in detail and what they mean for you.
🚀 What’s New in GPT-5 Codex?
1. New Model (GPT-5 Codex)
Say hello to a fine-tuned coding model that smartly selects its own “thinking time.” It answers simple queries in a flash but stays focused on complex tasks for way longer (like that friend who doesn’t leave your side when you’re in deep conversation!).
2. Seamless Handoffs
Features like handoffs between VS Code and Codex Cloud allow you to start coding on your local machine and then hand the job off to Codex Cloud. So while you’re offline, your code keeps running in the background! Now that’s what we call a true partner in coding. If you're in the VS Code world, you'll appreciate this smart setup. 🙌
3. Enhanced Code Reviews
Not just a coding assistant, GPT-5 Codex includes a code review bot that can run checks and apply fixes on GitHub to catch those pesky issues that often escape even the keenest eyes. No more skipping code reviews—this bot's got your back! 🚀
4. Availability & Pricing
GPT-5 Codex will be incorporated into the web version of Codex and made available for CLI and VS Code extension users—pricing is aligned with GPT-5, making it a steal for all the firepower you're getting!
🤖 Codex Learns to Think—and Keeps Going
The highlight of this update is that Codex is now akin to a fine-tuned version of GPT-5, specifically designed for coding. It uses something called dynamic thinking time, meaning it can deliver quick answers to trivial coding questions while taking its time to deliberate on much tougher tasks (like the team player you wish you could have in every project).
Feeling chatty? You’ll be able to have back-and-forth conversations with it instead of waiting silently like a code execution timer. Imagine how much more productive that could be!
🔍 Key Insights about Codex in Action
Testing phase feedback: Members of the Every team got hands-on with it, and the results were intriguing.
🧠 Smart Timing and 35 Minutes of Code
In one impressive trial, a user managed to keep the Codex churning out code for 35 minutes by managing coding tasks with clear milestones. I mean, who wouldn’t want an AI buddy that can stick around for that long? 🤯
Just remember: runtime is a sign of autonomy. If Codex can keep going without having to reset the process, you’ll be closer to achieving uninterrupted efficiency.
⚡ Smart Decisions: Less Is More
During Kieran Klassen's experimentation with Codex, he noted that it knows when to hustle or take its time. Ask it to quickly explain a project, and bam! You get a response in 30 seconds. Ask it to analyze something in detail, and it shifts into deep analysis mode accordingly.
Hot Tip: Coding tasks can stretch Codex for over 25 minutes, while research tasks max out around five. This means if you don’t want it holding your hand the entire time, you can still offer direction and it’ll surprise you with the output!
💡 What Needs Work
Still a Bit Picky
While GPT-5 Codex excels in many areas, it can be a tad selective about the tasks it chooses to tackle. Sometimes it’ll refuse to code something complex in one session, which makes it seem like a perfectionist (can you blame it?).
Environment Setup Limitations
Setting up Codex isn’t a walk in the park; it might assume you’re on a specific type of command-line shell when you might actually be using another. So, be prepared for some pesky environment configuration. 🤦♂️
Multi-Agent Workflows Still Need Tuning
If you’re trying to coordinate multiple tasks, Codex currently doesn’t keep pushing without prompts. It thrives on clarity and direction, so you’ll need to plan your prompts well to utilize its full potential.
🎉 Final Thoughts
In terms of coding, GPT-5 Codex is a giant leap forward. With its new features, such as the improved hand-offs and code reviews, it’s genuinely developing to be a collaborative partner in your coding journey.
A little caution remains, but as you adopt this tool more, you'll likely find that it’s becoming a valuable asset in your engineering toolkit. So what are you waiting for? Get coding with style and flair! 🎈
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Dan Shipper is the cofounder and CEO of Every. You can kick-start your journey by following him on X @danshipper or tune in on LinkedIn.