Why I Chose Codex (GPT-5.4) In practice, it turns out that Codex covers the lion's share of my daily needs. It writes code quickly, reliably, and most importantly, it navigates the context of existing projects perfectly. Whether it’s setting up DevOps pipelines, designing an API, or writing logic for bots—the model handles it flawlessly. At the same time, it doesn’t "eat up" your allocated budget in just a couple of days of active work.

After switching from Claude, the difference in expenses became especially noticeable. Yes, Claude is a genuinely powerful tool, but for regular coding, using it hits the wallet hard. Codex delivers practically identical results but costs the developer significantly less.

What the $10 Subscription Actually Gives You Essentially, by buying the Copilot Pro subscription for ten bucks, you get full access to artificial intelligence without ever leaving your editor. This means unlimited on-the-fly code autocomplete, a convenient built-in chat, and an advanced agent mode capable of editing multiple files at once. This price also includes around 300 "heavy" requests per month.

Is that a lot or a little? In my experience, this limit is more than enough for either a few truly massive tasks a week or continuous, background coding without worrying about any restrictions.

The Agent Zoo: What to Use in Practice Today’s Copilot isn't just a single button anymore; it’s a whole suite of specialized modes.

The most frequently used one is Copilot Chat. For me, it’s an indispensable daily assistant: whether I need it to explain a confusing piece of someone else's code or draft a boilerplate function. I use it constantly.

The second crucial tool is Agent Mode (or Coding Agent). This feature can autonomously make changes across multiple files at once and build features practically "turnkey." It's insanely useful, but it requires close supervision from the developer, as the agent periodically shows too much initiative and might write something unnecessary.

Of course, within the ecosystem, you have access to other models too. You can use Claude as an alternative, but it’s still a bit pricey. As for Gemini, I barely touch it—the quality of its responses still feels too unstable to me for production use.

What Can You Actually Build With This Stack? Ten dollars a month pays off instantly if you are building MVPs, writing backends, designing APIs, or just want to automate boring routines. By my own estimation, development speed with an assistant like this increases two to three times over.

You can easily create entire applications for Windows or macOS, write complex scripts to automate any task, or build proxy servers when you need to bridge different services or devices communicating over different protocols. It even gets to the point where you don't necessarily need deep knowledge of a programming language or software architecture—it's enough to approach the project planning phase competently and then communicate clearly and in detail with your AI agent.

Bottom Line To sum it up, Copilot for $10 is arguably one of the most cost-effective and justified tools for a developer today.

My personal working stack right now looks as streamlined as possible: good old VS Code, Copilot, and the Codex (GPT-5.4) model. I only resort to Claude for rare, exceptionally complex architectural challenges. In all other situations, the current setup gives me the perfect balance of a reasonable price, high speed, and an excellent final result.