01What GPT-6 Astra Is and How It Works

GPT-6 Astra is the newest AI model from OpenAI. It is called the world's most intelligent and aligned model. It scores 98% on the Frontier Map benchmark.

It also scores 99.9% on ARC AGI 3 and 100% on Exploit Bench. This means it is so smart that the tests are no longer hard enough. It can control your computer, browse the web, write software, and do science.

It also solved long-standing math and computer science problems. It works faster than previous models like GPT-5.6 and Fable 5.1. It is also cheaper to use through the API.

The model is very efficient at learning and reached human parity on 96% of tasks in one test.

02Main Features of GPT-6 Astra

Here are the main features of GPT-6 Astra as seen in the episode:

  • Computer use: It can control your computer, click, type, and browse for you.
  • Coding: It writes and changes software quickly. It updated an agent OS in seconds.
  • Game design: It integrates with Blender MCP to build 3D games like a racer with one prompt.
  • Video generation: It uses Remotion to create promo videos in minutes.
  • Orchestration: It can direct other AI models to save tokens and get more done.
  • Speed: It does tasks in 60 seconds that other models take 30 minutes to finish.
  • Science and research: It can help with complex scientific and professional work.

03How to Set Up GPT-6 Astra in ChatGPT Codex

To start using GPT-6 Astra in ChatGPT Codex, follow these steps:

  1. Make sure you are on the Pro or Plus plan. The Pro plan gives full access.
  2. Open the ChatGPT desktop app. Go to the menu and click "Check for Updates". Install any available update.
  3. After updating, switch to the "Work" area (Codex) inside ChatGPT. You will see a model dropdown.
  4. Select GPT-6 Astra from the dropdown. If you do not see it, restart the app.
  5. Install the ChatGPT computer use extension if you want to control your browser. Enable it in your browser settings.
  6. Now you can start a new project and give it a prompt. Describe what you want to build.

04How to Use GPT-6 Astra: Real Examples Tested

In the episode, Julian tested GPT-6 Astra with several tasks. First, he asked it to update an agent OS to use GPT-6 Astra. The model found the code, changed it, and swapped the model instantly.

Then he tried computer use: he told it to post an announcement on his school group. It opened the browser, logged in, and posted the message. However, it wrote "GPT-5" instead of "GPT-6 Astra" in the post.

Still, the task worked.

Next, he asked it to redesign a website from scratch. The result was minimal and dark. It did not look good.

He then gave it a style library or example pages. The second attempt was much better. He also built a 3D racer game using Blender MCP.

The model connected to Blender, modeled the track, added sound, and made it playable. It did all of this in one prompt. He also created a promo video using the free Remotion skill.

The video was 30 seconds long and looked nice. All these tasks took only a few minutes each.

05GPT-6 Astra Benchmarks and Comparisons

Julian compared GPT-6 Astra to other models in the episode. He said it scores 98% on Frontier Map, 99.9% on ARC AGI 3, and 100% on Exploit Bench. These scores are so high that the benchmarks are no longer useful.

He showed a chart comparing API cost versus resolution rate. GPT-6 Astra is cheaper and better than Fable 5.1. He also said it is way more powerful than Fable 5 or Opus 5.

A test by the ARC Prize Foundation showed it reached human parity on 96% of levels. It is also one of the best computer use models. In practice, it completed tasks in 60 seconds that would take Fable 5 about 30 minutes.

The only weak spot was website design from scratch. Without a style library, the result was not good.

06Tips and Limits When Using GPT-6 Astra

When using GPT-6 Astra, keep these tips in mind:

  • Usage limits: Julian used 25% of his weekly token limit in just 40 minutes. You have resets available, but use them wisely.
  • Organize projects: Inside Codex, conversations can disappear if you don't pin them. Pin important chats to the top.
  • Website design: Always provide a style library or example page. The model does not create good-looking sites from scratch.
  • Integrations: If using Blender MCP or other tools, the app may restart. Just go back to the chat and say "continue".
  • Orchestrate: Save tokens by having GPT-6 Astra direct cheaper models or free APIs for simple tasks.
  • Small errors: The model may get details wrong, like writing "GPT-5" instead of "GPT-6 Astra". You can fix that with a follow-up prompt.

07Who Should Use GPT-6 Astra and Why

GPT-6 Astra is for developers, creators, and anyone who wants to automate complex work fast. It is ideal for building software, designing games, making videos, and controlling computers. It matters because it is a huge step in AI performance.

It does in seconds what other models do in half an hour. It is easy to integrate with agent systems like Hermes. If you already have a ChatGPT subscription, you can use it without extra API costs.

However, you must manage your token usage and give clear instructions. If you do that, GPT-6 Astra can save you hours of work. Julian said it is his new favorite model because of its speed and power.

He built it into his Agent OS right away. For anyone building at the frontier, this model is worth trying.