Claude Opus 5.5 or ChatGPT Astra 6 for Creative Work? (Oct 2026)

You might be about to pick a $100 plan and trying to work out whether ChatGPT Astra 6 or Claude Opus 5.5 is the one for creative work. Both launched in September, and the honest answer is that the lead changes every few weeks. This is what we found when we ran them side by side, as of October 2026, so treat every verdict below as perishable.

Astra is quick and Opus is careful

We tested both on the same job. We asked each to build a 3D animation in Blender, starting simple and working up to a detailed, realistic scene. Blender is where a lot of us get camera control for AI video, so it was a fair test of an agent driving a real program on your computer.

• Astra was fast. A simple animation came back in one or two minutes, and a single run of the detailed scene took between 5 and 30 minutes.
• Astra needed four tries to get from the simple version to the detailed one. It used a lot more of the plan, and it made mistakes that we had to fix by hand.
• Opus 5.5 was slow. The first detailed run took something like 20 minutes and the second more than an hour. Animations have run to two hours.
• Opus 5.5 got there in two tries, made fewer mistakes and used much less of the plan.

So Astra gives you the first result sooner, and Opus gives you the right result in fewer attempts. If you are watching the clock, Astra wins. If you are watching your usage, Opus does.

Check how much of the plan one job eats

This is the part that decides the $20 plan against the $100 plan. In our experience the $20 plan is not enough for Astra if you are doing real work with it. On the $100 plan, one ten minute After Effects job comes to about 2% of the plan's usage. That sounds small until you run twenty of them in a week.

The effort setting changes the bill more than the model does. Both have levels from medium up to extra high, and above that Ultra or Max. Most of what we build as references works fine on medium or high. Save the top levels for complex work such as colour grading with masks. Running everything on the highest setting is the quickest way to burn a week of usage in an afternoon.

What each one is like in the programs you actually use

• After Effects. Astra drives it through the ChatGPT desktop app and gives you a real project with every layer editable. A title, a lower third or a stat card takes around ten minutes, and you change the text yourself afterwards.
• DaVinci Resolve. Astra builds node trees and can mask and track a face. It takes 30 to 60 minutes and Resolve crashes now and then, so save as you go.
• Blender. Both work. Astra works in the background, so it stays out of your way. Opus keeps pulling Blender to the front of the screen while it works, which is a nuisance on a single monitor.
• Writing. Opus 5.5 writes better. For technical writing, scripts and long briefs it did the stronger job in our tests.

Our general view is that Opus 5.5 is stronger at most things right now, especially code, apps and websites, and that Astra still has the better feel for the creative side and moves quicker inside the creative programs. The gap for an average user is small. It is closer to choosing between two phones than between two different tools.

Use the one you already pay for

That is the rule we follow. If you have a higher tier ChatGPT plan, use Astra. If you have the expensive Claude plan, use Opus. If you pay for both and use both heavily, test your own jobs in each and keep notes on which one wins for what.

The reason is simple. Two weeks from now one of them could launch a model that overtakes the other, and two weeks after that the lead could swap back. A choice built on this week's verdict will be stale in a month, but a plan you already have costs you nothing extra to use.

Keep the job simple whichever you pick

The biggest saving has nothing to do with the model. For a camera move reference, a block for a body and a ball for a head is enough. We call it the complexity trap. The more detail you build in Blender, the more the video model copies the detail and not the motion, and the more usage the build eats. Most shots need no Blender at all, and a location image, a character sheet and a prompt will do.

For example, inside GenHQ there is a full Blender training that runs Astra and Opus 5.5 through the same build and shows the tries and the usage for each.

Last, a safety note. Both apps ask your permission at each step when they take over a program. You can switch to approve-for-me so they stop interrupting, which saves a lot of clicking. Do it for a Blender job. Do not leave it on for everything, because an agent with blanket approval is controlling your whole computer.

Common questions

Is Claude Opus 5.5 better than ChatGPT Astra 6?

In our Blender test Opus 5.5 needed fewer tries, made fewer mistakes and used less of the plan, but it was slower. Astra was quicker per run. As of October 2026 Opus is stronger in most areas, and that can change within weeks.

Which should I choose for After Effects and DaVinci Resolve?

Astra is the one we have used to drive both, through the ChatGPT desktop app. It builds a real After Effects project with editable layers and node trees in Resolve. Check the current state of each tool before you pay, because this area moves quickly.

Is the $20 plan enough?

For light use, maybe. For jobs that run for ten minutes or more, we found the $100 plan was where it became comfortable. A ten minute After Effects job used about 2% of it.

Do I need both?

No. Use the one you already pay for and only add the second if you hit a job it handles badly.

Want to learn this with people testing the new models every week? Join GenHQ.