How I Got ChatGPT-5.4 for Free (10 min setup)
Tired of hitting ChatGPT's free-tier limits mid-task?
Here's how to set up a ChatGPT Business workspace with GPT-5.4, plug it into OpenCode, and share access with up to 5 teammates, all in about 10 minutes.
Last time I showed you how to use Claude for free. This time it's OpenAI's turn.
Create a ChatGPT account
1. First, we need to create a new account (this promotion won't work on existing accounts).
The most important thing is that only certain email domains are suitable for registration and receiving offers.
Emails that are unlikely to work: gmail, icloud, proton
I can't advertise the service with a suitable email address, so I hope you can handle this yourself, because you're smart here.
Find more detailed guides on my tg channel:
2. And after successful registration, we see the coveted offer at the top of the screen.
We choose the business subscription because it will have more favorable limits.
Next, enter your card details.
⚠️ Important: The business subscription costs $25/seat per month. After the free trial ends, your card will be charged automatically. If you don't want to pay, cancel the subscription in Settings → Billing before the trial expires. Set a reminder.
3. And now you get an account and can invite members to this business account to use the opportunities together.
You can invite up to 5 participants.
Each participant will have their own daily, weekly and monthly quota.
I think you'll understand how to use it.
Now you have a business account with a ChatGPT subscription, but sometimes the GPT servers are overloaded and it starts to run slower.
To make it more convenient to use, we can integrate it into OpenCode.
Read more 👇
OpenCode integration
1. Go to the OpenCode website and download the application.
OpenCode is an open source agent that helps you write code in your terminal, IDE, or desktop.
2. After installing the application, open it, then go to Settings → Providers → OpenAI + Connect.
After selecting a category, you will be logged in via your browser and everything will be ready.
We received all the necessary and modern models.
You can also watch the usage by following this link 👇
If you are interested in automation, then read on.
Connecting OmniRoute
OmniRoute is an open-source repository that helps consolidate all profiles in one place and, for example, allows you to switch between profiles in OpenCode or Claude Code if the limits run out on one account or another.
1. NodeJS
For correct operation, we need to download Node.js version 22.22.2.
2. Installing OmniRoute
Now we are ready to install OmniRoute itself.
Enter the commands below into your terminal:
npm install -g omniroute@3.5.3
Set a password:
# Windows (CMD):
set INITIAL_PASSWORD=YOUR_PASSWORD
# macOS / Linux:
export INITIAL_PASSWORD=YOUR_PASSWORDLet's launch:
omniroute
After launching, a personal OmniRoute dashboard appears locally.
We log in with the password we created.
After that, we go to Providers -> OpenAI Codex.
And we connect OmniRoute with OpenAI account.
Next we go to the API manager -> create an API key.
Then in endpoints -> copy your local host.
Let's go to opencode to add all this.
Settings -> Providers -> Custom
Enter the required data
And below we add the models that you need, we take them from the same panel:
After this, the installation is complete, enjoy!
You now have ChatGPT Business running inside OpenCode, with OmniRoute handling multi-account switching in the background.
No more "rate limit exceeded" in the middle of a build.
Best wishes! 🫡
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