How to Use GPT-5.6 Sol and Claude Opus 4.8 Free

Want free access to GPT-5.6 Sol and Claude Opus 4.8 without a credit card? They're hiding inside Postman's Enterprise Trial. No sketchy website involved — it all runs through the official Postman desktop IDE.

That trial reportedly gives you unlimited use plus a bonus 800 credits, and the models show up in the IDE once you're in.

Tutorial

1. Open http://postman.com/ and create an account.
2. Click Upgrade in the top right corner.
3. Choose Enterprise and start the trial.
4. Follow the trial registration process.
5. Download the official IDE.
6. Log in with the account you created.

Wrapping Up

Once you're logged in, GPT-5.6 Sol and Claude Opus 4.8 are ready to use inside the IDE. No credit card, no limits, and the 800 bonus credits are a nice extra. Give it a try.