Augment makes GPT-5.4 default, free

This is less a flashy launch than a sharp product-positioning move: Augment is betting that the next AI coding winner will be the tool that best manages agent workflows, not just the one with the best autocomplete. Making GPT-5.4 free for now also lowers the switching cost for teams deciding whether Augment should be their daily driver.

• –Augment says GPT-5.4 used roughly 18–20% fewer tokens on hard tasks like refactors, architectural planning, and multi-file reasoning in internal testing
• –The upgrade lands across the whole stack at once — IDE, CLI, and Intent — which matters more than a model bump isolated to one surface
• –Keeping existing threads unchanged unless users opt in is a sensible rollout detail that avoids disrupting in-progress work
• –The strongest message here is about orchestration: Augment is explicitly selling planning, delegation, and dependency management as the real bottleneck in agentic development
• –The limited-time free offer is a straightforward growth lever in a crowded AI coding market where evaluation friction still kills adoption