One of the developers behind Browser Use thinks Grok 4.5 has a pricing problem, and Elon Musk seems to agree.

Alexander Yue, who works on the open source Browser Use project, recently shared fresh benchmark results comparing the latest AI models on browser automation tasks. Grok 4.5 came out ahead of OpenAI’s GPT-5.6-Sol and finished just behind Claude Opus, which has long been one of the strongest models for navigating websites and completing actions inside a browser.

The benchmark itself isn’t the surprising part.

Yue pointed out that despite the strong results, Grok 4.5 is only about 10% cheaper than Claude Opus. Much of that comes down to cached input pricing, which matters a lot for browser agents because they repeatedly process the same context while moving through web pages.

Musk spotted the post and replied that xAI should lower its cached pricing. Yue answered that doing so would probably make Grok 4.5 the better choice for Browser Use.

We’ve written about Browser Use before when the project started attracting attention for making AI browser agents easier and cheaper to build. The latest results suggest Grok 4.5 is already competitive from a technical standpoint. The remaining hurdle appears to be cost rather than capability.

Browser automation has become one of the busiest areas in AI over the past several months. Instead of generating text in a chat window, these models are being asked to search websites, click buttons, fill in forms and complete tasks that would normally require a person sitting in front of a browser.

The companies building these models seem to be chasing the same goal. OpenAI recently scrapped its standalone ChatGPT Atlas browser and shifted its attention toward browser features built directly into ChatGPT instead.

xAI hasn’t announced any pricing changes for Grok 4.5 yet. Still, Musk’s reply suggests the company is aware that performance alone isn’t enough if developers can get similar results elsewhere without paying as much.

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