Grok 4.5 tops the ranking of AI assistants for the browser: a new standard of autonomy
The market for AI agents capable of autonomously interacting with websites is rapidly evolving. These digital assistants no longer just generate text—they open pages, click buttons, fill out forms, and collect data, acting on behalf of the user. A recent comparative test conducted by Gregor Zunic, founder of the Browser Use service, has identified a clear leader in this category: the Grok 4.5 model from xAI.
During the experiment, analysts evaluated five different tools based on a key criterion—the percentage of successfully completed tasks on websites without errors. The results demonstrate a significant performance gap.
Test Results: Grok Out of Competition
The absolute winner was Grok 4.5, which correctly completed 76.42% of tasks. This places it ahead of its direct competitors:
- OpenAI (GPT 5.5): 72.70%
- Anthropic Opus 4.8 (version 1): 70.75%
- Anthropic Opus 4.8 (version 2): 67.92%
- GPT via OpenClaw plugin: 60.38%
It is important to note that all assistants used the identical Browser Use framework for browser control. The difference in efficiency is solely due to the quality of the underlying language model and its ability to make correct decisions in real time.
Why Was Grok 4.5 Better?
The key takeaway from this comparison is that the decisive factor is not so much the method of browser integration, but rather the "intelligence" of the model itself. Grok 4.5 demonstrated a deeper understanding of web page context and accuracy in executing multi-step instructions. Even within the same developer (Anthropic), the difference in results between the two assistant versions was nearly 3 percentage points, confirming high sensitivity to the model architecture.
This test is not just a numbers race. It signals the beginning of a new era where AI agents become full participants in the digital economy. Grok 4.5 sets the benchmark for all subsequent developments in this field.
Expert Opinion: The market for autonomous AI agents is transitioning from the experimental stage to practical application. For the crypto industry, this means the emergence of powerful tools for automating DeFi operations, arbitrage, and data analysis. Investors and developers should closely monitor Grok's progress—its superiority in browser tasks could become a significant competitive advantage for the entire xAI ecosystem.