Computer Use Is 45x More Expensive Than Structured APIs
4 hours ago
- #Web Automation
- #AI Agents
- #Benchmarking
- Computer use (vision agents) is 45x more expensive than structured APIs, consuming 550k tokens vs 12k tokens and taking ~17 minutes vs ~20 seconds for the same task.
- Vision agents struggle with UI interpretation, requiring detailed walkthrough prompts to complete tasks accurately, adding hidden engineering costs beyond token counts.
- Structured API agents are consistent and faster, with no variance across runs, while vision agents show high variability in steps, time, and tokens due to screenshot-reason-click loops.
- Auto-generated APIs reduce engineering effort, making structured approaches viable for internal tools, whereas vision agents remain necessary for third-party or legacy systems.
- Better models may reduce cost per step but not step count, as the interface design dictates the number of interactions required for task completion.