Agent Execution Tax: New Procurement Metric for Browser Agent Benchmarks?

Agent Execution Tax: new procurement metric for browser agent benchmarks?

Fireworks ran 720 browser-agent tasks on WebVoyager and reported a 22.9% Agent Execution Tax, defined as wasted over productive inference; MiniMax M2.5 cost 2.3x less per successful task than Gemini, while GLM-5 reached 57.1% accuracy and Kimi K2.5 had 0% parse retries across 852 calls.

Why it matters: HKR-H/K/R all pass: the post adds a named procurement metric plus concrete benchmark numbers. Source scope is Reddit/Fireworks, so it stays in the 72–77 featured band rather than 78+.