Compare

A · run_ab70bfvsB · run_6a527aresearch-briefSwap A and B

Duration: 40.2s +172%; A: 14.8s
Cost: $0.034 +48%; A: $0.023
Tokens: 11.2k -22%; A: 14.3k
Steps: 6 +20%; A: 5
Model changed: GPT-4.1; A: Gemini 2.5 Pro

Steps, aligned

Change	Step	A	B
Slower	Input policy check	0.3s	0.8s
Slower	Plan the task	4.4s	9.5s
Slower	web_search	1.5s	4.1s
Same	Retrieve context · top 8	2.4s	2.8s
Changed	Decide next step	5.3s	11.9s
Added	Write final answer	—	8.6s

Output diff

− 0 words + 0 words 100% unchanged

Summary: four of the six sources agree that agencies switch tools mainly over client portals, pricing and reporting. The strongest evidence is a 2026 survey of 1,200 agencies and two public case studies. Confidence: high.