DeepSeek V4 Pro vs GPT-5.5 for HR and employment questions

Guidance excerpt: 'An eligible employee can make a statutory request to change their working hours, times or place of work. The employer must consider the request in a reasonable manner and may only refuse it for one or more of the specified business reasons set out in the legislation, such as the burden of additional costs, an inability to reorganise work among existing staff, an inability to recruit additional staff, a detrimental impact on quality or performance, a detrimental effect on ability to meet customer demand, insufficient work during the periods the employee proposes to work, or planned structural changes. The decision should be given in writing with the reason, and the employee should be offered a way to challenge it. Statutory time limits apply to handling requests — check the current rules.' The situation: a payroll administrator has asked to compress her 37.5 hours into four days. Her manager's response is 'no — if I let her, everyone will want it.' Answer using only the excerpt — marked against it. Say plainly whether the manager's reason is one of the specified business reasons, describe what considering the request reasonably would actually involve here, and set out how a refusal would have to be handled if a genuine business reason did exist. Do not state any time limit as a number: say what must be checked and where.