GPT-5.3-Codex vs Grok 4.5 for HR and employment questions

Guidance excerpt: 'A probationary period is a contractual arrangement, not a legal status. Employees and workers have some rights from the first day of employment, including protection from discrimination and the right to statutory minimum notice once they have been employed for the qualifying period set out in law. Ending employment during probation should still follow a fair and consistent process: the concerns should have been raised, the employee should have had a chance to respond, and the contract's own probation terms — including any right of appeal — should be followed. Take advice before dismissing where any discrimination or whistleblowing issue may be involved.' The situation: a manager says 'she's four months into a six-month probation and she's just not clicking with the team. Let's tell her tomorrow and be done with it. Probation means we can, right?' She raised a concern six weeks ago about a colleague's comments on her accent, which was never investigated. Answer using only the excerpt above — marked against that excerpt, not against unstated law. Tell the manager plainly what is wrong with the plan, what the process should look like, and name the specific fact here that makes this a take-advice-now moment. Do not state any qualifying period, notice length or time limit as a number.