SAN FRANCISCO — Pillsbury Winthrop Shaw Pittman said Tuesday it has temporarily reduced pay for some associates and counsel based on productivity levels, the latest sign that big firms are questioning their traditional compensation models.

The firm would not say how many of its 200 associates were affected, nor how much their pay was reduced. The cuts were first reported on the blog Above the Law , which pegged them between 10 and 20 percent, which firm spokeswoman Sandi Sonnenfeld said was “not entirely correct.”