Upcoming missions targeting the measurement of the absolute intensity of the Cosmic Microwave Background (CMB) are expected to detect spectral distortions—deviations from its blackbody distribution. Cosmic inflation, a rapid expansion of the universe shortly after the Big Bang, can cause these distortions. Therefore, these experiments provide an opportunity to test various inflationary theories, which require precise predictions. In this study, we first numerically fit all inflationary observables to current data. We then calculate the predicted spectral distortions for a multifield inflationary model. Our findings indicate that these spectral distortions are approximately 100 times more intense than the standard signal. These results are particularly intriguing in the context of forthcoming cosmological observations, such as the production of primordial black holes and gravitational waves.