In this article it is claimed that photosynthesis efficiency could be up to 60%.
The closest process to artificial photosynthesis humans have today is photovoltaic technology, where a solar cell converts the sun’s energy into electricity. That process is famously inefficient, able to capture only about 20% of the sun’s energy. Photosynthesis, on the other hand, is radically more efficient; it is capable of storing 60% of the sun’s energy as chemical energy in associated biomolecules.
The claim has been repeated by many news outlets around the world, it seems they all took the claim at face value without any verification.
However on Wikipedia it is claimed that the actual efficiency is much lower.
Plants usually convert light into chemical energy with a photosynthetic efficiency of 3–6%
Furthermore another Wikipedia article linked in the first comment to this question notes that the even the theoretical maximum efficiency is way less than the claimed value.
For actual sunlight, where only 45% of the light is in the photosynthetically active wavelength range, the theoretical maximum efficiency of solar energy conversion is approximately 11%.
Why there is such a difference? What is the actual efficiency of Photosynthesis?