“To compare like for like, we analyze non-discounted, CC BY charges. Overall, list prices are increasing slowly, but with some outliers:
The big headline is the high-impact journals now offering OA options. This has pushed maximum APCs for hybrid journals to well above their previous limits of $5,900. This year, the maximum is now $11,390 (from the Nature research journals), with the Cell titles mostly coming in at $8,900 ($9,900 for the flagship Cell).
The highest prices for fully OA journals have risen from $5,435 to $5,560.
Fully OA journal APCs are less expensive than hybrid, averaging around 58% of hybrid average APCs. This difference has increased a few percentage points over previous years, representing a small convergence.
The average hybrid APC has increased by just over 5%. This is significantly larger than the 1% or so increases over the previous few years.
The average fully OA APC has increased by 8.5% over the last year – more than twice that of previous years….”