Unsettled by Amazon Web Services’ latest round of price cuts last week, Google has gone on the record to insist its own cloud services are still much cheaper than its rival.

The company has just posted a blog outlining a price comparison of its services versus those from AWS, reflecting what it says are lower prices even after the latest round of cuts.

“In case you’ve been reading recent announcements and were wondering, rest assured: Google continues to be the price/performance leader in public cloud,” Miles Ward, global head of solutions for Google’s Cloud Platform group, said in a blog post in response to AWS’ 51st price cut.

Ward claimed that Google’s cloud still costs between 15 and 41 percent less than AWS for compute resources. He also alluded to some of the finer details of AWS’ pricing model that makes it far more expensive even with the cuts.

“While price cuts sound appealing on the surface, when you unpack the specifics of Amazon’s pricing model, it can be an unpleasant surprise,” Ward said. “We often hear from customers who are locked into contracts and aren’t eligible for the new rates, or are stuck with instances that no longer fit their needs.”

Ward provided a few examples. He said that features like Google’s new Custom Machine Types and Sustained Usage Discounts mean users only have to pay for the resources they actually use. As a result, when an exact comparison is made, AWS’ Standard M4 configuration at $87.60 per month still costs more than a comparable instance with Google, at $54.82 per month. Ward also looked at Google’s n1-standard-4 core instance, which costs $102.20 per month – around 16 percent less than AWS’s R3 HighMem instance, which is priced at $121.18 a month.

Of course to some, the fact that Google feels the need to point out how it’s still cheaper could be seen as a sign of desperation. Although Google’s cloud is growing, it’s still way behind AWS and Microsoft Azure. The most recent figures to hand from investors Market Realist Inc. show that AWS retained a 36.9 percent share of the IaaS market in Q3 2015, compared to just under five percent for Google.

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