Somebody above pointed out that they're using Lambda.
So you can figure out their loss/margin based off the public Lambda pricing model.
Lambda costs 0.00001667 per GB-s... so if each Twilio function used 1GB of memory and ran for 1 second, it would cost them $0.17 per month to serve you.
Since the max memory in Lambda is 1.5GB and the max runtime is 5 minutes... the worst case is that twilio is spending $75 for those 10k requests. I assume they were smart enough to use lower amounts of memory and set the maximum runtime of the Lambda function pretty low, like a few seconds.
So you can figure out their loss/margin based off the public Lambda pricing model.
Lambda costs 0.00001667 per GB-s... so if each Twilio function used 1GB of memory and ran for 1 second, it would cost them $0.17 per month to serve you.
Since the max memory in Lambda is 1.5GB and the max runtime is 5 minutes... the worst case is that twilio is spending $75 for those 10k requests. I assume they were smart enough to use lower amounts of memory and set the maximum runtime of the Lambda function pretty low, like a few seconds.