increasing Bedrock quotas without provisioning throughput

Hi. Is there a way of increasing AWS Bedrock quotas without purchasing Provisioned Throughput?

For example if you want to create an app that summarizes books without chaining prompts you are limited to Anthropic's models. In production, if you have some clients it will throttle as you would reach the 200,000 tokens per minute easily (https://docs.aws.amazon.com/bedrock/latest/userguide/quotas.html). Is there an alternative to increase that limit without incurring in the huge costs of provisioned output? For example provisioning 1 model unit for Claude 2.1 costs around $45,990.00 :/. I guess the provisioned throughput works like EC2 instances, you are billed by the provisioned capacity not by the use, so although it is not used you would be billed that? It seems like there is not an intermediate option.

Thanks!