How many Text to Speech requests can I make and can I increase it?

The concurrency limit (concurrent requests running in parallel) depends on the tier you are on.

Below are the current concurrency rates for Text to Speech.

Plan	Flash and Turbo models	All other models
Free	4	2
Starter	6	3
Creator	10	5
Pro	20	10
Scale	30	15
Business	30	15

If you require a higher number of concurrent requests, please reach out to our Enterprise Department directly via this webpage. We will be happy to discuss a tailor-made plan that meets your specific requirements.

ElevenAgents and Speech to Text have different concurrency limits:

ElevenAgents concurrency limits.
Speech to Text concurrency limits.