It’s the same. From one of my Enterprise Plans:
RATE LIMITS
The API is limited to 5 requests per second per base. If you exceed this rate, you will receive a 429 status code and will need to wait 30 seconds before subsequent requests will succeed.
The official JavaScript client has built-in retry logic.
If you anticipate a higher read volume, we recommend using a caching proxy. This rate limit is the same for all plans and increased limits are not currently available.