What are the Twitter limits?

From the Twitter Help

Twitter started with a few limits based on various parameters, and they’ll be adding more as time goes on. They reveal some limits only when you reach them, and tell you about others in advance. Twitter currently applies limits to any person who reaches:

• 1,000 total updates per day, on any and all devices (web, mobile web, phone, API, etc. )
• 250 total direct messages per day, on any and all devices
• 150 API requests per hour

They’ve also placed limits on the number of people you can follow. The number is different for everyone, and is based on a ratio that changes as the account changes. If you hit a follow limit, you must balance your follower/following ratio in order to follow more people- basically, you can’t follow 50,000 people if only 23 people follow you. Based on current behavior in the Twitter community, They’ve concluded that this is both fair and reasonable.

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