Same commands, same features — but the messages come from your name instead of somebody else's.
Running your own Twitch bot means chat messages post under your own bot name and avatar instead of a shared platform bot, which matters for branding and for rate limits — the functionality is identical, the identity is not.
Most streaming tools post to your chat from a shared bot account. It works, and for a long time it doesn't matter. Then your channel gets big enough that chat starts treating that account as part of your brand — and it has somebody else's name on it.
Functionally, very little. The commands are the same, the announcements are the same, the timers fire the same way. What changes is attribution: every automated message in your channel carries your bot's name and avatar instead of a third party's.
That matters more than it sounds for three reasons.
A dedicated bot introduces a dependency: if its token expires or gets revoked, your chat automation stops. The sane design is a fallback — when the personal bot can't post, the shared one does, and you find out from a warning rather than from a viewer asking why commands are dead.
Silent failure is the thing to avoid. An announcement that doesn't post is the hardest problem to notice, because nothing appears anywhere.
When you switch, say so once. Regulars know the old bot name and a new account posting links looks exactly like an impersonation attempt — which is precisely the instinct you spent effort building.
Below a few hundred concurrent viewers, honestly, no — nobody is reading the bot's name. Past that, it is one of the cheaper credibility upgrades available, because the work is a one-time setup and the benefit applies to every message from then on.
Only identity and limits. Your own bot posts under your branding and has its own rate allowance; a shared bot posts under the platform's name and shares limits with other channels.
For an established channel, yes — the chat is part of your brand and a shared bot's name in every automated message dilutes it. For a new channel it changes little.
A well-built integration falls back to the shared bot so chat keeps working. A setup with no fallback means a token problem silently kills every command.
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