Veylark

Moderation for Twitch

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Your chat, without the same old questions.

Describe in one sentence what should stay out of your chat. VeylarkBot recognises it however it is phrased and replies kindly. The example chat shows how it scores every message.

What should stay out of your chat?

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Free for 10,000 messages a month. New rules start in test mode.

Stream chatRule: Questions about games

  1. cloud7: gg, that boss was hard

    stays0.04

  2. northlight: minecraft yesterday was so much fun

    stays0.583

  3. pixelfan: when are you finally playing minecraft again??

    deleted0.96

  4. Replying to @pixelfan: when are you finally playing minecraft again??

    VeylarkBot: @pixelfan Which games come when is in the schedule: !schedule

    2

  5. mousey: is the block game coming back soon

    deleted0.881

  6. lenny_bo: thanks for the stream today

    stays0.02
Example chat, threshold 0.80.1 Caught, although “minecraft” isn't in it.2 VeylarkBot replies kindly instead of punishing.3 Similar, but harmless: stays.

2 veylark.tech, Issue 10/2026Review 3

Word filters don't understand intent.

The same question comes in a hundred variants. Put “minecraft” on a word list and you delete the viewer raving about yesterday's stream while “mc stream when??” slips through. Mods end up sorting by hand again.

VeylarkBot reads the meaning. A rule is one sentence, the way you would explain it to a new mod, plus a few examples of what should match and what shouldn't. Every message gets a confidence between 0 and 1; only above your threshold does anything happen.

For fixed terms like links or names, the word list stays. It is fast, needs no AI and keeps running even when the month's quota is used up.

Rule “Questions about games”, four example messages
Message in chatWord filter “minecraft”VeylarkBot
when are you playing minecraft again?deleteddeleted
mc stream when??misseddeleted
is the block game coming back soonmisseddeleted
minecraft yesterday was so much fundeletedstays
Word filter1/4handled correctly
VeylarkBot4/4handled correctly

Illustrative example with the default threshold 0.80.

4 veylark.tech, Issue 10/2026Comparison 5

Three steps to your first rule.

1 Log in with Twitch. VeylarkBot joins your channel as a bot, with the rights a mod has.

2 Describe it in one sentence. The assistant turns it into a rule with examples and asks at most twice.

3 Test, then switch it on. New rules only write to the log at first. Once everything fits, you switch them live.

6 veylark.tech, Issue 10/2026How it works 7

Kind to your chat. Honest with you.

A bot in your own chat needs trust. That is why VeylarkBot is built to be careful: the default is deleting plus a friendly reply; timeouts and bans only exist if you switch them on deliberately.

If the model isn't sure, it only flags the message and you decide. If the AI can't be reached, VeylarkBot doesn't step in at all. Every action is in the log; false alarms flow back into the rule as counter-examples.

Pros

  • Understands paraphrases, abbreviations and typos
  • Replies kindly instead of punishing
  • When in doubt, nothing happens
  • Undo timeouts and bans with one click
  • Word list included, works without AI

Cons

  • Twitch can't bring back deleted messages. That's why every rule starts in test mode.
  • Uncertain cases need a decision from you or your mods.
  • Once the quota is used up, only the word list works until the end of the month.

8 veylark.tech, Issue 10/2026Strengths and limits 9

Start free, grow with your chat.

Billing is by checked messages. When the quota is used up, the bot doesn't switch off but keeps working with the word list.

Free

€0

10,000 messages a month, 1 rule, delete only. For trying it out, no credit card.

Start free

Pay as you need

Basic · 100,000 messages · €18 a month

From 380,000 messages (€60) you get Creator status automatically, with timeouts, bans and the Managed Ruleset.

Get started

€3 base fee plus €3 per 20,000 messages. Unlimited rules. All prices include VAT.

More than 1.5 million messages a month? Get in touch

10 veylark.tech, Issue 10/2026Buyer's guide 11

Good to know.

Does VeylarkBot replace my mods?

No. It takes the routine off their hands. Decisions about timeouts and bans stay with you.

Does it understand chat slang?

Rules check meaning, not single words. Paraphrases, abbreviations and typos are taken into account. Whatever it gets wrong, you correct with “False alarm”.

Does Veylark run next to Nightbot or Fossabot?

Yes. Veylark doesn't replace commands or timers, it adds topic moderation.

What data does Veylark store?

Messages are checked, not stored. Only messages with an action stay in your channel's log for 30 days.

12 veylark.tech, Issue 10/2026Letters 13

Set the rule. VeylarkBot reads the rest.

Start with Twitch

10,000 messages a month free. No credit card.