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OpenAI + Slack: AI teammate in every channel.

Build GPT-powered Slack bots — answer questions, summarize threads, draft responses, triage requests. The most natural fit for AI in chat-first teams.

Trigger app
Slack as the trigger

Workflows fire when something happens in Slack.

See all 13 triggers →
Action app
OpenAI as the action

Workflows do something in OpenAI, instantly.

See all 16 actions →
Both directions

Pick the way that fits your stack.

Pair pages are mirrored. Each direction gets its own dedicated page.

SlackOpenAI

When something happens in Slack, do it in OpenAI.

13 Slack triggers wired to 16 OpenAI actions. Most-used pairing: App Home OpenedAnalyze Image.

OpenAISlack

Or fire it the other way around.

0 OpenAI triggers wired to 45 Slack actions downstream.

  • Use any trigger in the catalog as the upstream.
See OpenAISlack
Popular pairings

Common Slack → OpenAI workflows.

Pick a pairing to set it up in two minutes. Each one is a fully editable recipe.

Showing 9 of 208 combinations
When app home opened in Slack, analyze image in OpenAI.

Fires when a user opens your Slack app's Home tab or DM. Useful for refreshing the Home view, lazy-loading user-specific data, or tracking app engagement.

When app home opened in Slack, chat completion in OpenAI.

Fires when a user opens your Slack app's Home tab or DM. Useful for refreshing the Home view, lazy-loading user-specific data, or tracking app engagement.

When app home opened in Slack, chat with tools in OpenAI.

Fires when a user opens your Slack app's Home tab or DM. Useful for refreshing the Home view, lazy-loading user-specific data, or tracking app engagement.

When app home opened in Slack, create batch in OpenAI.

Fires when a user opens your Slack app's Home tab or DM. Useful for refreshing the Home view, lazy-loading user-specific data, or tracking app engagement.

When app mentioned in Slack, analyze image in OpenAI.

Fires when your Slack app is mentioned in a message. The standard hook for chatbots that answer when summoned with @your-app.

When app mentioned in Slack, chat completion in OpenAI.

Fires when your Slack app is mentioned in a message. The standard hook for chatbots that answer when summoned with @your-app.

When app mentioned in Slack, chat with tools in OpenAI.

Fires when your Slack app is mentioned in a message. The standard hook for chatbots that answer when summoned with @your-app.

When app mentioned in Slack, create batch in OpenAI.

Fires when your Slack app is mentioned in a message. The standard hook for chatbots that answer when summoned with @your-app.

When new channel in Slack, analyze image in OpenAI.

Fires when a new Slack channel is created in the workspace. Useful for auto-adding the bot, welcome messages, or governance audit logs.

How it works

Connect Slack and OpenAI in five steps.

No code, no glue, no half-day setup. Each step is one click.

  1. 1
    Connect
    Authorize Slack and OpenAI

    Open Tiny Command, authorize Slack and OpenAI once each. Both connections are available to every workflow on your account.

  2. 2
    Trigger
    Pick a Slack trigger

    Drop the Slack → App Home Opened trigger onto the canvas. Tiny Command auto-registers the webhook.

    POST /v1/webhooks/slack.trigger-app-home-opened
  3. 3
    Transform
    Add a filter or AI step

    Optionally add a Filter node ("subject contains URGENT") or an AI step ("classify intent") between trigger and action.

  4. 4
    Action
    Add the OpenAI action

    Drop the OpenAI → Analyze Image action below it. Map fields from the Slack payload into the OpenAI inputs.

    openai.analyze-image
  5. 5
    Publish
    Publish and forget

    Hit Publish. Tiny Command runs it in production from second one. Watch the run-log fill up.

FAQ

Questions about Slack + OpenAI.

How do I build a GPT bot in Slack?
Slack App Mentioned → fetch recent channel history → OpenAI Chat Completion → Slack Reply in Thread. Bot answers when @-mentioned in channels it's in.
Can GPT summarize Slack threads?
Yes. Slash command /summarize → Get Thread Replies → OpenAI summarizes → reply as ephemeral message visible only to requester.
How do I give GPT internal-doc knowledge (RAG)?
Index Notion/Confluence/Drive into vector store. On question, retrieve top-3 docs, pass to GPT as context with "answer only from these". Cite sources in reply.
Can GPT triage support requests in #help channels?
Yes. New message in #help → OpenAI classifies (urgency + team) → either answer if confident, or @-mention the right team with summary. Async-team time-saver.
How do I avoid GPT responding to bot messages?
Filter Slack trigger to skip messages with subtype = "bot_message" and skip own bot user. Otherwise the bot loops on its output indefinitely.
Can I use GPT tool-calling to take actions from Slack?
Yes. Define tools (create_jira_issue, search_docs, update_record). GPT decides which to call based on user message. Workflow executes calls + feeds results back.
Related

Other apps that pair well with Slack.


Wire Slack to OpenAI in 2 minutes.

Free tier available. No credit card. No onboarding call.