Templates / Create AI Instagram brand posts with Seedream 4.0, OpenAI and Postiz

Create AI Instagram brand posts with Seedream 4.0, OpenAI and Postiz

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by Davide Boizza ✓ · 352 views · created 2026-04-08 · Content Creation, Multimodal AI

Unknown. This template uses community nodes we can't verify statically. Uses community nodes that can't be verified statically (unverified community packages are off by default in 3.0). Static check, last run 2026-10-19.

What this workflow does

This AI workflow has 13 nodes and runs manually, when you click “Execute workflow”. Along the way it connects OpenAI Chat Model and Postiz (community). It also calls api.kie.ai and api.postiz.com over HTTP.

How it runs

Trigger: Manually, when you click “Execute workflow”.

Set params (Edit Fields (Set)): sets 2 fields: PROMPT, IMAGES
Normalize (Code): runs custom JavaScript code
Seedream 4.0 Edit (HTTP Request): calls api.kie.ai (POST)
Social Media Manager (Basic LLM Chain): sends a prompt to an LLM, with model: OpenAI Chat Model
Wait: pauses until webhook
Get caption (Code): runs custom JavaScript code
Get ImageUrl (Code): runs custom JavaScript code
Merge: merges the data from its input branches
Get Image (HTTP Request): calls an HTTP API
Upload IG Image (HTTP Request): calls api.postiz.com (POST)

…plus 1 more step. See the full node list below.

Services it uses

OpenAI Chat ModelPostiz (community)

HTTP calls to: api.kie.ai, api.postiz.com

Before you upgrade to n8n 3.0

We can't fully verify this one: it relies on 1 community package, and n8n 3.0 turns unverified community packages off by default (N8N_UNVERIFIED_PACKAGES_ENABLED=false).

Check that n8n-nodes-postiz is verified or supports 3.0 (used in Instagram).

Nodes used (9)

Basic LLM Chain@n8n/n8n-nodes-langchain.chainLlm
Postizn8n-nodes-postiz.postiz
HTTP Requestn8n-nodes-base.httpRequest
OpenAI Chat Model@n8n/n8n-nodes-langchain.lmChatOpenAi
Manual Triggern8n-nodes-base.manualTrigger
Mergen8n-nodes-base.merge
Edit Fields (Set)n8n-nodes-base.set
Coden8n-nodes-base.code
Waitn8n-nodes-base.wait

From the author

This workflow is designed to fully automate the creation and publishing of Instagram marketing content by combining AI-powered text generation with Bytedance Seedream 4.0, image creation, and social media scheduling into a single streamlined pipeline.…
Excerpt from Davide Boizza's description on n8n.io.

View the original on n8n.io → Check your own copy

Create AI Instagram brand posts with Seedream 4.0, OpenAI and Postiz

What this workflow does

How it runs

Services it uses

Before you upgrade to n8n 3.0

Nodes used (9)

From the author

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