ActionAI21 LabsUpdated September 2026

How do I call AI21 Jamba for chat completion?

Short answer: You can chat completion in AI21 Labs by hand from its own interface, but it won’t repeat itself. On TinyCommand, add the AI21 Labs Chat Completion action to a workflow, map its 5 inputs from any upstream app, and it runs automatically every time the trigger fires. No code, and a free tier to start.

Chat Completion in AI21 Labs — start free All 2 AI21 Labs actions

Chat Completion in AI21 Labs — start free

Inputs

The fields this action accepts.

Every field can be mapped from an upstream trigger, AI step, table row, or hard-coded literal.

Field	Type	Required	Description
Model model	options	Required	Which model to use
User Message message	string	Required	Message sent to the model as user role
System Prompt system_prompt	string	Optional	Optional system instructions
Temperature temperature	string	Optional	0-2, higher = more random
Max Tokens max_tokens	string	Optional	Maximum tokens to generate

Sample request

{
  "model": "{{trigger.model}}",
  "message": "Your prompt",
  "system_prompt": "e.g. You are a helpful assistant",
  "temperature": "0.7",
  "max_tokens": "1024"
}

Returns

{
  "id": "chatcmpl_abc",
  "model": "jamba-1.5-large",
  "usage": {
    "total_tokens": 60,
    "prompt_tokens": 10,
    "completion_tokens": 50
  },
  "choices": [
    {
      "message": {
        "role": "assistant",
        "content": "Sample"
      },
      "finish_reason": "stop"
    }
  ]
}

Use these fields in downstream nodes for routing, logging, or error handling.

Triggered by

Apps that pair well as the trigger for Chat Completion.

Any of these apps can fire this action as part of a workflow.

Google Sheets → AI21 Labs

2 Google Sheets triggers

HubSpot → AI21 Labs

18 HubSpot triggers

FAQ

Questions about Chat Completion.

What does the Chat Completion action do in AI21 Labs?

Runs a chat completion against AI21's Jamba models using the OpenAI-compatible message-array shape. Jamba's hybrid Mamba-Transformer architecture handles 256k-token context efficiently, which is where it wins over GPT-4-class on long-document workflows.

What inputs does Chat Completion require?

Required: Model, User Message. Every input accepts a static value or a variable from any upstream node in your workflow.

Can I use dynamic inputs from earlier workflow nodes?

Yes. Any field on this action can pull values from upstream nodes, whether that's a form response, a trigger payload, an AI output, or a lookup result.

What happens if AI21 Labs returns an error?

The run history shows the failed step with its input and the error message AI21 Labs returned, so you can fix the input and run the workflow again. Automatic retries are built into HTTP steps only, where you can also set your own retry count and delay.

Does Chat Completion support batch operations?

Run Chat Completion inside a loop to process each item in an array. TinyCommand does not throttle calls for you, so for large arrays add a Delay step if you need to stay within AI21 Labs's rate limits.

More actions

Other AI21 Labs actions.

Action

List Models

Returns the current AI21 model catalog with context windows and pricing per model. Pin specific versions for reproducible production workflows; latest aliases float as AI21 ships new model generations.

Chat Completion in AI21 Labs — start free