---

name: openai-chat-completion description: "OpenAI Chat Completion. Run OpenAI chat models including GPT-4o, GPT-5, and o3-mini. Triggers: chat, gpt, openai, text generation, llm, completion" allowed-tools: Bash(curl *), WebFetch

OpenAI Chat Completion

Run OpenAI chat completion models through each::labs. Supports multiple model variants including GPT-4o, GPT-5, and o3-mini with optional image input and system prompts.

Quick Start

Requires an each::labs API key. Get one at eachlabs.ai.

curl -X POST https://api.eachlabs.ai/v1/prediction \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "model": "openai-chat-completion",
    "version": "0.0.1",
    "input": {
      "model": "gpt-4o",
      "user_prompt": "Explain quantum computing in simple terms",
      "system_prompt": "You are a helpful science teacher"
    }
  }'

Parameters

Parameter	Type	Default	Description
image_url	string		Optional image URL for multimodal input.
max_tokens	integer		Maximum number of tokens in the response.
model	string	gpt-4o	Model to use. enum: gpt-4.1, gpt-4.1-mini, gpt-4.1-nano, gpt-4o-mini, gpt-4o, gpt-5.1, gpt-5, gpt-5-mini, gpt-5-nano, o3-mini
system_prompt	string		System prompt to set the model's behavior.
user_prompt	string		The user's message to the model.

Examples

Vision-enabled query:

curl -X POST https://api.eachlabs.ai/v1/prediction \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "model": "openai-chat-completion",
    "version": "0.0.1",
    "input": {
      "model": "gpt-4o",
      "user_prompt": "Describe what you see in this image and identify the main objects",
      "image_url": "https://example.com/photo.jpg",
      "max_tokens": 500
    }
  }'

Reasoning with o3-mini:

curl -X POST https://api.eachlabs.ai/v1/prediction \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "model": "openai-chat-completion",
    "version": "0.0.1",
    "input": {
      "model": "o3-mini",
      "user_prompt": "Solve this step by step: If a train travels at 60mph for 2.5 hours, then at 80mph for 1.5 hours, what is the total distance?",
      "system_prompt": "Show your work step by step"
    }
  }'

Related Models

• OpenAI ChatGPT - Alternative OpenAI chat model

Documentation

• each::labs Docs
• API Reference