Poe API

GPT-5

OpenAI’s most advanced general model with significantly improved coding skills, long context (400k tokens), and improved instruction following. Supports native vision, and generally has more intelligence than GPT-4.1. Provides a 90% chat history cache discount.

OFFICIAL

Build with GPT-5 using the Poe API

Start by creating an API key, for use with any bot on Poe:

Generate API key

Code samples

python

import openai

client = openai.OpenAI(
    api_key = "YOUR_POE_API_KEY",  # or os.getenv("POE_API_KEY")
    base_url = "https://api.poe.com/v1",
)

chat = client.chat.completions.create(
    model = "gpt-5",
    messages = [{
      "role": "user",
      "content": "How would you explain the process of photosynthesis to a 5-year-old?"
    }]
)

print(chat.choices[0].message.content)

See the full documentation for comprehensive guidance on getting started.