Poe API
o3
By
o3 provides state-of-the-art intelligence on a variety of tasks and domains, including science, math, and coding. This bot uses medium reasoning effort by default but low, medium & high are also selectable; supports 200k tokens of input context and 100k tokens of output context.
Optional parameters:
Set reasoning effort: Select from `low`, `medium`, `high`. Medium reasoning effort is set by default.
Powered by OpenAI: o3-2025-04-16. Learn more
- OFFICIAL
Build with o3 using the Poe API
Start by creating an API key, for use with any bot on Poe:
Use it in these apps
See allCode samples
Responses API
import openai
client = openai.OpenAI(
api_key = "YOUR_POE_API_KEY", # or os.getenv("POE_API_KEY")
base_url = "https://api.poe.com/v1",
)
response = client.responses.create(
model = "o3",
input = "A train leaves at noon, traveling 60 mph. One hour later, another train follows at 80 mph. After how many hours does the second train catch up?"
)
print(response.output_text)See the full documentation for comprehensive guidance on getting started.
More from OpenAI
GPT-5.4-Mini
GPT-5.4-Nano
GPT-5.4-Pro
GPT-5.3-Codex-Spark
GPT-5.3-Instant
GPT-5.4
GPT-5.3-Codex
GPT-5.2-Codex
GPT-Image-1.5
GPT-5.2-Pro







