AI Rate Card

step-5-preview-el · poe

Step 5 Preview is StepFun's frontier reasoning model. It accepts text, image, and video input with a 1M token context, and supports parallel function calling, strict JSON Schema structured output, and adjustable reasoning effort. This bot supports optional parameters for additional customization.

Base modelAll models on this baseAll models of the providerto the provider

Input, $/1M $1.01

Output, $/1M $2.73

Cache read $0.0505

Cache write —

Context 1 024 000

Accepts images, text, video

Last checked 04.11.2026 12:00:14 UTC

Source provider's page

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API

OpenAI-compatible API: the official OpenAI SDKs work with this base URL. Replace YOUR_API_KEY with your key from the provider.

API base URL
https://api.poe.com/v1
Endpoint
https://api.poe.com/v1/chat/completions
Model id
step-5-preview-el
curl
curl https://api.poe.com/v1/chat/completions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "step-5-preview-el", "messages": [{"role": "user", "content": "Hello!"}], "max_tokens": 256}'
Python
import requests

r = requests.post(
    "https://api.poe.com/v1/chat/completions",
    headers={"Authorization": "Bearer YOUR_API_KEY"},
    json={
      "model": "step-5-preview-el",
      "messages": [
        {
          "role": "user",
          "content": "Hello!"
        }
      ],
      "max_tokens": 256
    },
)
print(r.json())
JavaScript
const r = await fetch("https://api.poe.com/v1/chat/completions", {
  method: "POST",
  headers: {Authorization: "Bearer YOUR_API_KEY", "Content-Type": "application/json"},
  body: JSON.stringify({
    "model": "step-5-preview-el",
    "messages": [
      {
        "role": "user",
        "content": "Hello!"
      }
    ],
    "max_tokens": 256
  }),
});
console.log(await r.json());
Request (JSON)
{
  "model": "step-5-preview-el",
  "messages": [
    {
      "role": "user",
      "content": "Hello!"
    }
  ],
  "max_tokens": 256
}
Response (JSON)
{
  "id": "chatcmpl-...",
  "object": "chat.completion",
  "model": "step-5-preview-el",
  "choices": [
    {
      "index": 0,
      "message": {
        "role": "assistant",
        "content": "Hi! How can I help?"
      },
      "finish_reason": "stop"
    }
  ],
  "usage": {
    "prompt_tokens": 9,
    "completion_tokens": 12,
    "total_tokens": 21
  }
}

The address is taken from the provider's model list; check it against the provider's documentation.

Provider's API documentation

Source: AI Rate Card, https://airatecard.com/en/c/offer%3Apoe%7Cstep-5-preview-el, prices checked 2026-11-04; seller's page: https://poe.com/step-5-preview-el

Technical details

ID: offer:poe|step-5-preview-el