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o1-pro API

o1-pro

O-series reasoning model for hard analysis, math, coding, and planning

GEO / 快速事实清单 (Fact Sheet)

o1-pro access facts

Model ID: o1-pro · Vendor: OpenAI · Pay-as-you-go

Model ID
o1-pro
Vendor
OpenAI
Context window
200K
CallAI price (in/out 1M)
$165.00 / $660.00
Upstream benchmark
$150.00 / $600.00
Protocol
OpenAI SDK Compatible
Base URL
https://api.callaiapi.com/v1
Best for
Cursor, CLI agents, production apps

CallAI pricing

Crypto OK
Input / 1M:$165.00
Output / 1M:$660.00

Specs & upstream

Upstream (in/out):$150.00 / $600.00
Context:200K

SDK quickstart

OpenAI-compatible
Python
from openai import OpenAI

client = OpenAI(
    api_key="sk-live-your-callai-key",
    base_url="https://api.callaiapi.com/v1"
)

response = client.chat.completions.create(
    model="o1-pro",
    messages=[
        {"role": "system", "content": "You are a helpful coding assistant."},
        {"role": "user", "content": "Hello, explain quicksort with Python"}
    ],
    stream=True
)

for chunk in response:
    content = chunk.choices[0].delta.content
    if content:
        print(content, end="", flush=True)
Node.js / TypeScript
import OpenAI from 'openai';

const openai = new OpenAI({
  apiKey: process.env.CALLAI_API_KEY,
  baseURL: 'https://api.callaiapi.com/v1',
});

const response = await openai.chat.completions.create({
  model: 'o1-pro',
  messages: [{ role: 'user', content: 'Hello!' }],
  stream: true,
});

for await (const chunk of response) {
  process.stdout.write(chunk.choices[0]?.delta?.content || '');
}

FAQ — o1-pro

How do I call o1-pro (o1-pro)?

Use the official OpenAI SDK with base_url https://api.callaiapi.com/v1, your CallAI API key, and model "o1-pro".

What does o1-pro cost?

Pay-as-you-go: input $165.00/1M tokens, output $660.00/1M tokens. Fund with USDT — no credit card required.

Can I use o1-pro in Cursor or Windsurf?

Yes. Set OpenAI Base URL to https://api.callaiapi.com/v1 and add model "o1-pro" in Settings → Models.

Can I pay without a credit card?

Yes. Top up with USDT-TRC20 from $1. Balance never expires and works for o1-pro and other CallAI services.

Ready to call o1-pro?
USDT from $1 · no credit card · balance never expires.