Stepfun ai👁️ Vision
StepFun: Step3
Step3 is a cutting-edge multimodal reasoning model—built on a Mixture-of-Experts architecture with 321B total parameters and 38B active. It is designed end-to-end to minimize decoding costs while delivering top-tier performance in vision–language reasoning. Through the co-design of Multi-Matrix Factorization Attention (MFA) and Attention-FFN Disaggregation (AFD), Step3 maintains exceptional efficiency across both flagship and low-end accelerators.
OpenRouter 원가 (1M 토큰)
입력$0.570
출력$1.42
합계$1.99
인보이스랩 (월 예상)
입력 0.5M + 출력 0.5M 기준
공급가액₩1,638
부가세 (10%)₩164
결제 금액₩1,802
💡 부가세 ₩164 매입공제 가능
모델 정보
기본 정보
| 모델 ID | stepfun-ai/step3 |
| 제공사 | Stepfun ai |
| 컨텍스트 윈도우 | 65,536 토큰 |
| 모달리티 | text+image->text |
지원 기능
👁️ 이미지 분석⚡ Function Calling📋 Structured Output📄 JSON Mode🌡️ Temperature
API 사용법
Python (OpenAI SDK 호환)
from openai import OpenAI
client = OpenAI(
api_key="your-dream-api-key",
base_url="https://api.invoicedream.co.kr/v1"
)
response = client.chat.completions.create(
model="stepfun-ai/step3",
messages=[
{"role": "user", "content": "안녕하세요"}
]
)
print(response.choices[0].message.content)Node.js / TypeScript
import OpenAI from 'openai';
const client = new OpenAI({
apiKey: 'your-dream-api-key',
baseURL: 'https://api.invoicedream.co.kr/v1'
});
const response = await client.chat.completions.create({
model: 'stepfun-ai/step3',
messages: [{ role: 'user', content: '안녕하세요' }]
});
console.log(response.choices[0].message.content);cURL
curl https://api.invoicedream.co.kr/v1/chat/completions \
-H "Authorization: Bearer your-dream-api-key" \
-H "Content-Type: application/json" \
-d '{
"model": "stepfun-ai/step3",
"messages": [{"role": "user", "content": "안녕하세요"}]
}'💡 Tip: OpenAI SDK를 그대로 사용할 수 있습니다.base_url만 변경하면 됩니다!