Step 5 Preview
- Input price
- $1/ M tokens
- Output price
- $2.7/ M tokens
- Context window
- 977Ktokens
- Max output
- 63Ktokens
Step 5 Preview is StepFun's flagship model for coding, software engineering, and professional knowledge work. Its sparse MoE architecture uses 600B total and 27B active parameters, with a 1M-token context window and up to 64K output tokens. It accepts text, images, and video and supports tool calling, structured JSON output, three reasoning effort levels, streaming, and prompt caching.
Funktionen
Serverless API
stepfun/step-5-preview is available via Novita's serverless API, where you pay per token. There are several ways to call the API, including OpenAI-compatible endpoints with exceptional reasoning performance.
Verfügbare Serverless
Abfragen sofort ausführen, nur für die Nutzung bezahlen
API-Schlüssel erhalten
Registrieren Sie sich und erstellen Sie einen Schlüssel, um den Code unten auszuführen. Die API ist OpenAI-kompatibel.
Make your first request
The API is OpenAI-compatible: point any OpenAI SDK at the base URL and pass this model ID.
- Base URL
- https:/
/ api.novita.ai/ openaihttps:/ / api.novita.ai/ anthropic - Model ID
- stepfun/
step-5-preview - API Endpoint
- chat/
completions
1from openai import OpenAI 2 3client = OpenAI( 4 api_key="<Your API Key>", 5 base_url="https://api.novita.ai/openai" 6) 7 8response = client.chat.completions.create( 9 model="stepfun/step-5-preview", 10 messages=[ 11 {"role": "system", "content": "You are a helpful assistant."}, 12 {"role": "user", "content": "Hello, how are you?"} 13 ], 14 max_tokens=64000, 15 temperature=0.7 16) 17 18print(response.choices[0].message.content)