StepFun: Step 3.5 Flash

OpenRouterQuality: 65/100Unverified
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Overview

StepFun: Step 3.5 Flash is a capable model from OpenRouter with a 262K context window, supporting function calling. Priced at $0.000100/1K input, $0.000300/1K output.

ANT Routing Intelligence

Limited data

Total Requests

0

P50 Latency

480ms

P95 Latency

1500ms

Selection Rate

0.0%

of eligible requests

Intelligence Score

63/100

Quick Start

from openai import OpenAI

client = OpenAI(
    base_url="https://api.antbase.ai/v1",
    api_key="YOUR_ANT_API_KEY",
)

response = client.chat.completions.create(
    model="stepfun/step-3.5-flash",
    messages=[{"role": "user", "content": "Hello!"}]
)
print(response.choices[0].message.content)