DeepSeek V4 Flash 0731 Fast API AI Agent

DeepSeek V4 Flash 0731 Fast Pricing

An AI agent workload (50K input + 5K output tokens, 100 tasks/day) costs approximately $23.62/month on Qubax.

Why use DeepSeek V4 Flash 0731 Fast for AI agents on Qubax?

• 🤖Autonomous agents that call APIs and external tools
• 🤖Multi-step reasoning for complex task completion
• 🤖Agent orchestration with LangChain, CrewAI, or custom frameworks
• 🤖Function calling for structured, reliable agent responses

About DeepSeek V4 Flash 0731 Fast

DeepSeek V4 Flash 0731 Fast is Venice’s low-latency serving profile for the 0731 DeepSeek V4 Flash checkpoint, with a 1M-token context window and reasoning, coding, tool, and structured-output support. It supports a 1M-token context window and up to 33K output tokens per request. Native capabilities include reasoning, tool calling, structured output, streaming. On Qubax it is served by 42 independent sellers, so pricing stays competitive and uptime stays high.

DeepSeek V4 Flash 0731 Fast AI Agent — code example

from openai import OpenAI
import json

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

tools = [{
    "type": "function",
    "function": {
        "name": "get_weather",
        "parameters": {"type": "object", "properties": {"city": {"type": "string"}}},
    },
}]

resp = client.chat.completions.create(
    model="deepseek-v4-flash-0731-fast",
    messages=[{"role": "user", "content": "What's the weather in Tokyo?"}],
    tools=tools,
)
call = resp.choices[0].message.tool_calls[0]
print(json.loads(call.function.arguments))  # -> {"city": "Tokyo"}

More DeepSeek models on Qubax

DeepSeek V4 Flash 0731 Fast AI Agent FAQ