LLM API
DeepSeekText generationReleased April 25, 2026

DeepSeek V4 Flash (Apr 23)

DeepSeek V4 Flash (Apr 23) costs $0.19 per 1M input tokens and $0.51 per 1M output tokens on LLM API, with a 1.05M-token context window.

Pricing

Served by Azure, the only provider.

DeepSeek V4 Flash (Apr 23) prices on LLM API
Input$0.19per 1M tokens
Output$0.51per 1M tokens
Cache read$0.028per 1M tokens

Features

  • ToolsYes
  • Parallel tool callsNo
  • Image inputNo
  • ReasoningYes
  • Prompt cachingYes
  • Structured outputsNo
  • JSON modeYes
  • StreamingYes
  • Web searchYes

Call DeepSeek V4 Flash (Apr 23)

POST /v1/chat/completionsSet LLMAPI_KEY to your LLM API key.Chat Completions docs

import os

from openai import OpenAI

client = OpenAI(
    base_url="https://api.llmapi.ai/v1",
    api_key=os.environ["LLMAPI_KEY"],
)

response = client.chat.completions.create(
    model="deepseek-v4-flash",
    messages=[{"role": "user", "content": "Hello"}],
)
print(response.choices[0].message.content)

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