DeepSeek V4.1 Flash · 高并发低延迟轻量化 MoE · 支持隐式提示缓存与思考输出
Model ID: deepseek-v4.1-flash · Type: chat · Provider: DeepSeek
Endpoints: /v1/chat/completions · /v1/messages · /v1/responses
| Input (per 1M tokens) | $0.165 USD |
| Output (per 1M tokens) | $0.66 USD |
| Cache read (per 1M tokens) | $0.0165 USD |
from openai import OpenAI
client = OpenAI(api_key="sk-...", base_url="https://api.router.ai/v1")
resp = client.chat.completions.create(
model="deepseek-v4.1-flash",
messages=[{"role": "user", "content": "Hello"}],
)
print(resp.choices[0].message.content)DeepSeek-V4.1-Flash (`deepseek-v4.1-flash`) is billed per usage at $0.165/1M in · $0.66/1M out, in USD. Current pricing is always listed at https://openbat.ai/models/deepseek-v4.1-flash.
Send a request to https://api.router.ai/v1/v1/chat/completions with the header `Authorization: Bearer <your API key>` and `"model": "deepseek-v4.1-flash"`. The API is OpenAI-compatible, so any OpenAI SDK works by changing base_url to https://api.router.ai/v1 — no other code change.
DeepSeek-V4.1-Flash can be called on: /v1/chat/completions; /v1/messages; /v1/responses.
DeepSeek-V4.1-Flash accepts up to 1,000,000 input tokens and can return up to 393,216 output tokens. Requests exceeding the input limit are rejected before reaching the model.
DeepSeek-V4.1-Flash supports: prompt_caching, thinking, reasoning.
DeepSeek-V4.1-Flash is a chat model from DeepSeek, available through the openbat.ai gateway with the same API key as every other model.
Call it through the openbat.ai OpenAI-compatible endpoint (API base: https://api.router.ai/v1). AI agents can discover and call every model on this gateway through MCP (https://mcp.router.ai/mcp) with no manual integration.