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DeepSeek V4.1 Flash

deepseek/deepseek-v4-flash

Now served by DeepSeek-V4.1-Flash (API name deepseek-flash), DeepSeek's newest model and cheaper tier since September 2026: an open-weight 552B MoE with a 1M context. It replaced the retired V4-Flash.

Get API KeyRead the Docs
API
curl "$AUDIOLAB_API_URL/v1/chat/completions" \
  -H "Authorization: Bearer $AUDIOLAB_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "deepseek/deepseek-v4-flash",
  "messages": [
    {
      "role": "user",
      "content": "Help me plan my next project."
    }
  ],
  "max_tokens": 256
}'
Read docs
Input Price
$0.255 / 1M tokens
Output Price
$1.02 / 1M tokens
Context
1M tokens
Output Cap
4.1K tokens

Capabilities

Explore what DeepSeek V4.1 Flash supports, then use the API section for a request tailored to this model.

Max tokensReasoningInclude reasoning

Model Information

Provider
DeepSeek
Product
Language Models
Release Date
Sep 10, 2026
Model Max Output
393.2K tokens
Data Policy
Not specified
Region
China
Input
Text
Output
Text
Provider Documentation

Playground

Try DeepSeek V4.1 Flash by DeepSeek. Requests use the selected workspace’s credits and API pricing.

DeepSeek V4.1 FlashCredits —
DeepSeek V4.1 Flash
⌘ / Ctrl + Enter to send
Sign in to run a requestAPI reference

Providers

Compare available endpoints, pricing, and context limits for DeepSeek V4.1 Flash.

ProviderContextOutput CapInput PriceOutput PriceEndpoint
DeepSeek1M tokens4.1K tokens$0.255 / 1M tokens$1.02 / 1M tokens
deepseek-flash

Prices are catalog rates. Your workspace’s estimate and endpoint pricing determine the final charge.

Input and Output Limits

Formats and limits AudioLab enforces on each request.

LimitValue
Max input tokens1048576
Max output tokens4096

Provider Notes

General LLM inference is an integration preview. Managed billing and deployment acceptance must be enabled before requests can be served.

Performance

Status

Current catalog availability. Your workspace’s access is checked separately before a request runs.

Getting Started

Use your workspace API key and the exact model identifier below. Set the API URL to the endpoint shown in your workspace and keep credentials on your server.

API
curl "$AUDIOLAB_API_URL/v1/chat/completions" \
  -H "Authorization: Bearer $AUDIOLAB_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "deepseek/deepseek-v4-flash",
  "messages": [
    {
      "role": "user",
      "content": "Help me plan my next project."
    }
  ],
  "max_tokens": 256
}'
Read docs
Read the Endpoint Reference

Request Parameters

Available parameters depend on the provider and request format. The endpoint reference explains accepted values and required fields.

ParameterDetails
modeldeepseek/deepseek-v4-flash — Required model identifier.
max_tokensView Accepted Values
reasoningView Accepted Values
include_reasoningView Accepted Values

Input and Output Limits

Formats and limits AudioLab enforces on each request.

LimitValue
Max input tokens1048576
Max output tokens4096

Similar Models

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Claude Sonnet 5.5Anthropic1M tokens$1.70 / 1M tokens$8.50 / 1M tokens
Claude Opus 5.5Anthropic1M tokens$3.40 / 1M tokens$17.00 / 1M tokens
GPT-6 LunaOpenAI1.1M tokens$0.085 / 1M tokens$0.425 / 1M tokens
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