DeepSeek V4.1 Flash (EU) API
About
Build advanced reasoning agents with DeepSeek V4.1 Flash (EU), a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $0.50/1M input and $1.50/1M output tokens, native tool calling support, open weights architecture. Access DeepSeek V4.1 Flash (EU) via the Requesty API with up to 393K output tokens.
Capabilities
Input Modalities
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Output Modalities
text
Reasoning
Yes
Structured Output
Limits
Context Window
1.0M
Tokens
Input Limit
1.0M
Tokens
Max Output
393K
Tokens
Pricing
Standard (per 1M tokens)
Input
$0.50
Output
$1.50
Caching (per 1M tokens)
Read
$0.05
Frequently Asked Questions
DeepSeek V4.1 Flash (EU) by Requesty costs $0.50 per 1M input tokens and $1.50 per 1M output tokens. Cached reads cost $0.05 per 1M tokens.
Model Details
ID
deepseek-v4.1-flash@eu
Provider
RequestyFamily
deepseek-flash
Release Date
Sep 10, 2026
Knowledge Cutoff
May 1, 2025
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
REQUESTY_API_KEY
API Base URL
https://router.requesty.ai/v1