DeepSeek V4.1 Flash (sciforium) API
About
Build advanced reasoning agents with DeepSeek V4.1 Flash (sciforium), a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $0.25/1M input and $0.94/1M output tokens, native tool calling support, open weights architecture. Access DeepSeek V4.1 Flash (sciforium) via the LLM Gateway API with up to 384K output tokens.
Capabilities
Input Modalities
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Output Modalities
text
Reasoning
Yes
Limits
Context Window
1.0M
Tokens
Input Limit
1.0M
Tokens
Max Output
384K
Tokens
Pricing
Standard (per 1M tokens)
Input
$0.25
Output
$0.94
Caching (per 1M tokens)
Read
$0.01
Frequently Asked Questions
DeepSeek V4.1 Flash (sciforium) by LLM Gateway costs $0.25 per 1M input tokens and $0.94 per 1M output tokens. Cached reads cost $0.01 per 1M tokens.
Model Details
ID
sciforium/deepseek-v4.1-flash
Provider
LLM GatewayFamily
deepseek-flash
Release Date
Sep 10, 2026
Knowledge Cutoff
May 1, 2025
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
LLMGATEWAY_API_KEY
API Base URL
https://api.llmgateway.io/v1