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DeepSeek: DeepSeek V4.1 Flash

🇨🇳 DeepSeek · DeepSeek V4.1

Input Price $0.150 per million tokens NT$4.8
Output Price $0.600 per million tokens NT$19.2
Context Window 1.05M tokens Output limit: 393K
OpenRouter Route Price Please verify with official pricing pages
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Overview

DeepSeek: DeepSeek V4.1 Flash is a large language model API from DeepSeek, part of its DeepSeek V4.1 model family. At $0.150 per million input tokens and $0.600 per million output tokens, it sits in the budget tier — among the cheaper options for high-throughput or cost-sensitive workloads. Output tokens cost about 4× as much as input, so prompt-heavy workloads run noticeably cheaper than generation-heavy ones. An exceptionally large 1.05M-token context window (≈1,573 pages of text) means entire repositories or document collections can be processed without chunking. Beyond plain text it also accepts Image input, so it can be applied to multimodal tasks rather than text alone. On Artificial Analysis's Intelligence Index it scores 39 (B grade), a useful proxy for its general reasoning strength relative to the other models tracked here. All prices on this page reflect OpenRouter's routed rates and are re-synced automatically every day; confirm against the provider's official pricing before committing to production.

Dimension Unit Price (USD) Price (TWD) Effective From
Input per 1M tokens $0.150 NT$4.8
Output per 1M tokens $0.600 NT$19.2
Cached Input per 1M tokens $0.0030 NT$0.10

Provider
DeepSeek
Model Family
DeepSeek V4.1
Version String
deepseek/deepseek-v4.1-flash
Status
Active
Modality
Text, Image
Context Window
1,048,576 tokens
Output Limit
393,216 tokens

Index Metrics

Cross-domain capability indexes evaluated by Artificial Analysis — Artificial Analysis

Intelligence Index 39 B Measured: 2026-10-16

Benchmark Scores

Data source: Artificial Analysis

AA-LCR 84.0% A Measured: 2026-10-16
MMMU Pro 77.0% A Measured: 2026-10-16
Non-Hallucination 3.5% Measured: 2026-10-16
Omniscience Accuracy 46.4% Measured: 2026-10-16
SciCode 51.8% A Measured: 2026-10-16

Performance Metrics

Real-world benchmarks, updated every 72 hours by Artificial Analysis — Artificial Analysis

First Token Latency 1.2s Measured: 2026-10-16
Output Speed 180 t/s Measured: 2026-10-16
Response Time 15.1s Measured: 2026-10-16

90-Day Price Trend

Input / Output price (USD per 1M tokens)

Past 90 days of records; every price change is shown here

Date Dimension Price (USD) Source
Cached Input $0.0030 OpenRouter
Output $0.600 OpenRouter
Input $0.150 OpenRouter
Cached Input $0.0030 OpenRouter
Output $0.600 OpenRouter
Input $0.150 OpenRouter
Cached Input $0.0030 OpenRouter
Output $0.600 OpenRouter
Input $0.150 OpenRouter
Cached Input $0.0030 OpenRouter
Output $0.600 OpenRouter
Input $0.150 OpenRouter
Cached Input $0.0030 OpenRouter
Output $0.600 OpenRouter
Input $0.150 OpenRouter
Cached Input $0.0030 OpenRouter
Output $0.600 OpenRouter
Input $0.150 OpenRouter
Cached Input $0.0030 OpenRouter
Output $0.600 OpenRouter
Input $0.150 OpenRouter
Cached Input $0.0030 OpenRouter
Output $0.600 OpenRouter
Input $0.150 OpenRouter
Cached Input $0.0030 OpenRouter
Output $0.600 OpenRouter
Input $0.150 OpenRouter
Cached Input $0.0030 OpenRouter
Output $0.600 OpenRouter
Input $0.150 OpenRouter
Cached Input $0.0030 OpenRouter
Output $0.600 OpenRouter
Input $0.150 OpenRouter
Cached Input $0.0030 OpenRouter
Output $0.600 OpenRouter
Input $0.150 OpenRouter
Cached Input $0.0060 OpenRouter
Output $1.20 OpenRouter
Input $0.300 OpenRouter
Cached Input $0.017 OpenRouter
Output $1.32 OpenRouter
Input $0.018 OpenRouter
Cached Input $0.0060 OpenRouter
Output $1.20 OpenRouter
Input $0.300 OpenRouter
Cached Input $0.0060 OpenRouter
Output $1.20 OpenRouter
Input $0.300 OpenRouter
Cached Input $0.0030 OpenRouter
Output $2.40 OpenRouter

Key Insights

Key data points from this page for quick reference and citation.

  • DeepSeek: DeepSeek V4.1 Flash Input price: $0.15/M tokens
  • DeepSeek: DeepSeek V4.1 Flash Output price: $0.6/M tokens
  • Context window: 1,048,576 tokens
  • Provider: DeepSeek
  • Model family: DeepSeek V4.1
  • Modalities: Text, Image
  • Data source: OpenRouter, updated daily