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DeepSeek: DeepSeek V3.1 Terminus

🇨🇳 DeepSeek · DeepSeek V3.1

Input Price $0.270 per million tokens NT$8.6
Output Price $0.950 per million tokens NT$30.4
Context Window 164K tokens Output limit: 33K
OpenRouter Route Price Please verify with official pricing pages
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Overview

DeepSeek: DeepSeek V3.1 Terminus is a large language model API from DeepSeek, part of its DeepSeek V3.1 model family. At $0.270 per million input tokens and $0.950 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. The 164K-token context window — around 246 pages of text — comfortably handles long documents, multi-file code, or extended conversations. On Artificial Analysis's Intelligence Index it scores 26 (C 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 $0.270 NT$8.6
Output per 1M tokens $0.950 NT$30.4
Cached Input per 1M tokens $0.130 NT$4.2

Provider
DeepSeek
Model Family
DeepSeek V3.1
Version String
deepseek/deepseek-v3.1-terminus
Status
Active
Modality
Text
Context Window
163,840 tokens
Output Limit
32,768 tokens

Index Metrics

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

Intelligence Index 26 C Measured: 2026-07-01

Benchmark Scores

Data source: Artificial Analysis

AA-LCR 65.0% B Measured: 2026-07-01
GPQA Diamond 79.2% A Measured: 2026-07-01
HLE 15.3% B Measured: 2026-07-01
IFBench 57.0% C Measured: 2026-07-01
Non-Hallucination 27.5% Measured: 2026-07-01
Omniscience Accuracy 27.9% Measured: 2026-07-01
SciCode 40.6% B Measured: 2026-07-01
Tau2 37.1% Measured: 2026-07-01
TerminalBench 30.3% Measured: 2026-07-01

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 $0.130 OpenRouter
Output $0.950 OpenRouter
Input $0.270 OpenRouter
Cached Input $0.130 OpenRouter
Output $0.950 OpenRouter
Input $0.270 OpenRouter
Cached Input $0.130 OpenRouter
Output $0.950 OpenRouter
Input $0.270 OpenRouter
Cached Input $0.130 OpenRouter
Output $0.950 OpenRouter
Input $0.270 OpenRouter
Cached Input $0.130 OpenRouter
Output $0.950 OpenRouter
Input $0.270 OpenRouter
Cached Input $0.130 OpenRouter
Output $0.950 OpenRouter
Input $0.270 OpenRouter
Cached Input $0.130 OpenRouter
Output $0.950 OpenRouter
Input $0.270 OpenRouter
Cached Input $0.130 OpenRouter
Output $0.950 OpenRouter
Input $0.270 OpenRouter
Cached Input $0.130 OpenRouter
Output $0.950 OpenRouter
Input $0.270 OpenRouter
Cached Input $0.130 OpenRouter
Output $0.950 OpenRouter
Input $0.270 OpenRouter
Cached Input $0.130 OpenRouter
Output $0.950 OpenRouter
Input $0.270 OpenRouter
Cached Input $0.130 OpenRouter
Output $0.950 OpenRouter
Input $0.270 OpenRouter
Cached Input $0.130 OpenRouter
Output $0.950 OpenRouter
Input $0.270 OpenRouter
Cached Input $0.130 OpenRouter
Output $0.950 OpenRouter
Input $0.270 OpenRouter
Cached Input $0.130 OpenRouter
Output $0.950 OpenRouter
Input $0.270 OpenRouter
Cached Input $0.130 OpenRouter
Output $0.950 OpenRouter
Input $0.270 OpenRouter
Cached Input $0.130 OpenRouter
Output $0.950 OpenRouter

Key Insights

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

  • DeepSeek: DeepSeek V3.1 Terminus Input price: $0.27/M tokens
  • DeepSeek: DeepSeek V3.1 Terminus Output price: $0.95/M tokens
  • Context window: 163,840 tokens
  • Provider: DeepSeek
  • Model family: DeepSeek V3.1
  • Modalities: Text
  • Data source: OpenRouter, updated daily