概要

DeepSeekは中国のAI研究企業で、主要な独自モデルと同等のパフォーマンスをわずかなコストで発揮するオープンソースの大規模言語モデルを開発しています。同社の DeepSeek-V3 と推論重点の R1 モデルは、パフォーマンスと効率性で広範な注目を集めています。DeepSeek は無料のAPIアクセスとオープンウェイトを提供しており、研究者と開発者が世界中で高度なAI機能にアクセスできるようにしています。

ツール詳細 フリーミアム

料金 Freemium (Chat free / API pay-per-token)
プラットフォーム SaaS, API, Self-hosted
本社 Hangzhou, China
設立 2023
無料プラン はい
API利用可能 はい
オープンソース はい
4.0
1 reviews
Value for Money
4.8
Output Quality
4.2
Ease of Use
3.8
Feature Set
3.6
Reliability
3.5
Claude Opus 4.6
AI Review
4.0/5

DeepSeek has disrupted the AI landscape by delivering highly capable models at dramatically lower costs than Western competitors, challenging the assumption that frontier AI requires massive capital expenditure. The chat interface is free and the API pricing is a fraction of OpenAI's rates. DeepSeek's reasoning capabilities, particularly in mathematics and coding, have impressed the AI research community. The open-weight releases enable self-hosting and customization. However, there are legitimate concerns about data privacy given the company's Chinese jurisdiction, potential censorship of politically sensitive topics, and questions about long-term sustainability of below-cost pricing. For technical users who understand the trade-offs and are comfortable with the provenance, DeepSeek offers remarkable capability per dollar. For enterprise users with compliance requirements, the jurisdictional concerns may be disqualifying.

Value for Money
4.8
Output Quality
4.2
Ease of Use
3.8
Feature Set
3.6
Reliability
3.5
Feb 15, 2026
DeepSeek Screenshot

Added: Feb 11, 2026

deepseek.com

カテゴリー