DeepSeek-V4 と R1 を中核とし、極めて低いトークンコストで提供される高効率なオープンウェイト/ホスト型推論 AI。
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Code Arena は月間 35,827,928 訪問、前月比成長率 +19.4%、料金体系 無料 を記録しています。Studyflash は月間 95,463 訪問、成長率 -11.4%、料金体系 フリーミアム を記録しています。

Studyflash is an AI study app that turns your own lecture slides, PDFs and notes into flashcards, quizzes, summaries, mind maps, podcasts and graded practice exams. Its AI tutor, Max, explains concepts from your uploaded sources and schedules reviews so you walk into the exam prepared.
| 項目 / 指標 | ![]() | ![]() |
|---|---|---|
| 公式ドメイン | arena.ai | studyflash.ai |
| 料金モデル | 無料 | フリーミアム |
| 月間訪問数 | 3582.79万 (35,827,928) | 9.55万 (95,463) |
| 前月比トラフィック増減 | +583.28万 (+19.4%) | -1.22万 (-11.4%) |
| 主要市場とシェア | 🇮🇳 インド (13.1%) | 🇧🇪 ベルギー (34.5%) |
| 月間ダイレクト訪問数 | 2433.99万 | 5.83万 |
| ユーザー評価 | 4.7 | 4.4 |
| 対応プラットフォーム | ウェブサイト | ウェブサイト |

Code Arena is a hands-on playground and leaderboard where you can pit leading AI coding models against each other on real web builds, comparing speed, accuracy, and logic in live side-by-side battles.
Send the same coding prompt to multiple leading models and compare their generated apps and logic side by side.
Watch models construct web apps and websites live, so you can see process and output, not just the final file.
Projects go beyond one-off snippets, testing how well a model structures components, routes, and styles together.
Track which coding models accumulate the most wins over time to identify consistently strong performers.

Studyflash is an AI study app that turns your own lecture slides, PDFs and notes into flashcards, quizzes, summaries, mind maps, podcasts and graded practice exams. Its AI tutor, Max, explains concepts from your uploaded sources and schedules reviews so you walk into the exam prepared.
Upload a lecture PDF, slides or notes and get flashcards, quizzes, summaries, mind maps, podcasts and practice exams generated in minutes.
Each card is scheduled based on how well you remembered it, so you review exactly what you are about to forget before exam day.
Max answers only from your uploaded sources and cites the passage each answer comes from, so you can verify every explanation.
Run timed, graded mock exams that can be modelled on a past exam you upload, so practice matches the real thing.
DeepSeek-V4 と R1 を中核とし、極めて低いトークンコストで提供される高効率なオープンウェイト/ホスト型推論 AI。

Studocu is a global study platform where students share and access lecture notes, summaries, study guides and past exams, with an AI assistant, quizzes, flashcards and note tools to help them learn faster.
Studocu is a global study platform where students share and access lecture notes, summaries, study guides and past exams, with an AI assistant, quizzes, flashcards and note tools to help them learn faster.

Alibaba Cloud の第4世代基盤モデルファミリー&マルチモーダルAIアシスタント — Qwen 4 (Qwen4)、Qwen4-Max、Qwen4-Plus、Qwen4-Flash、Qwen4-27B、Qwen 3.8-Flash-Next アーキテクチャ搭載
Alibaba Cloud の第4世代基盤モデルファミリー&マルチモーダルAIアシスタント — Qwen 4 (Qwen4)、Qwen4-Max、Qwen4-Plus、Qwen4-Flash、Qwen4-27B、Qwen 3.8-Flash-Next アーキテクチャ搭載
Perchance is a free platform for building and sharing random generators. Using a simple list-based syntax mixed with HTML, CSS and JavaScript, anyone can create tools like name generators, story prompts, character creators, randomizers and small AI-powered apps, then publish them for others to use.
Perchance is a free platform for building and sharing random generators. Using a simple list-based syntax mixed with HTML, CSS and JavaScript, anyone can create tools like name generators, story prompts, character creators, randomizers and small AI-powered apps, then publish them for others to use.
野心的なソフトウェアをつくるAIコーディングエージェント
言葉で説明するだけで動くアプリ・サイト・AIエージェントを構築
ノートとPDFを中毒性のあるAI暗記カードに変える学習アプリ
Knowt is a free study platform and the most popular Quizlet alternative, combining flashcards, note-taking, and AI study tools. Students can turn PDFs, lecture recordings, slides, and videos into flashcards, notes, and practice tests automatically.
Knowt is a free study platform and the most popular Quizlet alternative, combining flashcards, note-taking, and AI study tools. Students can turn PDFs, lecture recordings, slides, and videos into flashcards, notes, and practice tests automatically.