ChatGPT

認証済み ★ 注目

The AI assistant that started the conversational AI revolution

AI アシスタント

8.9 /10

フリーミアム

ウェブサイトへ

リリース

2022-11

国

United States

API

あり

自己ホスト

いいえ

月間アクティブユーザー

800M+

資金調達

Private

最終レビュー

2025-06

について ChatGPT

ChatGPT is OpenAI's flagship conversational AI assistant and the product that brought large language models to mainstream awareness. It supports text, voice, and image input, generates images via DALL·E/GPT image, browses the web for current information, executes Python in an integrated data-analysis sandbox, and builds custom mini-applications (GPTs). Powered by the GPT-4o / GPT-5 model family, ChatGPT is used for everything from writing and research to coding assistance and creative work, with hundreds of millions of weekly active users.

編集部の評価

The benchmark by which all other AI assistants are measured — unmatched versatility and reach, though power users may outgrow it for specialized tasks.

機能

Multimodal input (text/image/voice)

Web browsing

Code execution

Image generation

Custom GPTs

File & data analysis

詳細評価

使いやすさ

10.0

コストパフォーマンス

8.0

機能

9.0

サポート

8.0

パフォーマンス

9.0

総合評価

8.9 /10

メリット・デメリット

メリット

Largest user base and ecosystem
Excellent multimodal capabilities
Constant rapid iteration
Huge library of custom GPTs

デメリット

Best models behind paywall
Can hallucinate facts
Free tier has strict usage limits

ユースケース

Writing & editingResearchCoding helpBrainstormingData analysis

こんな人におすすめ

Anyone who wants a versatile general-purpose AI assistant for writing, research, coding help, and everyday questions

#chatbot#general-assistant#openai#gpt#multimodal#web-search

料金プラン

Free

Access to base models
Limited messages
Standard response speed
Web access (limited)

Plus

$20 /month

GPT-4o & newer models
Higher message limits
Image generation
Custom GPTs
Advanced data analysis

Pro

$200 /month

Unlimited access to pro models
Pro mode for compute-heavy tasks
Priority access to new features

Team

$25 /user/month

Shared workspace
Higher message caps
Admin console
No training on your data

よくある質問

Is ChatGPT free to use?

Yes, ChatGPT has a free tier with limited access to advanced models. ChatGPT Plus ($20/month) unlocks GPT-4o, higher usage limits, image generation, and access to newer features first.

Can ChatGPT access the internet?

Yes, ChatGPT can browse the web to fetch current information when needed, and it cites sources for web-based answers.

Does ChatGPT write code?

Yes, ChatGPT is a capable coding assistant that can write, explain, and debug code in most programming languages, though dedicated coding agents like Cursor or Claude Code offer deeper codebase integration.