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おすすめのAIブラウザ

AIブラウザはページを読み、その上で操作できます。Comet、Dia、Opera Neonが製品です。確認日にAtlasとCometの価格は読めませんでした。

9 製品。料金と説明の確認日は 2026年10月5日。

おすすめのAIブラウザ の比較

価格は各社が公開している開始価格です。無料プランや試用は、価格ページに書いてあるときだけ載せます。

Side-by-side comparison of pricing, free plan or trial, features, integrations, best fit, and sourced user comments
製品料金無料プランまたは試用主な機能連携向いている用途利用者の声
Opera Neon

#1

$19.90/mo (Dec 2025 price post)無料プランAn Opera browser built to act on tasks.MCP, Opera Browser CLI, Google Docs, Google SheetsPeople who want several AI agents and models in one browser, or who want to attach their own agents for free.出典付きのコメントはありません。
Browserbase

#2

Free, then $20/month無料プランCloud browsers, search, and fetch for agents.Playwright, Puppeteer, Selenium, StagehandDevelopers who need production browser infrastructure for their own agents.出典付きのコメントはありません。
Dia

#3

$20/month無料プランと試用A work browser that can chat across your tools.Slack, Notion, TeamsMac users who want tab- and tool-aware chat inside the browser, with a free non-AI browser if they do not pay.出典付きのコメントはありません。
Microsoft Edge Copilot Mode

#4

Not published無料プランCopilot built into Microsoft Edge.Microsoft 365, Word, Excel, OutlookPeople already in Edge who want tab-aware help without installing another browser.出典付きのコメントはありません。
Genspark

#5

$24.99/month無料プランAn all-in-one AI workspace with agents.Salesforce, HubSpot, Microsoft 365Individuals who want one subscription for many models and finished artifacts, not only chat.出典付きのコメントはありません。
Browser Use

#6

$0.02/hour記載なしOpen-source web agents and remote browsers.Chrome DevTools ProtocolDevelopers who want a web agent or a cheap remote browser, with the option to self-host the open-source library.出典付きのコメントはありません。
Perplexity Comet

#7

Not published記載なしPerplexity's personal AI browser assistant.None named on the pages we openedPeople who want an assistant inside the browser that can take a task, not only answer a question.出典付きのコメントはありません。
ChatGPT Atlas

#8

Not published記載なしOpenAI's ChatGPT browser, now discontinued.None named on the pages we openedHistorical reference only. OpenAI told users to leave Atlas before August 9, 2026.出典付きのコメントはありません。
Fellou

#9

Not published記載なしAn agentic browser for research and web automation.Notion, Google, RedditPeople who want to delegate multi-step web research and still approve the plan first.出典付きのコメントはありません。

ランキング

仕事への適合、自律性、制御、連携、始めやすさ、情報の公開度で並べています。

順位 1

Opera Neon

79

People who want several AI agents and models in one browser, or who want to attach their own agents for free.

料金
$19.90/mo (Dec 2025 price post)
無料プラン
あり
自律度
Semi-autonomous
連携
MCP, Opera Browser CLI, Google Docs
内訳
  • Fit for the job26/30
  • Autonomy13/20
  • Controls12/15
  • Integrations9/15
  • Access10/10
  • Evidence9/10

順位 2

Browserbase

79

Developers who need production browser infrastructure for their own agents.

料金
Free, then $20/month
無料プラン
あり
自律度
Autonomous
連携
Playwright, Puppeteer, Selenium
内訳
  • Fit for the job21/30
  • Autonomy17/20
  • Controls11/15
  • Integrations11/15
  • Access10/10
  • Evidence9/10

順位 3

Dia

76

Mac users who want tab- and tool-aware chat inside the browser, with a free non-AI browser if they do not pay.

料金
$20/month
無料プラン
あり
自律度
Copilot
連携
Slack, Notion, Teams
内訳
  • Fit for the job27/30
  • Autonomy9/20
  • Controls13/15
  • Integrations8/15
  • Access10/10
  • Evidence9/10

People already in Edge who want tab-aware help without installing another browser.

料金
Not published
無料プラン
あり
自律度
Copilot
連携
Microsoft 365, Word, Excel
内訳
  • Fit for the job25/30
  • Autonomy9/20
  • Controls13/15
  • Integrations10/15
  • Access10/10
  • Evidence9/10

順位 5

Genspark

76

Individuals who want one subscription for many models and finished artifacts, not only chat.

料金
$24.99/month
無料プラン
あり
自律度
Semi-autonomous
連携
Salesforce, HubSpot, Microsoft 365
内訳
  • Fit for the job24/30
  • Autonomy13/20
  • Controls12/15
  • Integrations8/15
  • Access10/10
  • Evidence9/10

順位 6

Browser Use

73

Developers who want a web agent or a cheap remote browser, with the option to self-host the open-source library.

料金
$0.02/hour
無料プラン
なし
自律度
Autonomous
連携
Chrome DevTools Protocol
内訳
  • Fit for the job22/30
  • Autonomy17/20
  • Controls11/15
  • Integrations6/15
  • Access8/10
  • Evidence9/10

People who want an assistant inside the browser that can take a task, not only answer a question.

料金
Not published
無料プラン
なし
自律度
Semi-autonomous
連携
None named on the pages we opened
内訳
  • Fit for the job29/30
  • Autonomy13/20
  • Controls12/15
  • Integrations4/15
  • Access4/10
  • Evidence9/10

70

Historical reference only. OpenAI told users to leave Atlas before August 9, 2026.

料金
Not published
無料プラン
なし
自律度
Semi-autonomous
連携
None named on the pages we opened
内訳
  • Fit for the job28/30
  • Autonomy13/20
  • Controls12/15
  • Integrations4/15
  • Access4/10
  • Evidence9/10

順位 9

Fellou

69

People who want to delegate multi-step web research and still approve the plan first.

料金
Not published
無料プラン
なし
自律度
Semi-autonomous
連携
Notion, Google, Reddit
内訳
  • Fit for the job23/30
  • Autonomy13/20
  • Controls12/15
  • Integrations8/15
  • Access4/10
  • Evidence9/10

価格、機能、要約

  1. 1

    Opera Neon

    People who want several AI agents and models in one browser, or who want to attach their own agents for free.

    Opera Neon is an agentic browser from Opera that reads pages, carries context across tabs, and runs agents for chat, browsing, research, and document creation. It includes Opera browser features such as a built-in free VPN and an ad blocker.

    料金
    $19.90/mo (Dec 2025 price post)
    Opera's December 11, 2025 Neon news post says the public early-access subscription is $19.90 per month. An August 14, 2026 Opera news post says a Free plan lets you download Neon and connect your own agents over MCP or the Opera Browser CLI, and that the Standard subscription is required for Neon's own AI, including autonomous browsing, deep research, Skills, and generative agents. The August post does not restate the dollar amount.
    主な機能
    MCP, Opera Browser CLI, Google Docs, Google Sheets. It can carry a stretch of the work, then wait. A person still approves anything that leaves the building.

    Opera Neonの料金と機能/Opera Neonの代替

  2. 2

    Browserbase

    Developers who need production browser infrastructure for their own agents.

    Browserbase is a platform for running agents that browse, fill forms, and act where an API does not exist, plus Search and Fetch APIs and Agent Identity for logins and CAPTCHAs. The company says it runs more than 35 million browser sessions a month across 10,000 customers, and that Stagehand, its AI browser SDK, is maintained by Browserbase.

    料金
    Free, then $20/month
    Free is $0/month with 3 concurrent browsers, 1 browser hour, 3 agent runs, and 1,000 Search and 1,000 Fetch calls. Developer is $20/month with 25 concurrent browsers and 100 browser hours, then $0.12 per browser hour. Startup is $99/month with 100 concurrent browsers and 500 browser hours, then $0.10 per browser hour. Scale is custom. The free plan includes $5 of model tokens. Last checked 5 October 2026.
    主な機能
    Playwright, Puppeteer, Selenium, Stagehand, LangChain, CrewAI. Sold to run the job rather than wait for a prompt on every step. Keep a way to stop it before it reaches a customer, a candidate, or a filing.

    Browserbaseの料金と機能/Browserbaseの代替

  3. 3

    Dia

    Mac users who want tab- and tool-aware chat inside the browser, with a free non-AI browser if they do not pay.

    Dia is a browser from The Browser Company that can pull context from connected tools such as Slack, Notion, and Teams and turn it into a shareable report. The plans page says the free Better Browser has no AI, Better Answers is chat with page and tool context, and Better Days adds more usage plus briefs, recaps, and reports.

    料金
    $20/month
    Better Browser is free and has no AI features. Better Answers is $20/month. Better Days is $100/month and includes 6x the usage of Better Answers plus a daily Morning Brief, reports, decks, and recaps. New users get a 14-day Better Days trial with no credit card. Extra usage is sold in $20 blocks. The page says paid plans begin rolling out to most new Mac users on August 17, existing users keep AI free until emailed, and Windows is not on paid plans yet. Last checked 5 October 2026.
    主な機能
    Slack, Notion, Teams. A person drives. The product drafts, searches, or suggests inside a workflow you already run.

    Diaの料金と機能/Diaの代替

  4. 4

    Microsoft Edge Copilot Mode

    People already in Edge who want tab-aware help without installing another browser.

    Copilot in Microsoft Edge uses open tabs to compare, summarize, and draft, and can group browsing into Journeys on the new tab page. Microsoft says Copilot helps when you ask, and that optional context, video highlights, and memory stay under user control.

    料金
    Not published
    The Edge page says Copilot in Edge has a higher free usage allowance than some other Copilot surfaces. When a limit is hit, the user can wait or buy a Microsoft 365 subscription for higher chat, create, and agent limits. No dollar price is on the page. Last checked 5 October 2026.
    主な機能
    Microsoft 365, Word, Excel, Outlook, OneDrive. A person drives. The product drafts, searches, or suggests inside a workflow you already run.

    Microsoft Edge Copilot Modeの料金と機能/Microsoft Edge Copilot Modeの代替

  5. 5

    Genspark

    Individuals who want one subscription for many models and finished artifacts, not only chat.

    Genspark's site presents AI Workspace 6.0 as a place to ask in plain language and get a live dashboard from your data. Its help center describes membership plans that pay for credits, AI Drive storage, and access to agents and models, including slides, docs, sheets, and code.

    料金
    $24.99/month
    Help Center prices, in USD: Free is $0 with 100 credits per day and 1 GB of AI Drive. Plus is $24.99/month, or $19.99/month billed annually at $239.99/year, with 10,000 monthly credits and 50 GB. Pro starts at $249.99/month, or $199.99/month billed annually at $2,399.99/year, with 125,000 monthly credits and 1 TB. Team is $30 per seat per month. Enterprise is custom. The page says the described benefits are valid through June 30, 2027. Last checked 5 October 2026.
    主な機能
    Salesforce, HubSpot, Microsoft 365. It can carry a stretch of the work, then wait. A person still approves anything that leaves the building.

    Gensparkの料金と機能/Gensparkの代替

  6. 6

    Browser Use

    Developers who want a web agent or a cheap remote browser, with the option to self-host the open-source library.

    Browser Use sells agents that finish browser tasks and a remote browser for running your own agents. The site says the open-source project has 117k GitHub stars, an MIT license, and 8.1 million downloads a month, and that its cloud browsers are $0.02 an hour.

    料金
    $0.02/hour
    Browsers are $0.02 per hour plus internet traffic. The page says credits start at $5, with no subscription and no expiry. Browser Use Agents are listed separately, with links to enterprise pricing and model prices, but those dollar rates were not on the homepage. Last checked 5 October 2026.
    主な機能
    Chrome DevTools Protocol. Sold to run the job rather than wait for a prompt on every step. Keep a way to stop it before it reaches a customer, a candidate, or a filing.

    Browser Useの料金と機能/Browser Useの代替

  7. 7

    Perplexity Comet

    People who want an assistant inside the browser that can take a task, not only answer a question.

    Perplexity's Comet page describes Comet as a personal AI assistant browser, available for Mac, Windows, iOS, and Android. The extracted page text shows it taking tasks such as comparing news coverage, building a basic site, drafting a reply from a schedule, and buying a product.

    料金
    Not published
    The Comet URL and the Perplexity pricing hub both timed out on direct fetch, so no Comet price was verified from a loaded page. Do not treat third-party writeups of a free Comet tier as confirmed. Last checked 5 October 2026.
    主な機能
    None named on the pages we opened. It can carry a stretch of the work, then wait. A person still approves anything that leaves the building.

    Perplexity Cometの料金と機能/Perplexity Cometの代替

  8. 8

    ChatGPT Atlas

    Historical reference only. OpenAI told users to leave Atlas before August 9, 2026.

    OpenAI's introduction of ChatGPT Atlas describes a macOS browser with ChatGPT in the page, built-in memory, and an agent mode that could research, automate tasks, and book while the user browsed. OpenAI's help article on evolving Atlas says the browser was scheduled to stop working on August 9, 2026, with browser-based agent work moving into ChatGPT and Codex.

    料金
    Not published
    chatgpt.com/atlas did not return product content (a bot check). OpenAI's introduction said Atlas launched to Free, Plus, Pro, and Go users, with agent mode in preview for Plus, Pro, and Business. No Atlas-specific dollar price was on the pages retrieved. The help article says Atlas browser data, including bookmarks and history, would not transfer automatically. Last checked 5 October 2026.
    主な機能
    None named on the pages we opened. It can carry a stretch of the work, then wait. A person still approves anything that leaves the building.

    ChatGPT Atlasの料金と機能/ChatGPT Atlasの代替

  9. 9

    Fellou

    People who want to delegate multi-step web research and still approve the plan first.

    Fellou is an agentic AI browser that turns a goal into a step-by-step plan the user can edit or approve, then runs research and web automation, including on logged-in sites. It says tasks can run in a background workspace, can be scheduled, and can be extended with the open-source Eko 2.0 framework.

    料金
    Not published
    The homepage does not list a price. Contact is given as hi@fellou.ai. Last checked 5 October 2026.
    主な機能
    Notion, Google, Reddit. It can carry a stretch of the work, then wait. A person still approves anything that leaves the building.

    Fellouの料金と機能/Fellouの代替

AIエージェントとは

AIブラウザはページを読み、その上で操作できます。Comet、Dia、Opera Neonが製品です。確認日にAtlasとCometの価格は読めませんでした。

このリストの並び

このリストの上位には Opera Neon, Browserbase, Dia があります。順序は公開スコアで、広告枠ではありません。

比べる点

仕事、開始価格、結果を人がまだ承認するかを見てください。

  • その製品が実際にやる仕事
  • 公開価格、無料プラン、または明確な個別価格
  • 顧客に届く前の確認

この種のソフトウェアの用途

同じ手順が繰り返されるときに使います。判断は人が持ちます。

  • デモの前に開始価格を見る
  • 汎用チャットではなく、この仕事の製品を比べる
  • 長いメモは製品ページで読む

このリストの相手

仕事の中身が分かっていて、料金に日付のある製品を見たい人向けです。

公開されている開始価格

確認できた開始価格: Opera Neon ($19.90/mo (Dec 2025 price post)), Browserbase (Free, then $20/month), Dia ($20/month)。確認日は2026年10月5日。

選び方

まず仕事を合わせ、次に誰向けか、営業電話なしで始められるかを読んでください。

近いカテゴリ

隣の仕事には別の一覧があります。

よくある質問

採点方法

確認日 5 October 2026

すべての製品を同じ6項目で100点満点にします。順位は合計、適合、名前の順です。 方法の全文を読む.