Source: https://bestagentsfor.com/ja/ai-agents-for/voice-agents/
Markdown: https://bestagentsfor.com/ja/ai-agents-for/voice-agents/index.md

Title: おすすめのAI音声エージェント (2026) | Best Agents For

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# おすすめのAI音声エージェント

音声エージェントは電話で話し、予約や転送ができます。Vapi、Retell、ElevenLabsは従量です。BlandとSynthflowには入口があります。

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音声エージェント 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。

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

#1

From $0.14/min

記載なし

Enterprise voice AI that bundles model, speech, and telephony into one per-minute rate.

Twilio, Salesforce, HubSpot, Slack

Regulated teams that want a single per-minute voice rate

出典付きのコメントはありません。

#2

From $6/mo

無料プラン

Conversational voice and chat agents with included call minutes on each plan.

Zapier, Stripe, Cal.com, Twilio

Teams that want voice agents with a free starting allowance

出典付きのコメントはありません。

#3

From $0.05/min

記載なし

Voice-agent platform for teams that build, deploy, and monitor their own agents.

Deepgram, OpenAI, ElevenLabs

Developers and enterprises building their own voice agents

出典付きのコメントはありません。

#4

From $0.07/min

記載なし

Pay-as-you-go platform for inbound and outbound AI phone agents.

Twilio, Telnyx, Vonage

Teams that want usage-priced phone agents without an annual contract

出典付きのコメントはありません。

#5

From $30000/yr

記載なし

Enterprise voice-agent platform with its own telephony network.

Cisco, Avaya, Genesys, RingCentral

Enterprises deploying voice agents on existing telephony

出典付きのコメントはありません。

#6

From $29.99/user/mo

無料プランと試用

Not an AI tool. A coworker.

Slack, Gmail, Notion, HubSpot

Teams that want an assistant inside Slack and email, not only phone calls

出典付きのコメントはありません。

#7

Not published

記載なし

AI agents that call or text new leads and book meetings.

HubSpot, Salesforce, Zoho, Twilio

Revenue teams that need immediate follow-up on inbound leads

出典付きのコメントはありません。

#8

Custom

記載なし

Enterprise dialog platform for voice agents that resolve calls without escalation.

OpenTable

Contact centers that want enterprise voice agents on existing systems

出典付きのコメントはありません。

#9

Not published

試用

Platform for designing, launching, and iterating customer-service agents.

None named on the pages we opened

CX teams that design and operate their own agents

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。

#

エージェント

向いている用途

料金

無料プラン

自律度

連携

スコア

1

Bland AI

Regulated teams that want a single per-minute voice rate

From $0.14/min

なし

Autonomous

Twilio, Salesforce, HubSpot +5

- Fit for the job27/30

- Autonomy17/20

- Controls11/15

- Integrations15/15

- Access8/10

- Evidence9/10

2

ElevenLabs Agents

Teams that want voice agents with a free starting allowance

From $6/mo

あり

Autonomous

Zapier, Stripe, Cal.com +5

- Fit for the job25/30

- Autonomy17/20

- Controls11/15

- Integrations15/15

- Access10/10

- Evidence9/10

3

Vapi

Developers and enterprises building their own voice agents

From $0.05/min

なし

Autonomous

Deepgram, OpenAI, ElevenLabs

- Fit for the job29/30

- Autonomy17/20

- Controls11/15

- Integrations8/15

- Access8/10

- Evidence9/10

4

Retell AI

Teams that want usage-priced phone agents without an annual contract

From $0.07/min

なし

Autonomous

Twilio, Telnyx, Vonage

- Fit for the job28/30

- Autonomy17/20

- Controls11/15

- Integrations8/15

- Access8/10

- Evidence9/10

5

Synthflow

Enterprises deploying voice agents on existing telephony

From $30000/yr

なし

Autonomous

Cisco, Avaya, Genesys +4

- Fit for the job26/30

- Autonomy17/20

- Controls11/15

- Integrations12/15

- Access4/10

- Evidence9/10

6

Lindy

Teams that want an assistant inside Slack and email, not only phone calls

From $29.99/user/mo

あり

Semi-autonomous

Slack, Gmail, Notion +5

- Fit for the job21/30

- Autonomy13/20

- Controls12/15

- Integrations14/15

- Access10/10

- Evidence9/10

7

Thoughtly

Revenue teams that need immediate follow-up on inbound leads

Not published

なし

Autonomous

HubSpot, Salesforce, Zoho +4

- Fit for the job23/30

- Autonomy17/20

- Controls11/15

- Integrations12/15

- Access4/10

- Evidence9/10

8

PolyAI

Contact centers that want enterprise voice agents on existing systems

Custom

なし

Autonomous

OpenTable

- Fit for the job24/30

- Autonomy17/20

- Controls11/15

- Integrations6/15

- Access4/10

- Evidence9/10

9

Voiceflow

CX teams that design and operate their own agents

Not published

試用

Copilot

None named on the pages we opened

- Fit for the job22/30

- Autonomy9/20

- Controls13/15

- Integrations4/15

- Access4/10

- Evidence9/10

順位 1

87

Regulated teams that want a single per-minute voice rate

- Fit for the job27/30

- Autonomy17/20

- Controls11/15

- Integrations15/15

- Access8/10

- Evidence9/10

順位 2

87

Teams that want voice agents with a free starting allowance

- Fit for the job25/30

- Autonomy17/20

- Controls11/15

- Integrations15/15

- Access10/10

- Evidence9/10

順位 3

82

Developers and enterprises building their own voice agents

- Fit for the job29/30

- Autonomy17/20

- Controls11/15

- Integrations8/15

- Access8/10

- Evidence9/10

順位 4

81

Teams that want usage-priced phone agents without an annual contract

- Fit for the job28/30

- Autonomy17/20

- Controls11/15

- Integrations8/15

- Access8/10

- Evidence9/10

順位 5

79

Enterprises deploying voice agents on existing telephony

- Fit for the job26/30

- Autonomy17/20

- Controls11/15

- Integrations12/15

- Access4/10

- Evidence9/10

順位 6

79

Teams that want an assistant inside Slack and email, not only phone calls

- Fit for the job21/30

- Autonomy13/20

- Controls12/15

- Integrations14/15

- Access10/10

- Evidence9/10

順位 7

76

Revenue teams that need immediate follow-up on inbound leads

- Fit for the job23/30

- Autonomy17/20

- Controls11/15

- Integrations12/15

- Access4/10

- Evidence9/10

順位 8

71

Contact centers that want enterprise voice agents on existing systems

- Fit for the job24/30

- Autonomy17/20

- Controls11/15

- Integrations6/15

- Access4/10

- Evidence9/10

順位 9

61

CX teams that design and operate their own agents

- Fit for the job22/30

- Autonomy9/20

- Controls13/15

- Integrations4/15

- Access4/10

- Evidence9/10

## 価格、機能、要約

1

### Bland AI

Regulated teams that want a single per-minute voice rate

Bland builds and runs inbound and outbound phone agents, with pathways, transfers, and connectors to telephony and CRM tools. The site says the per-minute rate includes the language model, speech-to-text, and text-to-speech, and that telephony is billed separately.

Bland AIの料金と機能/Bland AIの代替

2

### ElevenLabs Agents

Teams that want voice agents with a free starting allowance

ElevenLabs Agents is a conversational AI product for voice and chat, with a workflow builder, knowledge base, and phone connectivity through a customer's telephony provider. The agents pricing page bills by call minutes and says LLM usage is extra.

ElevenLabs Agentsの料金と機能/ElevenLabs Agentsの代替

3

### Vapi

Developers and enterprises building their own voice agents

Vapi provides orchestration, telephony, and monitoring so developers can configure voice, conversation flow, and integrations. The site says enterprise options include SSO, HIPAA, PCI, and SOC 2.

Vapiの料金と機能/Vapiの代替

4

### Retell AI

Teams that want usage-priced phone agents without an annual contract

Retell AI is a dashboard and API for building voice agents that handle inbound calls, outbound campaigns, chat, and SMS. The homepage says voice agents cost $0.07 to $0.31 per minute depending on model, voice, and add-ons, and that signup includes $10 in credits.

Retell AIの料金と機能/Retell AIの代替

5

### Synthflow

Enterprises deploying voice agents on existing telephony

Synthflow designs, tests, and launches voice agents, and says it can connect through its own telephony or a customer's SIP trunk. The homepage names Cisco, Avaya, Genesys, and RingCentral among phone-system connections.

Synthflowの料金と機能/Synthflowの代替

6

### Lindy

Teams that want an assistant inside Slack and email, not only phone calls

Lindy takes tasks in Slack, email, or iMessage, such as pulling reports, drafting replies, and updating a CRM. The homepage says actions that write or send can wait for approval, and that data is not used to train models.

Lindyの料金と機能/Lindyの代替

7

### Thoughtly

Revenue teams that need immediate follow-up on inbound leads

Thoughtly responds to inbound leads by voice, SMS, or email, qualifies them, and books meetings, then logs the interaction to a CRM. The pricing page says voice, SMS, email, and workflows are in every plan.

Thoughtlyの料金と機能/Thoughtlyの代替

8

### PolyAI

Contact centers that want enterprise voice agents on existing systems

PolyAI builds dialog agents in Dialog Studio and runs them on its own models, including the audio-native Dialog-RSN-1 model. The homepage cites resolution without a human agent on its largest deployments and lists SOC 2+ Type 2, ISO 27001, PCI DSS, and GDPR.

PolyAIの料金と機能/PolyAIの代替

9

### Voiceflow

CX teams that design and operate their own agents

Voiceflow is a builder for conversational agents across web, app, WhatsApp, SMS, and voice. The site describes workflows, evaluations, and production environments, and says teams can choose major model providers or bring their own model.

Voiceflowの料金と機能/Voiceflowの代替

## AIエージェントとは

音声エージェントは電話で話し、予約や転送ができます。Vapi、Retell、ElevenLabsは従量です。BlandとSynthflowには入口があります。

## このリストの並び

このリストの上位には Bland AI, ElevenLabs Agents, Vapi 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: Bland AI (From $0.14/min), ElevenLabs Agents (From $6/mo), Vapi (From $0.05/min)。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。

- おすすめのAI受付

- カスタマーサポート向けAIエージェント

- AIエージェントを作るプラットフォーム

## よくある質問

### おすすめのAI音声エージェントには何が入りますか

### 料金はベンダーの公開価格ですか

### 星評価やレビュー件数はありますか

## 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.
