# Amazon Lex, Rasa vs Google Cloud Speech-to-Text Comparison

| | Amazon Lex | Rasa | Google Cloud Speech-to-Text | 
|---|---|---|---|
| **Star Rating** | 4.2 out of 5 | 4.0 out of 5 | 4.6 out of 5 | 
| **Total Reviews** | 38 | 11 | 238 | 
| **Largest Market Segment** | Enterprise (37.8% of reviews) | Small-Business (72.7% of reviews) | Small-Business (40.1% of reviews) | 
| **Entry Level Price** | No pricing available | Free | Pay As You Go Per Month | 

---
## Top Pros & Cons

### Amazon Lex

Pros:
- AI Integration (1 reviews)
- API Integration (1 reviews)

Cons:
- Complexity (1 reviews)
- Expensive (1 reviews)

### Rasa

**Not enough data**

### Google Cloud Speech-to-Text

Pros:
- Ease of Use (8 reviews)
- Speech to Text Conversion (5 reviews)

Cons:
- Expensive (3 reviews)
- Pricing Issues (3 reviews)

---
## Ratings Comparison
| Rating | Amazon Lex | Rasa | Google Cloud Speech-to-Text | 
|---|---|---|---|
  | **Meets Requirements** | 8.7 (24 reviews) | 7.8 (9 reviews) | 9.1 (161 reviews) | 
  | **Ease of Use** | 8.5 (24 reviews) | 7.2 (9 reviews) | 9.3 (163 reviews) | 
  | **Ease of Setup** | 8.1 (15 reviews) | Not enough data | 8.7 (44 reviews) | 
  | **Ease of Admin** | 7.9 (14 reviews) | Not enough data | 8.8 (34 reviews) | 
  | **Quality of Support** | 8.7 (24 reviews) | 8.3 (9 reviews) | 8.9 (150 reviews) | 
  | **Has the product been a good partner in doing business?** | 8.5 (14 reviews) | Not enough data | 8.9 (32 reviews) | 
  | **Product Direction (% positive)** | 8.5 (23 reviews) | 5.0 (7 reviews) | 9.6 (153 reviews) | 

---
## Pricing

### Amazon Lex

#### Entry-Level Pricing

No pricing available

#### Free Trial

No information available

### Rasa

#### Entry-Level Pricing

Plan: Developer Edition

Price: Free

Description: For developers exploring AI assistant projects, you can access all of Rasa Pro on your own computer. CALM, Enterprise Search, E2E testing, and more. Community Support is available in our Forum.

Key Features:
- Access to Rasa Pro and our dialogue engine CALM (Conversational AI with Language Models) .

[Browse all 3 editions](https://www.g2.com/products/rasa/pricing)

#### Free Trial

Yes

### Google Cloud Speech-to-Text

#### Entry-Level Pricing

Plan: Speech Recognition (without Data Logging - default)

Price: Pay As You Go Per Month

Key Features:
- Standard models (all models except enhanced video and phone call): Free up to 60 minutes, Over 60 Mins up to 1 Million Mins is $0.006 / 15 seconds 
- Enhanced models (video, phone call): Free up to 60 minutes, Over 60 Mins up to 1 Million Mins is $0.009 / 15 seconds

[Browse all 3 editions](https://www.g2.com/products/google-cloud-speech-to-text/pricing)

#### Free Trial

Yes

---
## Features Comparison By Category

### Conversational Marketing

| Product | Score | Reviews |
|---|---|---|
| **Amazon Lex** | N/A | N/A |
| **Rasa** | N/A | N/A |
| **Google Cloud Speech-to-Text** | N/A | N/A |

#### Messenger

| Feature | Amazon Lex | Rasa | Google Cloud Speech-to-Text | 
|---|---|---|---|
| **Sequencing** | Not enough data | Not enough data | Not enough data | 
| **AI** | Not enough data | Not enough data | Not enough data | 
| **Live Chat** | Not enough data | Not enough data | Not enough data | 
| **Customization Interface** | Not enough data | Not enough data | Not enough data | 

#### Channels

| Feature | Amazon Lex | Rasa | Google Cloud Speech-to-Text | 
|---|---|---|---|
| **Social Media** | Not enough data | Not enough data | Not enough data | 
| **Website** | Not enough data | Not enough data | Not enough data | 
| **Text Message (SMS)** | Not enough data | Not enough data | Not enough data | 
| **Voice Assistants** | Not enough data | Not enough data | Not enough data | 
| **Other** | Not enough data | Not enough data | Not enough data | 

#### Customers

| Feature | Amazon Lex | Rasa | Google Cloud Speech-to-Text | 
|---|---|---|---|
| **Targeting** | Not enough data | Not enough data | Not enough data | 
| **Profiles** | Not enough data | Not enough data | Not enough data | 
| **Analytics** | Not enough data | Not enough data | Not enough data | 
| **Lead Gathering** | Not enough data | Not enough data | Not enough data | 
| **Sales Conversion** | Not enough data | Not enough data | Not enough data | 

#### Agentic AI - Conversational Marketing

| Feature | Amazon Lex | Rasa | Google Cloud Speech-to-Text | 
|---|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | Not enough data | 
| **Multi-step Planning** | Not enough data | Not enough data | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | Not enough data | 
| **Adaptive Learning** | Not enough data | Not enough data | Not enough data | 
| **Natural Language Interaction** | Not enough data | Not enough data | Not enough data | 
| **Proactive Assistance** | Not enough data | Not enough data | Not enough data | 
| **Decision Making** | Not enough data | Not enough data | Not enough data | 

### Transcription

| Product | Score | Reviews |
|---|---|---|
| **Amazon Lex** | N/A | N/A |
| **Rasa** | N/A | N/A |
| **Google Cloud Speech-to-Text** | 8.9/10 | 98 |

#### Voice

| Feature | Amazon Lex | Rasa | Google Cloud Speech-to-Text | 
|---|---|---|---|
| **Dictation** | Not enough data | Not enough data | 9.2 (85 reviews) | 
| **Accuracy** | Not enough data | Not enough data | 8.7 (91 reviews) | 

#### Transcription

| Feature | Amazon Lex | Rasa | Google Cloud Speech-to-Text | 
|---|---|---|---|
| **Speaker Identification** | Not enough data | Not enough data | 8.8 (82 reviews) | 
| **Timecode Management** | Not enough data | Not enough data | 8.9 (79 reviews) | 
| **Closed Captioning** | Not enough data | Not enough data | 9.0 (78 reviews) | 
| **Custom Dictionary** | Not enough data | Not enough data | 8.9 (75 reviews) | 

#### Editing

| Feature | Amazon Lex | Rasa | Google Cloud Speech-to-Text | 
|---|---|---|---|
| **Collaboration** | Not enough data | Not enough data | 9.0 (72 reviews) | 
| **Spell Check and Punctuation** | Not enough data | Not enough data | 8.9 (83 reviews) | 
| **Text Editing** | Not enough data | Not enough data | 9.2 (79 reviews) | 
| **Translation** | Not enough data | Not enough data | 8.9 (78 reviews) | 

#### Integration

| Feature | Amazon Lex | Rasa | Google Cloud Speech-to-Text | 
|---|---|---|---|
| **Data Security** | Not enough data | Not enough data | 9.1 (74 reviews) | 
| **API** | Not enough data | Not enough data | 9.1 (79 reviews) | 
| **Voice Files** | Not enough data | Not enough data | 9.0 (82 reviews) | 
| **Live Captioning** | Not enough data | Not enough data | 8.8 (77 reviews) | 
| **Integrates With Existing Applications** | Not enough data | Not enough data | 9.1 (77 reviews) | 

#### Agentic AI - Transcription

| Feature | Amazon Lex | Rasa | Google Cloud Speech-to-Text | 
|---|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | Not enough data | 
| **Decision Making** | Not enough data | Not enough data | Not enough data | 

### Conversational Support

| Product | Score | Reviews |
|---|---|---|
| **Amazon Lex** | N/A | N/A |
| **Rasa** | N/A | N/A |
| **Google Cloud Speech-to-Text** | N/A | N/A |

#### Conversational Platform

| Feature | Amazon Lex | Rasa | Google Cloud Speech-to-Text | 
|---|---|---|---|
| **Personalization** | Not enough data | Not enough data | Not enough data | 
| **Omnichannel** | Not enough data | Not enough data | Not enough data | 
| **Contextual Engagement** | Not enough data | Not enough data | Not enough data | 
| **Proactive Engagement** | Not enough data | Not enough data | Not enough data | 

#### Support Automation

| Feature | Amazon Lex | Rasa | Google Cloud Speech-to-Text | 
|---|---|---|---|
| **Intelligent Routing** | Not enough data | Not enough data | Not enough data | 
| **Seamless Escalation** | Not enough data | Not enough data | Not enough data | 
| **Transcripts** | Not enough data | Not enough data | Not enough data | 
| **Self-Serve Support** | Not enough data | Not enough data | Not enough data | 

#### Generative AI

| Feature | Amazon Lex | Rasa | Google Cloud Speech-to-Text | 
|---|---|---|---|
| **AI Text Generation** | Not enough data | Not enough data | Not enough data | 
| **AI Text Summarization** | Not enough data | Not enough data | Not enough data | 

### Bot Platforms

| Product | Score | Reviews |
|---|---|---|
| **Amazon Lex** | N/A | N/A |
| **Rasa** | N/A | N/A |
| **Google Cloud Speech-to-Text** | N/A | N/A |

#### Generative AI

| Feature | Amazon Lex | Rasa | Google Cloud Speech-to-Text | 
|---|---|---|---|
| **AI Text Generation** | Not enough data | Not enough data | Not enough data | 
| **AI Text Summarization** | Not enough data | Not enough data | Not enough data | 

#### Agentic AI - Bot Platforms

| Feature | Amazon Lex | Rasa | Google Cloud Speech-to-Text | 
|---|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | Not enough data | 
| **Multi-step Planning** | Not enough data | Not enough data | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | Not enough data | 
| **Adaptive Learning** | Not enough data | Not enough data | Not enough data | 
| **Natural Language Interaction** | Not enough data | Not enough data | Not enough data | 
| **Proactive Assistance** | Not enough data | Not enough data | Not enough data | 
| **Decision Making** | Not enough data | Not enough data | Not enough data | 

### Speech Analytics

| Product | Score | Reviews |
|---|---|---|
| **Amazon Lex** | N/A | N/A |
| **Rasa** | N/A | N/A |
| **Google Cloud Speech-to-Text** | 9.4/10 | 34 |

#### Generative AI

| Feature | Amazon Lex | Rasa | Google Cloud Speech-to-Text | 
|---|---|---|---|
| **AI Text Summarization** | Not enough data | Not enough data | 9.4 (30 reviews) | 

### Voice Recognition

| Product | Score | Reviews |
|---|---|---|
| **Amazon Lex** | N/A | N/A |
| **Rasa** | N/A | N/A |
| **Google Cloud Speech-to-Text** | 9.3/10 | 12 |

#### Deployment & Integration - Voice Recognition

| Feature | Amazon Lex | Rasa | Google Cloud Speech-to-Text | 
|---|---|---|---|
| **Installation & setup Ease** | Not enough data | Not enough data | 9.7 (5 reviews) | 
| **Developer API & SDK** | Not enough data | Not enough data | 8.7 (5 reviews) | 
| **Software Integration** | Not enough data | Not enough data | 10.0 (5 reviews) | 
| **Multi-Device Support** | Not enough data | Not enough data | 9.3 (5 reviews) | 

#### Performance Optimization - Voice Recognition

| Feature | Amazon Lex | Rasa | Google Cloud Speech-to-Text | 
|---|---|---|---|
| **Accuracy in Noisy Settings** | Not enough data | Not enough data | 7.9 (7 reviews) | 
| **High-Volume Scalability** | Not enough data | Not enough data | 9.3 (5 reviews) | 
| **Environmental Noise Adaptation** | Not enough data | Not enough data | 9.0 (5 reviews) | 
| **Multilingual Voice Recognition** | Not enough data | Not enough data | 9.8 (8 reviews) | 
| **Low-Latency Processing** | Not enough data | Not enough data | 8.9 (6 reviews) | 

#### Security & Compliance - Voice Recognition

| Feature | Amazon Lex | Rasa | Google Cloud Speech-to-Text | 
|---|---|---|---|
| **Liveness Detection** | Not enough data | Not enough data | 9.7 (5 reviews) | 
| **Regulatory Compliance** | Not enough data | Not enough data | 9.7 (5 reviews) | 
| **Secure Communication Channels** | Not enough data | Not enough data | 9.3 (5 reviews) | 

#### Advanced AI & Biometric Features - Voice Recognition

| Feature | Amazon Lex | Rasa | Google Cloud Speech-to-Text | 
|---|---|---|---|
| **Voice-Based Authentication** | Not enough data | Not enough data | 9.0 (5 reviews) | 
| **Machine Learning & Adaptive Speech Recognition** | Not enough data | Not enough data | 9.4 (6 reviews) | 
| **Speaker Differentiation** | Not enough data | Not enough data | 9.7 (6 reviews) | 
| **Sentiment & Tone Analysis** | Not enough data | Not enough data | 9.7 (5 reviews) | 

#### Agentic AI - Voice Recognition

| Feature | Amazon Lex | Rasa | Google Cloud Speech-to-Text | 
|---|---|---|---|
| **Natural Language Interaction** | Not enough data | Not enough data | 9.3 (5 reviews) | 

### Genesys AppFoundry Marketplace

| Product | Score | Reviews |
|---|---|---|
| **Amazon Lex** | N/A | N/A |
| **Rasa** | N/A | N/A |
| **Google Cloud Speech-to-Text** | N/A | N/A |

#### Agentic AI - Genesys AppFoundry Marketplace

| Feature | Amazon Lex | Rasa | Google Cloud Speech-to-Text | 
|---|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | Not enough data | 
| **Adaptive Learning** | Not enough data | Not enough data | Not enough data | 
| **Natural Language Interaction** | Not enough data | Not enough data | Not enough data | 
| **Proactive Assistance** | Not enough data | Not enough data | Not enough data | 
| **Decision Making** | Not enough data | Not enough data | Not enough data | 

### Conversational Interface Agents

| Product | Score | Reviews |
|---|---|---|
| **Amazon Lex** | N/A | N/A |
| **Rasa** | N/A | N/A |
| **Google Cloud Speech-to-Text** | N/A | N/A |

#### Natural Language Interaction - Conversational Interface Agents 

| Feature | Amazon Lex | Rasa | Google Cloud Speech-to-Text | 
|---|---|---|---|
| **Natural Language Query Understanding** | Not enough data | Not enough data | Not enough data | 
| **Multi-Turn Conversation Management** | Not enough data | Not enough data | Not enough data | 
| **Voice & Text Interface Support** | Not enough data | Not enough data | Not enough data | 

#### Intent & Action Handling - Conversational Interface Agents 

| Feature | Amazon Lex | Rasa | Google Cloud Speech-to-Text | 
|---|---|---|---|
| **Data Retrieval from Connected Systems** | Not enough data | Not enough data | Not enough data | 
| **Intent Recognition & Mapping** | Not enough data | Not enough data | Not enough data | 
| **Action & Workflow Triggering** | Not enough data | Not enough data | Not enough data | 

#### Context & Personalization - Conversational Interface Agents 

| Feature | Amazon Lex | Rasa | Google Cloud Speech-to-Text | 
|---|---|---|---|
| **Conversation Context Persistence** | Not enough data | Not enough data | Not enough data | 
| **User Identity & Permission Awareness** | Not enough data | Not enough data | Not enough data | 

#### Enterprise Integration & Deployment - Conversational Interface Agents 

| Feature | Amazon Lex | Rasa | Google Cloud Speech-to-Text | 
|---|---|---|---|
| **Enterprise Application Integrations** | Not enough data | Not enough data | Not enough data | 
| **Security & Access Controls** | Not enough data | Not enough data | Not enough data | 

### AI Agents

| Product | Score | Reviews |
|---|---|---|
| **Amazon Lex** | N/A | N/A |
| **Rasa** | N/A | N/A |
| **Google Cloud Speech-to-Text** | N/A | N/A |

#### Agentic AI - AI Agents

| Feature | Amazon Lex | Rasa | Google Cloud Speech-to-Text | 
|---|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | Not enough data | 
| **Multi-step Planning** | Not enough data | Not enough data | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | Not enough data | 
| **Adaptive Learning** | Not enough data | Not enough data | Not enough data | 
| **Natural Language Interaction** | Not enough data | Not enough data | Not enough data | 
| **Proactive Assistance** | Not enough data | Not enough data | Not enough data | 
| **Decision Making** | Not enough data | Not enough data | Not enough data | 

---
## Categories

**Unique to Amazon Lex (2):** [Bot Platforms](https://www.g2.com/categories/bot-platforms), [Genesys AppFoundry Marketplace](https://www.g2.com/categories/genesys-appfoundry-marketplace)

**Unique to Rasa (4):** [Conversational Support Software](https://www.g2.com/categories/conversational-support), [Conversational Marketing Software](https://www.g2.com/categories/conversational-marketing), [Bot Platforms](https://www.g2.com/categories/bot-platforms), [Conversational Interface Agents Software](https://www.g2.com/categories/conversational-interface-agents)

**Unique to Google Cloud Speech-to-Text (3):** [Transcription Software](https://www.g2.com/categories/transcription), [Voice Recognition Software](https://www.g2.com/categories/voice-recognition), [Speech Analytics Software](https://www.g2.com/categories/speech-analytics)


---
## Reviewer Demographics

### By Company Size

| Segment | Amazon Lex | Rasa | Google Cloud Speech-to-Text | 
|---|---|---|---|
| **Small-Business** | 32.4% | 72.7% | 40.1% | 
| **Mid-Market** | 29.7% | 9.1% | 38.8% | 
| **Enterprise** | 37.8% | 18.2% | 21.1% | 

### By Industry

#### Amazon Lex

- **Computer Software:** 24.3%
- **Information Technology and Services:** 13.5%
- **Pharmaceuticals:** 8.1%
- **Banking:** 5.4%
- **Non-Profit Organization Management:** 5.4%
- **Accounting:** 2.7%
- **Chemicals:** 2.7%
- **Computer & Network Security:** 2.7%
- **Education Management:** 2.7%
- **E-Learning:** 2.7%
- **Other:** 29.7%

#### Rasa

- **Computer Software:** 36.4%
- **Information Technology and Services:** 18.2%
- **Telecommunications:** 9.1%
- **Marketing and Advertising:** 9.1%
- **Graphic Design:** 9.1%
- **Financial Services:** 9.1%
- **Banking:** 9.1%

#### Google Cloud Speech-to-Text

- **Information Technology and Services:** 24.1%
- **Computer Software:** 16.4%
- **Marketing and Advertising:** 3.4%
- **Retail:** 3.4%
- **Human Resources:** 3.4%
- **Financial Services:** 3.4%
- **Staffing and Recruiting:** 3.0%
- **Education Management:** 3.0%
- **Computer & Network Security:** 2.6%
- **Information Services:** 2.2%
- **Other:** 34.9%

---
## Alternatives

### Alternatives to Amazon Lex

- [Google Cloud Dialogflow](https://www.g2.com/products/google-cloud-dialogflow/reviews) — 4.4/5 stars (134 reviews)
- [Azure Bot Service](https://www.g2.com/products/azure-bot-service/reviews) — 4.0/5 stars (16 reviews)
- [LivePerson](https://www.g2.com/products/liveperson/reviews) — 4.3/5 stars (207 reviews)
- [Drift](https://www.g2.com/products/drift/reviews) — 4.4/5 stars (1256 reviews)
- [Qualified](https://www.g2.com/products/qualified/reviews) — 4.9/5 stars (1476 reviews)
- [Botpress](https://www.g2.com/products/botpress/reviews) — 4.5/5 stars (492 reviews)
- [Insider One](https://www.g2.com/products/insider-one/reviews) — 4.8/5 stars (1356 reviews)
- [IBM watsonx Orchestrate](https://www.g2.com/products/ibm-watsonx-orchestrate/reviews) — 4.4/5 stars (392 reviews)
- [Pega Platform](https://www.g2.com/products/pega-platform/reviews) — 4.2/5 stars (278 reviews)
- [Verloop.io](https://www.g2.com/products/verloop-io/reviews) — 4.7/5 stars (230 reviews)

### Alternatives to Rasa

- [Botpress](https://www.g2.com/products/botpress/reviews) — 4.5/5 stars (492 reviews)
- [Kore.AI](https://www.g2.com/products/kore-ai/reviews) — 4.6/5 stars (474 reviews)
- [Fin](https://www.g2.com/products/fin/reviews) — 4.5/5 stars (3851 reviews)
- [Drift](https://www.g2.com/products/drift/reviews) — 4.4/5 stars (1256 reviews)
- [Qualified](https://www.g2.com/products/qualified/reviews) — 4.9/5 stars (1476 reviews)
- [Tidio](https://www.g2.com/products/tidio/reviews) — 4.6/5 stars (1905 reviews)
- [Freshdesk](https://www.g2.com/products/freshdesk/reviews) — 4.4/5 stars (3744 reviews)
- [FreshChat](https://www.g2.com/products/freshworks-freshchat/reviews) — 4.4/5 stars (497 reviews)
- [Birdeye](https://www.g2.com/products/birdeye/reviews) — 4.7/5 stars (4058 reviews)
- [Podium](https://www.g2.com/products/podium/reviews) — 4.6/5 stars (2095 reviews)

### Alternatives to Google Cloud Speech-to-Text

- [Otter.ai](https://www.g2.com/products/otter-ai/reviews) — 4.4/5 stars (487 reviews)
- [Deepgram](https://www.g2.com/products/deepgram/reviews) — 4.6/5 stars (442 reviews)
- [Fathom](https://www.g2.com/products/fathom-video/reviews) — 5.0/5 stars (6807 reviews)
- [Krisp](https://www.g2.com/products/krisp/reviews) — 4.6/5 stars (1174 reviews)
- [AssemblyAI - Speech to Text API](https://www.g2.com/products/assemblyai-speech-to-text-api/reviews) — 4.6/5 stars (120 reviews)
- [Descript](https://www.g2.com/products/descript/reviews) — 4.6/5 stars (886 reviews)
- [Rev](https://www.g2.com/products/rev/reviews) — 4.7/5 stars (590 reviews)
- [Dragon Speech Recognition Software](https://www.g2.com/products/dragon-speech-recognition-software/reviews) — 3.9/5 stars (54 reviews)
- [Genesys Cloud CX](https://www.g2.com/products/genesys-cloud-cx/reviews) — 4.4/5 stars (1546 reviews)
- [IBM Watson Speech to Text](https://www.g2.com/products/ibm-watson-speech-to-text/reviews) — 4.1/5 stars (17 reviews)

---
## Top Discussions

### Amazon Lex

- Title: [What is Amazon Lex used for?](https://www.g2.com/discussions/what-is-amazon-lex-used-for) — 1 comment
  > **Top comment:** "Interactive ai chat bot used for your business use case "

### Rasa

No discussions available for this product.

### Google Cloud Speech-to-Text

No discussions available for this product.

---
**Source:** [G2.com](https://www.g2.com) | [Comparison Page](https://www.g2.com/compare/amazon-lex-vs-rasa-vs-google-cloud-speech-to-text)