# Deepgram, Google Cloud Speech-to-Text vs AssemblyAI - Speech to Text API Comparison

| | Deepgram | Google Cloud Speech-to-Text | AssemblyAI - Speech to Text API | 
|---|---|---|---|
| **Star Rating** | 4.6 out of 5 | 4.6 out of 5 | 4.6 out of 5 | 
| **Total Reviews** | 442 | 239 | 121 | 
| **Largest Market Segment** | Small-Business (80.6% of reviews) | Small-Business (39.9% of reviews) | Small-Business (78.5% of reviews) | 
| **Entry Level Price** | Contact Us | Pay As You Go Per Month | Free | 

---
## Top Pros & Cons

### Deepgram

Pros:
- Accuracy (41 reviews)
- Speed (39 reviews)

Cons:
- Limited Language Support (19 reviews)
- Pricing Issues (15 reviews)

### 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)

### AssemblyAI - Speech to Text API

Pros:
- Accuracy (34 reviews)
- Ease of Use (24 reviews)

Cons:
- Limited Language Support (10 reviews)
- Pricing Issues (8 reviews)

---
## Ratings Comparison
| Rating | Deepgram | Google Cloud Speech-to-Text | AssemblyAI - Speech to Text API | 
|---|---|---|---|
  | **Meets Requirements** | 8.8 (300 reviews) | 9.1 (162 reviews) | 8.9 (91 reviews) | 
  | **Ease of Use** | 9.1 (308 reviews) | 9.3 (164 reviews) | 9.1 (93 reviews) | 
  | **Ease of Setup** | 9.0 (206 reviews) | 8.7 (45 reviews) | 9.0 (81 reviews) | 
  | **Ease of Admin** | 8.9 (95 reviews) | 8.8 (34 reviews) | 8.6 (36 reviews) | 
  | **Quality of Support** | 8.8 (259 reviews) | 8.9 (151 reviews) | 8.8 (68 reviews) | 
  | **Has the product been a good partner in doing business?** | 9.0 (94 reviews) | 8.9 (32 reviews) | 9.0 (34 reviews) | 
  | **Product Direction (% positive)** | 9.4 (298 reviews) | 9.6 (154 reviews) | 9.7 (89 reviews) | 

---
## Pricing

### Deepgram

#### Entry-Level Pricing

Plan: Premium

Price: Contact Us

Description: Ready to scale up and need to transcribe more than 10K hours annually? Learn about tailored accuracy gains, volume pricing, private cloud, on-prem deployments, and dedicated support.

Key Features:
- All features listed at deepgram.com/pricing

[Browse all 2 editions](https://www.g2.com/products/deepgram/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

### AssemblyAI - Speech to Text API

#### Entry-Level Pricing

Plan: Get started at no cost

Price: Free

Description: Evaluate platform capabilities in a low-risk, self-serve environment. 

Key Features:
- Industry-leading speech to text and audio intelligence
- Speech recognition
- Speaker diarization

[Browse all 2 editions](https://www.g2.com/products/assemblyai-speech-to-text-api/pricing)

#### Free Trial

Yes

---
## Features Comparison By Category

### Transcription

| Product | Score | Reviews |
|---|---|---|
| **Deepgram** | N/A | N/A |
| **Google Cloud Speech-to-Text** | 8.9/10 | 99 |
| **AssemblyAI - Speech to Text API** | N/A | N/A |

#### Voice

| Feature | Deepgram | Google Cloud Speech-to-Text | AssemblyAI - Speech to Text API | 
|---|---|---|---|
| **Dictation** | Not enough data | 9.2 (86 reviews) | Not enough data | 
| **Accuracy** | Not enough data | 8.7 (92 reviews) | Not enough data | 

#### Transcription

| Feature | Deepgram | Google Cloud Speech-to-Text | AssemblyAI - Speech to Text API | 
|---|---|---|---|
| **Speaker Identification** | Not enough data | 8.8 (83 reviews) | Not enough data | 
| **Timecode Management** | Not enough data | 8.9 (79 reviews) | Not enough data | 
| **Closed Captioning** | Not enough data | 9.0 (78 reviews) | Not enough data | 
| **Custom Dictionary** | Not enough data | 8.9 (75 reviews) | Not enough data | 

#### Editing

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

#### Integration

| Feature | Deepgram | Google Cloud Speech-to-Text | AssemblyAI - Speech to Text API | 
|---|---|---|---|
| **Data Security** | Not enough data | 9.1 (74 reviews) | Not enough data | 
| **API** | Not enough data | 9.1 (79 reviews) | Not enough data | 
| **Voice Files** | Not enough data | 9.0 (82 reviews) | Not enough data | 
| **Live Captioning** | Not enough data | 8.8 (78 reviews) | Not enough data | 
| **Integrates With Existing Applications** | Not enough data | 9.1 (77 reviews) | Not enough data | 

#### Agentic AI - Transcription

| Feature | Deepgram | Google Cloud Speech-to-Text | AssemblyAI - Speech to Text API | 
|---|---|---|---|
| **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 | 

### Text to Speech

| Product | Score | Reviews |
|---|---|---|
| **Deepgram** | 8.8/10 | 33 |
| **Google Cloud Speech-to-Text** | N/A | N/A |
| **AssemblyAI - Speech to Text API** | N/A | N/A |

#### Integration

| Feature | Deepgram | Google Cloud Speech-to-Text | AssemblyAI - Speech to Text API | 
|---|---|---|---|
| **Application Integration** | 9.0 (24 reviews) | Not enough data | Not enough data | 
| **Real-Time Streaming** | 9.0 (24 reviews) | Not enough data | Not enough data | 
| **Integration** | 10.0 (7 reviews) | Not enough data | Not enough data | 
| **Integration** | 10.0 (5 reviews) | Not enough data | Not enough data | 

#### Speech Output

| Feature | Deepgram | Google Cloud Speech-to-Text | AssemblyAI - Speech to Text API | 
|---|---|---|---|
| **Volume** | 8.3 (21 reviews) | Not enough data | Not enough data | 
| **Pitch** | 8.0 (21 reviews) | Not enough data | Not enough data | 
| **Speed** | 8.7 (23 reviews) | Not enough data | Not enough data | 
| **Pronunciation** | 8.1 (24 reviews) | Not enough data | Not enough data | 
| **Accent** | 8.5 (24 reviews) | Not enough data | Not enough data | 
| **Emotion** | 8.0 (24 reviews) | Not enough data | Not enough data | 
| **Speaking Styles** | 8.0 (21 reviews) | Not enough data | Not enough data | 
| **Speech Output** | 9.4 (6 reviews) | Not enough data | Not enough data | 
| **Speech Output** | 9.3 (5 reviews) | Not enough data | Not enough data | 
| **Speech Output** | Not enough data | Not enough data | Not enough data | 
| **Speech Output** | Not enough data | Not enough data | Not enough data | 
| **Speech Output** | Not enough data | Not enough data | Not enough data | 
| **Speech Output** | Not enough data | Not enough data | Not enough data | 
| **Speech Output** | Not enough data | Not enough data | Not enough data | 

#### Audio Format

| Feature | Deepgram | Google Cloud Speech-to-Text | AssemblyAI - Speech to Text API | 
|---|---|---|---|
| **Natural Sounding Voices** | 8.8 (19 reviews) | Not enough data | Not enough data | 
| **Audio Format Flexibility** | 9.0 (20 reviews) | Not enough data | Not enough data | 
| **Audio Optimization** | 8.4 (20 reviews) | Not enough data | Not enough data | 
| **Audio Format** | Not enough data | Not enough data | Not enough data | 

#### Generative AI

| Feature | Deepgram | Google Cloud Speech-to-Text | AssemblyAI - Speech to Text API | 
|---|---|---|---|
| **AI Text-to-Speech** | 8.8 (22 reviews) | Not enough data | Not enough data | 
| **Gen AI ** | Not enough data | Not enough data | Not enough data | 

### Synthetic Media

| Product | Score | Reviews |
|---|---|---|
| **Deepgram** | N/A | N/A |
| **Google Cloud Speech-to-Text** | N/A | N/A |
| **AssemblyAI - Speech to Text API** | N/A | N/A |

#### Audio

| Feature | Deepgram | Google Cloud Speech-to-Text | AssemblyAI - Speech to Text API | 
|---|---|---|---|
| **Accents** | Not enough data | Not enough data | Not enough data | 
| **Voice Cloning** | Not enough data | Not enough data | Not enough data | 
| **Range of Tones** | Not enough data | Not enough data | Not enough data | 
| **Languages** | Not enough data | Not enough data | Not enough data | 

#### Video

| Feature | Deepgram | Google Cloud Speech-to-Text | AssemblyAI - Speech to Text API | 
|---|---|---|---|
| **Closed Captions** | Not enough data | Not enough data | Not enough data | 
| **Avatar Quality** | Not enough data | Not enough data | Not enough data | 
| **Custom Avatars** | Not enough data | Not enough data | Not enough data | 
| **Video Editing Capabilities** | Not enough data | Not enough data | Not enough data | 

#### Image

| Feature | Deepgram | Google Cloud Speech-to-Text | AssemblyAI - Speech to Text API | 
|---|---|---|---|
| **Text to Image** | Not enough data | Not enough data | Not enough data | 
| **Realism** | Not enough data | Not enough data | Not enough data | 

#### Text

| Feature | Deepgram | Google Cloud Speech-to-Text | AssemblyAI - Speech to Text API | 
|---|---|---|---|
| **Text Optimization** | Not enough data | Not enough data | Not enough data | 
| **Range of Sentiments** | Not enough data | Not enough data | Not enough data | 

#### Platform

| Feature | Deepgram | Google Cloud Speech-to-Text | AssemblyAI - Speech to Text API | 
|---|---|---|---|
| **Collaboration** | Not enough data | Not enough data | Not enough data | 
| **Speed of Generation** | Not enough data | Not enough data | Not enough data | 

#### Generative AI

| Feature | Deepgram | Google Cloud Speech-to-Text | AssemblyAI - Speech to Text API | 
|---|---|---|---|
| **AI Text Generation** | Not enough data | Not enough data | Not enough data | 
| **AI Text Summarization** | Not enough data | Not enough data | Not enough data | 
| **AI Text-to-Image** | Not enough data | Not enough data | Not enough data | 
| **AI Text-to-Speech** | Not enough data | Not enough data | Not enough data | 
| **AI Image-to-Text** | Not enough data | Not enough data | Not enough data | 
| **AI Text-to-Video** | Not enough data | Not enough data | Not enough data | 
| **AI Text-to-3D** | Not enough data | Not enough data | Not enough data | 
| **AI Text-to-Music** | Not enough data | Not enough data | Not enough data | 

### Speech Analytics

| Product | Score | Reviews |
|---|---|---|
| **Deepgram** | N/A | N/A |
| **Google Cloud Speech-to-Text** | 9.3/10 | 35 |
| **AssemblyAI - Speech to Text API** | N/A | N/A |

#### Generative AI

| Feature | Deepgram | Google Cloud Speech-to-Text | AssemblyAI - Speech to Text API | 
|---|---|---|---|
| **AI Text Summarization** | Not enough data | 9.4 (31 reviews) | Not enough data | 

### Voice Recognition

| Product | Score | Reviews |
|---|---|---|
| **Deepgram** | 8.5/10 | 71 |
| **Google Cloud Speech-to-Text** | 9.3/10 | 13 |
| **AssemblyAI - Speech to Text API** | 8.0/10 | 67 |

#### Deployment & Integration - Voice Recognition

| Feature | Deepgram | Google Cloud Speech-to-Text | AssemblyAI - Speech to Text API | 
|---|---|---|---|
| **Installation & setup Ease** | 9.1 (43 reviews) | 9.7 (6 reviews) | 8.7 (62 reviews) | 
| **Developer API & SDK** | 9.4 (47 reviews) | 8.7 (5 reviews) | 9.2 (64 reviews) | 
| **Software Integration** | 9.0 (33 reviews) | 10.0 (6 reviews) | 8.4 (62 reviews) | 
| **Multi-Device Support** | 8.3 (28 reviews) | 9.3 (5 reviews) | 7.8 (55 reviews) | 

#### Performance Optimization - Voice Recognition

| Feature | Deepgram | Google Cloud Speech-to-Text | AssemblyAI - Speech to Text API | 
|---|---|---|---|
| **Accuracy in Noisy Settings** | 8.4 (40 reviews) | 8.1 (8 reviews) | 8.1 (59 reviews) | 
| **High-Volume Scalability** | 8.5 (35 reviews) | 9.3 (5 reviews) | 8.5 (57 reviews) | 
| **Environmental Noise Adaptation** | 8.1 (32 reviews) | 9.2 (6 reviews) | 8.3 (54 reviews) | 
| **Multilingual Voice Recognition** | 7.4 (36 reviews) | 9.8 (9 reviews) | 7.8 (57 reviews) | 
| **Low-Latency Processing** | 9.1 (50 reviews) | 8.9 (6 reviews) | 7.8 (58 reviews) | 

#### Security & Compliance - Voice Recognition

| Feature | Deepgram | Google Cloud Speech-to-Text | AssemblyAI - Speech to Text API | 
|---|---|---|---|
| **Liveness Detection** | 8.5 (31 reviews) | 9.7 (5 reviews) | 7.4 (50 reviews) | 
| **Regulatory Compliance** | 8.6 (29 reviews) | 9.7 (5 reviews) | 7.9 (51 reviews) | 
| **Secure Communication Channels** | 9.2 (28 reviews) | 9.3 (5 reviews) | 8.1 (50 reviews) | 

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

| Feature | Deepgram | Google Cloud Speech-to-Text | AssemblyAI - Speech to Text API | 
|---|---|---|---|
| **Voice-Based Authentication** | 8.3 (25 reviews) | 9.0 (5 reviews) | 7.0 (49 reviews) | 
| **Machine Learning & Adaptive Speech Recognition** | 8.3 (30 reviews) | 9.4 (6 reviews) | 7.7 (50 reviews) | 
| **Speaker Differentiation** | 8.1 (34 reviews) | 9.7 (6 reviews) | 8.0 (55 reviews) | 
| **Sentiment & Tone Analysis** | 8.2 (29 reviews) | 9.7 (5 reviews) | 7.5 (51 reviews) | 

#### Agentic AI - Voice Recognition

| Feature | Deepgram | Google Cloud Speech-to-Text | AssemblyAI - Speech to Text API | 
|---|---|---|---|
| **Natural Language Interaction** | 8.6 (29 reviews) | 9.3 (5 reviews) | 7.8 (25 reviews) | 

---
## Categories
**Shared Categories (1):** [Voice Recognition Software](https://www.g2.com/categories/voice-recognition)

**Unique to Deepgram (1):** [Text to Speech Software](https://www.g2.com/categories/text-to-speech)

**Unique to Google Cloud Speech-to-Text (2):** [Transcription Software](https://www.g2.com/categories/transcription), [Speech Analytics Software](https://www.g2.com/categories/speech-analytics)



---
## Reviewer Demographics

### By Company Size

| Segment | Deepgram | Google Cloud Speech-to-Text | AssemblyAI - Speech to Text API | 
|---|---|---|---|
| **Small-Business** | 80.6% | 39.9% | 78.5% | 
| **Mid-Market** | 16.8% | 38.6% | 16.8% | 
| **Enterprise** | 2.5% | 21.5% | 4.7% | 

### By Industry

#### Deepgram

- **Computer Software:** 29.9%
- **Information Technology and Services:** 16.6%
- **Hospital & Health Care:** 4.7%
- **Telecommunications:** 4.1%
- **Higher Education:** 3.2%
- **Media Production:** 2.9%
- **Entertainment:** 2.0%
- **Education Management:** 1.7%
- **Marketing and Advertising:** 1.7%
- **Health, Wellness and Fitness:** 1.7%
- **Other:** 31.4%

#### Google Cloud Speech-to-Text

- **Information Technology and Services:** 24.0%
- **Computer Software:** 16.7%
- **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:** 2.1%
- **Other:** 34.8%

#### AssemblyAI - Speech to Text API

- **Computer Software:** 21.0%
- **Information Technology and Services:** 11.0%
- **Consulting:** 6.0%
- **Financial Services:** 6.0%
- **Consumer Services:** 4.0%
- **Mental Health Care:** 4.0%
- **Education Management:** 3.0%
- **Higher Education:** 3.0%
- **Insurance:** 3.0%
- **Market Research:** 3.0%
- **Other:** 36.0%

---
## Alternatives

### Alternatives to Deepgram

- [Krisp](https://www.g2.com/products/krisp/reviews) — 4.6/5 stars (1178 reviews)
- [Otter.ai](https://www.g2.com/products/otter-ai/reviews) — 4.4/5 stars (492 reviews)
- [Rev](https://www.g2.com/products/rev/reviews) — 4.7/5 stars (590 reviews)
- [Descript](https://www.g2.com/products/descript/reviews) — 4.6/5 stars (891 reviews)
- [Synthesia](https://www.g2.com/products/synthesia/reviews) — 4.6/5 stars (2748 reviews)
- [VEED](https://www.g2.com/products/veed/reviews) — 4.5/5 stars (2115 reviews)
- [HeyGen](https://www.g2.com/products/heygen/reviews) — 4.8/5 stars (1698 reviews)
- [Creatify AI](https://www.g2.com/products/creatify-labs-inc-creatify-ai/reviews) — 4.8/5 stars (1492 reviews)
- [Murf.ai](https://www.g2.com/products/murf-ai/reviews) — 4.7/5 stars (1412 reviews)
- [ElevenLabs](https://www.g2.com/products/elevenlabsio/reviews) — 4.5/5 stars (1139 reviews)

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

- [Otter.ai](https://www.g2.com/products/otter-ai/reviews) — 4.4/5 stars (492 reviews)
- [Fathom](https://www.g2.com/products/fathom-video/reviews) — 5.0/5 stars (6832 reviews)
- [Krisp](https://www.g2.com/products/krisp/reviews) — 4.6/5 stars (1178 reviews)
- [Descript](https://www.g2.com/products/descript/reviews) — 4.6/5 stars (891 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 (1547 reviews)
- [IBM Watson Speech to Text](https://www.g2.com/products/ibm-watson-speech-to-text/reviews) — 4.1/5 stars (17 reviews)
- [Amazon Transcribe](https://www.g2.com/products/amazon-transcribe/reviews) — 3.9/5 stars (16 reviews)
- [NiCE CXone](https://www.g2.com/products/nice-cxone/reviews) — 4.3/5 stars (1730 reviews)

### Alternatives to AssemblyAI - Speech to Text API

- [OpenAI Whisper](https://www.g2.com/products/openai-whisper/reviews) — 4.6/5 stars (20 reviews)
- [Krisp](https://www.g2.com/products/krisp/reviews) — 4.6/5 stars (1178 reviews)
- [Amazon Transcribe](https://www.g2.com/products/amazon-transcribe/reviews) — 3.9/5 stars (16 reviews)
- [Otter.ai](https://www.g2.com/products/otter-ai/reviews) — 4.4/5 stars (492 reviews)
- [Rev](https://www.g2.com/products/rev/reviews) — 4.7/5 stars (590 reviews)
- [Speechmatics](https://www.g2.com/products/speechmatics/reviews) — 4.8/5 stars (60 reviews)
- [Notta](https://www.g2.com/products/notta/reviews) — 4.4/5 stars (234 reviews)
- [IBM Watson Speech to Text](https://www.g2.com/products/ibm-watson-speech-to-text/reviews) — 4.1/5 stars (17 reviews)
- [GlobalLink](https://www.g2.com/products/globallink/reviews) — 4.5/5 stars (186 reviews)
- [Gladia](https://www.g2.com/products/gladia/reviews) — 4.8/5 stars (23 reviews)

---
## Top Discussions

### Deepgram

- Title: [What is Deepgram used for?](https://www.g2.com/discussions/what-is-deepgram-used-for) — 1 comment
  > **Top comment:** "Deepgram is one of cloud provider for voice domain related services including speech to text, text to speech and other speech and text based analysis tasks..."
- Title: [What is the best way to use the keywords, search, numerals and other parameters inside the API call?](https://www.g2.com/discussions/what-is-the-best-way-to-use-the-keywords-search-numerals-and-other-parameters-inside-the-api-call) — 1 comment, 1 upvote *(includes official response)*
  > **Top comment:** "The Spanish model does not support the numerals=true flag that you can use in the English models at the time of writing (Aug 27,2021). Search should work,..."

### Google Cloud Speech-to-Text

No discussions available for this product.

### AssemblyAI - Speech to Text API

No discussions available for this product.

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