# AssemblyAI - Speech to Text API vs Speechmatics Comparison
---
## AI Generated Summary
- **G2 reviewers report** that Speechmatics excels in **accuracy** , particularly in noisy environments, with users highlighting its low word error rate and effective transcription in multiple languages. One user noted, "I find the features for real-time low latency processing very good," showcasing its reliability for various applications.
- **Users say** that AssemblyAI - Speech to Text API offers a **developer-friendly experience** , with clear documentation and easy integration. Reviewers appreciate features like speaker diarization and timestamps, stating, "The API and SDKs are very developer-friendly, and the documentation is clear and easy to follow."
- **According to verified reviews** , Speechmatics stands out for its **ease of use** , receiving high praise for its intuitive setup process. Users mentioned, "Speechmatics made it very simple to set up AI transcription for our product," indicating a smooth onboarding experience.
- **Reviewers mention** that AssemblyAI - Speech to Text API is particularly effective in handling **long audio files** and conversations with multiple speakers. One user highlighted its accuracy in transcribing calls, even with challenging accents, saying, "I really like how accurate AssemblyAI is in transcribing calls."
- **Users report** that Speechmatics provides excellent **customer support** , with many expressing satisfaction with the assistance received during integration challenges. A user noted, "Overall we're very pleased with the results we are achieving, and very pleased with the help we received."
- **G2 reviewers indicate** that while both products are competitively priced with free entry-level options, AssemblyAI has a larger market presence, which may appeal to businesses looking for a widely adopted solution. However, Speechmatics maintains a strong focus on high-quality transcription, particularly for small businesses, as noted by its significant user base in that segment.



| | AssemblyAI - Speech to Text API | Speechmatics | 
|---|---|---|
| **Star Rating** | 4.6 out of 5 | 4.8 out of 5 | 
| **Total Reviews** | 123 | 65 | 
| **Largest Market Segment** | Small-Business (78.9% of reviews) | Small-Business (55.4% of reviews) | 
| **Entry Level Price** | Free | Free 480 Minutes of Audio Free Per Month | 

---
## Top Pros & Cons

### AssemblyAI - Speech to Text API

Pros:
- Accuracy (36 reviews)
- Ease of Use (26 reviews)

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

### Speechmatics

Pros:
- Accuracy (23 reviews)
- Transcription Accuracy (17 reviews)

Cons:
- Limited Language Support (5 reviews)
- Limited Features (4 reviews)

---
## Ratings Comparison
| Rating | AssemblyAI - Speech to Text API | Speechmatics | 
|---|---|---|
  | **Meets Requirements** | 8.9 (93 reviews) | 9.2 (57 reviews) | 
  | **Ease of Use** | 9.1 (95 reviews) | 9.2 (59 reviews) | 
  | **Ease of Setup** | 9.0 (83 reviews) | 8.9 (50 reviews) | 
  | **Ease of Admin** | 8.6 (36 reviews) | 9.1 (22 reviews) | 
  | **Quality of Support** | 8.9 (70 reviews) | 9.2 (52 reviews) | 
  | **Has the product been a good partner in doing business?** | 9.0 (34 reviews) | 9.5 (22 reviews) | 
  | **Product Direction (% positive)** | 9.7 (91 reviews) | 9.6 (55 reviews) | 

---
## Pricing

### 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

### Speechmatics

#### Entry-Level Pricing

Plan: Free

Price: Free 480 Minutes of Audio Free Per Month

Description: Perfect for evaluation, prototyping, and getting hands-on with foundational speech technology.

Unlock access to Speechmatics’ enterprise-grade speech-to-text and Voice AI products at no cost. Designed for developers and technical teams who want to test our API and explore capabilities across 55+ languages. Experience best-in-market accuracy, real-time and batch transcription, and flexible deployment options.

Key Features:
- 55+ languages
- Speech-to-text features
- Free 480 minutes per month

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

#### Free Trial

Yes

---
## Features Comparison By Category

### Transcription

| Product | Score | Reviews |
|---|---|---|
| **AssemblyAI - Speech to Text API** | N/A | N/A |
| **Speechmatics** | 8.5/10 | 28 |

#### Voice

| Feature | AssemblyAI - Speech to Text API | Speechmatics | 
|---|---|---|
| **Dictation** | Not enough data | 8.8 (25 reviews) | 
| **Accuracy** | Not enough data | 9.2 (27 reviews) | 

#### Transcription

| Feature | AssemblyAI - Speech to Text API | Speechmatics | 
|---|---|---|
| **Speaker Identification** | Not enough data | 8.5 (28 reviews) | 
| **Timecode Management** | Not enough data | 9.0 (25 reviews) | 
| **Closed Captioning** | Not enough data | 8.8 (24 reviews) | 
| **Custom Dictionary** | Not enough data | 8.9 (24 reviews) | 

#### Editing

| Feature | AssemblyAI - Speech to Text API | Speechmatics | 
|---|---|---|
| **Collaboration** | Not enough data | Feature Not Available | 
| **Spell Check and Punctuation** | Not enough data | 8.4 (24 reviews) | 
| **Text Editing** | Not enough data | 8.4 (21 reviews) | 
| **Translation** | Not enough data | 8.6 (22 reviews) | 

#### Integration

| Feature | AssemblyAI - Speech to Text API | Speechmatics | 
|---|---|---|
| **Data Security** | Not enough data | 8.5 (24 reviews) | 
| **API** | Not enough data | 8.8 (27 reviews) | 
| **Voice Files** | Not enough data | 9.1 (23 reviews) | 
| **Live Captioning** | Not enough data | 8.9 (22 reviews) | 
| **Integrates With Existing Applications** | Not enough data | 8.2 (22 reviews) | 

#### Agentic AI - Transcription

| Feature | AssemblyAI - Speech to Text API | Speechmatics | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | 7.4 (14 reviews) | 
| **Cross-system Integration** | Not enough data | 8.3 (14 reviews) | 
| **Decision Making** | Not enough data | 7.4 (12 reviews) | 

### AI Agents For Business Operations

| Product | Score | Reviews |
|---|---|---|
| **AssemblyAI - Speech to Text API** | N/A | N/A |
| **Speechmatics** | N/A | N/A |

#### Responses

| Feature | AssemblyAI - Speech to Text API | Speechmatics | 
|---|---|---|
| **Personalization** | Not enough data | Not enough data | 
| **Route To Human** | Not enough data | Not enough data | 
| **Natural Language Understanding (NLU)** | Not enough data | Not enough data | 

#### Automation - AI Agents

| Feature | AssemblyAI - Speech to Text API | Speechmatics | 
|---|---|---|
| **Sales Follow-Up** | Not enough data | Not enough data | 
| **Customer Interaction Automation** | Not enough data | Not enough data | 
| **Lead Generation** | Not enough data | Not enough data | 
| **Document Processing** | Not enough data | Not enough data | 
| **Feedback Collection** | Not enough data | Not enough data | 

#### Platform

| Feature | AssemblyAI - Speech to Text API | Speechmatics | 
|---|---|---|
| **Conversation Editor** | Not enough data | Not enough data | 
| **Integration** | Not enough data | Not enough data | 
| **Human-In-The-Loop** | Not enough data | Not enough data | 

#### Autonomy -  AI Agents

| Feature | AssemblyAI - Speech to Text API | Speechmatics | 
|---|---|---|
| **Independent Decision Making** | Not enough data | Not enough data | 
| **Adaptive Responses** | Not enough data | Not enough data | 
| **Task Execution** | Not enough data | Not enough data | 
| **Problem Solving** | Not enough data | Not enough data | 

#### Generative AI

| Feature | AssemblyAI - Speech to Text API | Speechmatics | 
|---|---|---|
| **AI Text Generation** | Not enough data | Not enough data | 
| **AI Text Summarization** | Not enough data | Not enough data | 

### Voice Recognition

| Product | Score | Reviews |
|---|---|---|
| **AssemblyAI - Speech to Text API** | 8.0/10 | 69 |
| **Speechmatics** | 9.0/10 | 23 |

#### Deployment & Integration - Voice Recognition

| Feature | AssemblyAI - Speech to Text API | Speechmatics | 
|---|---|---|
| **Installation & setup Ease** | 8.8 (64 reviews) | 9.4 (14 reviews) | 
| **Developer API & SDK** | 9.2 (64 reviews) | 9.3 (16 reviews) | 
| **Software Integration** | 8.4 (63 reviews) | 9.1 (13 reviews) | 
| **Multi-Device Support** | 7.9 (56 reviews) | 8.9 (12 reviews) | 

#### Performance Optimization - Voice Recognition

| Feature | AssemblyAI - Speech to Text API | Speechmatics | 
|---|---|---|
| **Accuracy in Noisy Settings** | 8.1 (59 reviews) | 9.1 (15 reviews) | 
| **High-Volume Scalability** | 8.5 (57 reviews) | 8.6 (15 reviews) | 
| **Environmental Noise Adaptation** | 8.3 (54 reviews) | 9.4 (13 reviews) | 
| **Multilingual Voice Recognition** | 7.8 (58 reviews) | 9.2 (15 reviews) | 
| **Low-Latency Processing** | 7.8 (59 reviews) | 9.6 (19 reviews) | 

#### Security & Compliance - Voice Recognition

| Feature | AssemblyAI - Speech to Text API | Speechmatics | 
|---|---|---|
| **Liveness Detection** | 7.4 (50 reviews) | 8.6 (13 reviews) | 
| **Regulatory Compliance** | 7.9 (51 reviews) | 9.5 (13 reviews) | 
| **Secure Communication Channels** | 8.1 (50 reviews) | 9.3 (12 reviews) | 

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

| Feature | AssemblyAI - Speech to Text API | Speechmatics | 
|---|---|---|
| **Voice-Based Authentication** | 7.0 (49 reviews) | 8.3 (9 reviews) | 
| **Machine Learning & Adaptive Speech Recognition** | 7.7 (50 reviews) | 8.8 (10 reviews) | 
| **Speaker Differentiation** | 8.0 (56 reviews) | 8.6 (13 reviews) | 
| **Sentiment & Tone Analysis** | 7.5 (52 reviews) | 8.7 (9 reviews) | 

#### Agentic AI - Voice Recognition

| Feature | AssemblyAI - Speech to Text API | Speechmatics | 
|---|---|---|
| **Natural Language Interaction** | 7.8 (25 reviews) | 8.1 (9 reviews) | 

### AI Agents

| Product | Score | Reviews |
|---|---|---|
| **AssemblyAI - Speech to Text API** | N/A | N/A |
| **Speechmatics** | N/A | N/A |

#### Agentic AI - AI Agents

| Feature | AssemblyAI - Speech to Text API | Speechmatics | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | 
| **Multi-step Planning** | Not enough data | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | 
| **Adaptive Learning** | Not enough data | Not enough data | 
| **Natural Language Interaction** | Not enough data | Not enough data | 
| **Proactive Assistance** | Not enough data | Not enough data | 
| **Decision Making** | Not enough data | Not enough data | 

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


**Unique to Speechmatics (2):** [Transcription Software](https://www.g2.com/categories/transcription), [AI Agents For Business Operations](https://www.g2.com/categories/ai-agents-for-business-operations)


---
## Reviewer Demographics

### By Company Size

| Segment | AssemblyAI - Speech to Text API | Speechmatics | 
|---|---|---|
| **Small-Business** | 78.9% | 55.4% | 
| **Mid-Market** | 16.5% | 29.2% | 
| **Enterprise** | 4.6% | 15.4% | 

### By Industry

#### AssemblyAI - Speech to Text API

- **Computer Software:** 20.6%
- **Information Technology and Services:** 11.8%
- **Consulting:** 5.9%
- **Financial Services:** 5.9%
- **Consumer Services:** 3.9%
- **Mental Health Care:** 3.9%
- **Education Management:** 2.9%
- **Higher Education:** 2.9%
- **Insurance:** 2.9%
- **Market Research:** 2.9%
- **Other:** 36.3%

#### Speechmatics

- **Computer Software:** 23.8%
- **Broadcast Media:** 19.0%
- **Information Technology and Services:** 9.5%
- **Hospital & Health Care:** 7.9%
- **Telecommunications:** 6.3%
- **Research:** 6.3%
- **Entertainment:** 3.2%
- **Banking:** 1.6%
- **Civic & Social Organization:** 1.6%
- **Computer & Network Security:** 1.6%
- **Other:** 19.0%

---
## Alternatives

### Alternatives to AssemblyAI - Speech to Text API

- [Deepgram](https://www.g2.com/products/deepgram/reviews) — 4.6/5 stars (446 reviews)
- [Google Cloud Speech-to-Text](https://www.g2.com/products/google-cloud-speech-to-text/reviews) — 4.6/5 stars (240 reviews)
- [OpenAI Whisper](https://www.g2.com/products/openai-whisper/reviews) — 4.6/5 stars (21 reviews)
- [Krisp](https://www.g2.com/products/krisp/reviews) — 4.6/5 stars (1300 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 (496 reviews)
- [Rev](https://www.g2.com/products/rev/reviews) — 4.7/5 stars (591 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)

### Alternatives to Speechmatics

- [Deepgram](https://www.g2.com/products/deepgram/reviews) — 4.6/5 stars (446 reviews)
- [Otter.ai](https://www.g2.com/products/otter-ai/reviews) — 4.4/5 stars (496 reviews)
- [Krisp](https://www.g2.com/products/krisp/reviews) — 4.6/5 stars (1300 reviews)
- [Rev](https://www.g2.com/products/rev/reviews) — 4.7/5 stars (591 reviews)
- [Fathom](https://www.g2.com/products/fathom-video/reviews) — 5.0/5 stars (6895 reviews)
- [Fireflies.ai](https://www.g2.com/products/fireflies-ai/reviews) — 4.7/5 stars (750 reviews)
- [MeetGeek](https://www.g2.com/products/meetgeek/reviews) — 4.6/5 stars (490 reviews)
- [Descript](https://www.g2.com/products/descript/reviews) — 4.6/5 stars (899 reviews)
- [monday Work Management](https://www.g2.com/products/monday-com/reviews) — 4.7/5 stars (15511 reviews)
- [HubSpot Marketing Hub](https://www.g2.com/products/hubspot-marketing-hub/reviews) — 4.4/5 stars (14818 reviews)

---
## Top Discussions

### AssemblyAI - Speech to Text API

No discussions available for this product.

### Speechmatics

No discussions available for this product.

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