AssemblyAI
assemblyai.comSummary
Ask questionsAssemblyAI offers a suite of AI models and APIs for speech-to-text transcription and audio intelligence. Their services enable developers to integrate advanced speech recognition, real-time transcription, and various AI-powered insights like summarization and sentiment analysis into their own applications. They focus on providing accurate and scalable AI infrastructure for voice data.
Features7/13
See allMust Have
5 of 5
Conversational AI
API Access
Safety & Alignment Framework
Fine-Tuning & Custom Models
Enterprise Solutions
Other
2 of 8
Multimodal AI
Research & Publications
Image Generation
Code Generation
Security & Red Teaming
Synthetic Media Provenance
Threat Intelligence Reporting
Global Affairs & Policy
PricingUsage-based
See allSlam Highest accuracy transcription powered by LLM intelligence
- understands context, not just words
- Only available in English
Universal Fast, accurate transcription across 99 languages
- exceptional accuracy straight out of the box
Universal-Streaming Ultra-fast, ultra-accurate real-time transcription
- Built-in turn detection
- unlimited concurrency
Entity Detection
- Identify a wide range of entities that are spoken in your audio files, such as person and company names, email addresses, dates, and locations.
Topic Detection
- Label the topics that are spoken in your audio and video files. The predicted topic labels follow the standardized IAB Taxonomy, which makes them suitable for contextual targeting.
Key Phrases
- Accurately identify significant words and phrases in your transcription, enabling you to extract the most pertinent concepts or highlights from your audio/video file.
PII Audio Redaction
PII Redaction
- Identify and remove Personally Identifiable Information, such as phone numbers and social security numbers, from the transcription text before it is returned to you.
Sentiment Analysis
- With Sentiment Analysis, AssemblyAI can detect the sentiment of each sentence of speech spoken in your audio files.
Content Moderation
- Detect sensitive content in your audio and video files - such as hate speech, violence, sensitive social issues, alcohol, drugs, and more.
Auto Chapters
- Automatically generate a summary over time for audio and video files.
Summarization
- Leverage our AI-powered Summarization models to automatically summarize audio/video data in your products at scale. Customize the summary types to best fit your use case.
Claude 4 Opus
- Model with superior performance on complex reasoning tasks, advanced creative work, and sophisticated problem-solving.
Claude 4 Sonnet
- Model with enhanced reasoning and improved performance for everyday tasks while maintaining speed and cost-effectiveness.
Claude 3.7 Sonnet
- Offers enhanced reasoning capabilities, strong at complex reasoning tasks.
Claude 3.5 Sonnet
- A mid-tier upgrade balancing power and performance.
Claude 3.5 Haiku
- The fastest model in the family, optimized for quick responses while maintaining good reasoning.
Claude 3 Opus
- The most powerful legacy Claude 3 model, excels at complex writing and analysis.
Claude 3 Haiku
- A legacy model with a balanced combination of performance and speed for efficient, high-throughput tasks.
Rationale
AssemblyAI provides AI models primarily for speech-to-text and speech understanding, which directly aligns with conversational AI capabilities. They offer extensive API access for developers to integrate their models. The website highlights enterprise solutions with advanced security and compliance (SOC 2, ISO 27001, HIPAA BAA), indicating a strong safety and alignment framework. While not explicitly 'fine-tuning' in the traditional sense, their 'Slam-1' model offers 'customization via prompting' and 'domain-specific customization—no retraining needed,' which serves a similar purpose of adapting models. They also offer 'Multichannel' transcription and 'LeMUR' which applies LLMs to spoken data, indicating multimodal capabilities. Furthermore, they emphasize their 'Leaders in Speech AI research and deep learning' and 'Research first' approach, aligning with research and publications.
