AssemblyAI vs LangSmith
Side-by-side comparison of features, pricing, and integrations.
Quick Verdict
AssemblyAI offers more features (38 vs 36) and more integrations (21 vs 9). Starting price: AssemblyAI at Free vs LangSmith at $39/mo. AssemblyAI has 38 unique features while LangSmith has 36 unique features, with 0 features in common.
| AssemblyAI | LangSmith | |
|---|---|---|
| Category | AI & Machine Learning | AI & Machine Learning |
| Total Features | 38 | 36 |
| AI-Powered Features | 28 | 6 |
| Starting Price | Free | $39/mo |
| Pricing Tiers | 3 | 3 |
| Integrations | 21 | 9 |
| Shared Features | 0 | |
| Shared Integrations | 0 | |
| Data Quality | 90% | 80% |
Feature Comparison by Category
AI Integration (1 vs 0)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| LLM Gateway |
AI Model (3 vs 0)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| Universal-2 Model | ||
| Universal-3 Pro Model | ||
| Universal-Streaming Model |
API (0 vs 1)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| Assistants API |
Administration (0 vs 1)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| Organization Roles |
Agent Creation (0 vs 1)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| Agent Builder |
Analytics (0 vs 1)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| Insights (beta) |
Applications (1 vs 0)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| Voice Agent Support |
Automation (0 vs 1)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| Cron Scheduling |
Collaboration (0 vs 1)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| Agent Template Sharing |
Compatibility (0 vs 1)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| Framework Neutral |
Compliance (2 vs 0)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| EU Data Residency | ||
| HIPAA Compliance |
Content Moderation (2 vs 0)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| Content Moderation | ||
| Profanity Filtering |
Core Transcription (2 vs 0)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| Speech-to-Text (Pre-recorded) | ||
| Streaming Speech-to-Text |
Customization (3 vs 0)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| Custom Spelling | ||
| Keyterms Prompting | ||
| Plain Language Instructions |
Data Management (0 vs 2)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| Bulk Data Export | ||
| Dataset Collection |
Deployment (0 vs 5)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| 1-Click Deploy | ||
| Agent Deployment | ||
| Auto-scaling | ||
| LangSmith Studio | ||
| Memory Management |
Developer Tools (2 vs 0)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| API Documentation | ||
| No-code Playground |
Development (0 vs 1)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| Playground |
Evaluation (0 vs 2)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| Evaluation | ||
| Online and Offline Evals |
Feedback (0 vs 1)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| Annotation Queues |
Hosting (0 vs 2)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| Hybrid Hosting | ||
| Self-Hosted Option |
Infrastructure (1 vs 0)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| Self-hosted Deployments |
Integration (1 vs 3)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| API Triggers | ||
| LiveKit SDK Integration | ||
| MCP Server Integration | ||
| MCP Server Tool Integration |
Localization (1 vs 0)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| Multi-language Streaming |
Monitoring (0 vs 1)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| Monitoring and Alerting |
Observability (0 vs 3)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| Observability | ||
| Real-time Streaming | ||
| Tracing |
Prompt Management (0 vs 2)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| Canvas | ||
| Prompt Hub |
SDK (0 vs 2)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| Python SDK | ||
| TypeScript SDK |
Security (0 vs 4)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| Agent Authorization | ||
| Authentication & Authorization for LangGraph APIs | ||
| Custom SSO | ||
| Role-Based Access Control |
Security/Privacy (2 vs 0)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| PII Audio Redaction | ||
| PII Text Redaction |
Speech Processing (1 vs 0)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| End-of-Turn Detection |
Speech Understanding (6 vs 0)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| Entity Detection | ||
| Language Detection | ||
| Sentiment Analysis | ||
| Speaker Diarization | ||
| Speaker Identification | ||
| Translation |
Support (2 vs 0)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| Custom SLAs and SLOs | ||
| Dedicated Technical Support |
Templates (0 vs 1)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| Prebuilt Templates |
Text Analysis (3 vs 0)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| Filler Words Detection | ||
| Key Phrases | ||
| Topic Detection |
Text Processing (5 vs 0)
| Feature | AssemblyAI | LangSmith |
|---|---|---|
| Auto Chapters | ||
| Auto Punctuation and Casing | ||
| Custom Formatting | ||
| Summarization | ||
| Word-level Timestamps |
Unique Features
Only in AssemblyAI (38)
LLM Gateway
Universal-2 Model
Universal-3 Pro Model
Universal-Streaming Model
Voice Agent Support
EU Data Residency
HIPAA Compliance
Content Moderation
Profanity Filtering
Speech-to-Text (Pre-recorded)
Streaming Speech-to-Text
Custom Spelling
Keyterms Prompting
Plain Language Instructions
API Documentation
No-code Playground
Self-hosted Deployments
LiveKit SDK Integration
Multi-language Streaming
PII Audio Redaction
+ 18 more unique features
Only in LangSmith (36)
Organization Roles
Agent Builder
Insights (beta)
Assistants API
Cron Scheduling
Agent Template Sharing
Framework Neutral
Bulk Data Export
Dataset Collection
1-Click Deploy
Agent Deployment
Auto-scaling
LangSmith Studio
Memory Management
Playground
Evaluation
Online and Offline Evals
Annotation Queues
Hybrid Hosting
Self-Hosted Option
+ 16 more unique features
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