LangSmith
AI Agent & LLM Observability Platform
VS
Speechify
Reads anything aloud with natural voices.
Detailed comparison
Criteria
LangSmith
Speechify
Pricing
Freemium
Freemium
Plans & pricing
Developer: Free, Team: $39/mo, Enterprise: Custom
Free: Free, Premium: $29/mo, Enterprise: Custom
Free trial
No
No
Audience
b2b
b2c
Platforms
Web
Web, Ios, Android
API
Yes
No
Open Source
Proprietary
Proprietary
Integrations
Pagerduty
—
Categories
Dev & Tech, information technology & services, Apps
Content Creation, information technology & services, Text to speech
Popularity
Very High
Very High
Description
LangSmith is a complete AI agent and LLM observability platform. It offers tracing and real-time monitoring to help developers debug agents, find fail...
Speechify is a leading text-to-speech reader that converts any text into natural-sounding audio, enabling over 55 million users to listen to books, PD...
Pricing
LangSmith
Freemium
Speechify
Freemium
Plans & pricing
LangSmith
Developer: Free, Team: $39/mo, Enterprise: Custom
Speechify
Free: Free, Premium: $29/mo, Enterprise: Custom
Free trial
LangSmith
No
Speechify
No
Audience
LangSmith
b2b
Speechify
b2c
Platforms
LangSmith
Web
Speechify
Web, Ios, Android
API
LangSmith
Yes
Speechify
No
Open Source
LangSmith
Proprietary
Speechify
Proprietary
Integrations
LangSmith
Pagerduty
Speechify
—
Categories
LangSmith
Dev & Tech, information technology & services, Apps
Speechify
Content Creation, information technology & services, Text to speech
Popularity
LangSmith
Very High
Speechify
Very High
Description
LangSmith
LangSmith is a complete AI agent and LLM observability platform. It offers tracing and real-time monitoring to help developers debug agents, find fail...
Speechify
Speechify is a leading text-to-speech reader that converts any text into natural-sounding audio, enabling over 55 million users to listen to books, PD...
Features
LangSmith
Cost tracking
Online LLM-as-judge and code evals
Tool and agent trajectory monitoring
Webhook and Pagerduty alerts
Message threading for multi-turn chat interactions
Templates for error analysis
Speechify
Text-to-speech for PDFs, documents, and web pages
Cross-platform apps and browser extensions
AI Podcasts from any content
Voice Typing and dictation
Voice AI Assistant
Voice Cloning
Key differentiators
LangSmith
- Complete AI agent & LLM observability
- Real-time tracing, debugging & evals
- Cost, latency & trajectory monitoring
Speechify
- Leading AI text-to-speech
- Turns any reading into audiobooks
- AI Podcasts, Voice Typing & Assistant
Other comparisons
FAQ: LangSmith vs Speechify
LangSmith: AI Agent & LLM Observability Platform. Speechify: Reads anything aloud with natural voices.. Both tools take different approaches to address similar needs.
Both offer a free or freemium plan. LangSmith is freemium and Speechify is freemium.
The best choice between LangSmith and Speechify depends on your specific needs. Compare their features, pricing, and target audience on this page to find the tool that best fits your use case.
LangSmith is primarily designed for individuals, while Speechify is built for individuals.
LangSmith offers: Cost tracking, Online LLM-as-judge and code evals, Tool and agent trajectory monitoring, Webhook and Pagerduty alerts. Speechify offers: Text-to-speech for PDFs, documents, and web pages, Cross-platform apps and browser extensions, AI Podcasts from any content, Voice Typing and dictation.
Based on our data, LangSmith currently enjoys greater popularity. However, popularity isn't the only factor — compare features to find the right tool for your needs.