Fireworks AI
Fastest Inference for Generative AI
VS
LangSmith
AI Agent & LLM Observability Platform
Detailed comparison
Criteria
Fireworks AI
LangSmith
Pricing
Freemium
Freemium
Plans & pricing
Enterprise: Custom, Text & Vision Base Model (<4B params): Custom, Image Generation (non-Flux models): Custom, OpenAI GPT-OSS-20B: Custom, Flux.1 Kontext Pro: Custom
Developer: Free, Team: $39/mo, Enterprise: Custom
Free trial
No
No
Audience
b2b
b2b
Platforms
Web, Api
Web
API
Yes
Yes
Open Source
Proprietary
Proprietary
Integrations
—
Pagerduty
Categories
Operations, information technology & services, Product development
Dev & Tech, information technology & services, Apps
Popularity
Very High
Very High
Description
Fireworks AI offers the fastest inference platform for state-of-the-art, open-source LLMs and image models. It enables developers and enterprises to u...
LangSmith is a complete AI agent and LLM observability platform. It offers tracing and real-time monitoring to help developers debug agents, find fail...
Pricing
Fireworks AI
Freemium
LangSmith
Freemium
Plans & pricing
Fireworks AI
Enterprise: Custom, Text & Vision Base Model (<4B params): Custom, Image Generation (non-Flux models): Custom, OpenAI GPT-OSS-20B: Custom, Flux.1 Kontext Pro: Custom
LangSmith
Developer: Free, Team: $39/mo, Enterprise: Custom
Free trial
Fireworks AI
No
LangSmith
No
Audience
Fireworks AI
b2b
LangSmith
b2b
Platforms
Fireworks AI
Web, Api
LangSmith
Web
API
Fireworks AI
Yes
LangSmith
Yes
Open Source
Fireworks AI
Proprietary
LangSmith
Proprietary
Integrations
Fireworks AI
—
LangSmith
Pagerduty
Categories
Fireworks AI
Operations, information technology & services, Product development
LangSmith
Dev & Tech, information technology & services, Apps
Popularity
Fireworks AI
Very High
LangSmith
Very High
Description
Fireworks AI
Fireworks AI offers the fastest inference platform for state-of-the-art, open-source LLMs and image models. It enables developers and enterprises to u...
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...
Features
Fireworks AI
High-speed inference for generative AI
Support for state-of-the-art open-source LLMs and image models
Fine-tuning and deployment of custom models
Scalable platform for building generative AI capabilities
Self-serve access for developers with free credits
Enterprise solutions available
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
Key differentiators
Fireworks AI
- Blazing-fast AI inference
- Open-source LLM & image model support
- Custom model fine-tuning & deployment
LangSmith
- Complete AI agent & LLM observability
- Real-time tracing, debugging & evals
- Cost, latency & trajectory monitoring
Other comparisons
FAQ: Fireworks AI vs LangSmith
Fireworks AI: Fastest Inference for Generative AI. LangSmith: AI Agent & LLM Observability Platform. Both tools take different approaches to address similar needs.
Both offer a free or freemium plan. Fireworks AI is freemium and LangSmith is freemium.
The best choice between Fireworks AI and LangSmith 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.
Both are primarily designed for individuals. The choice depends on which specific features you need.
Fireworks AI offers: High-speed inference for generative AI, Support for state-of-the-art open-source LLMs and image models, Fine-tuning and deployment of custom models, Scalable platform for building generative AI capabilities. LangSmith offers: Cost tracking, Online LLM-as-judge and code evals, Tool and agent trajectory monitoring, Webhook and Pagerduty alerts.
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.