Lemma

Lemma is an AI Agents & Automation tool that provides a reliability platform for AI agents. It helps catch regressions, spot failures, and improve agents before user complaints.

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At a glance

Pricing

Likely Not Free

Free tier

API

Yes

Skill level

Technical

About

What is Lemma?

Lemma is a reliability platform specifically designed for AI agents, enabling continuous learning and improvement. It helps developers and machine learning engineers identify and resolve issues in AI agents by turning production usage into automated improvements. Key features include automated online evaluations combined with real user signals to measure agent performance, incident management with automatic root cause analysis, proposed fixes, and linked traces. The platform also offers semantic search to query traces in natural language and cluster discovery to identify emerging failure patterns without manual labeling. Lemma integrates with existing AI frameworks and provides SDKs for TypeScript and Python, ensuring seamless integration into development workflows.

Best used for

Ideal for developers and data scientists who need to ensure the reliability of their AI agents, diagnose failures, and continuously improve performance. Especially valuable for teams building complex AI agents that require robust monitoring, automated evaluation, and proactive issue resolution to prevent user frustration.

Common actions

monitor AI agent performance

debug AI agent failures

improve AI agent reliability

evaluate AI agent behavior

analyze AI agent traces

Capabilities

Key features

Automated online evaluations
Root cause analysis
Proposed fixes
Semantic search
Cluster discovery
OpenTelemetry-native tracing
SDK for TypeScript & Python

Target Audience

developerdata scientistproduct managerstartup founder

Integrations

vercel-ai-sdkopenai-agentslangfusearize-phoenixazure-monitorlanggraphclaude-sdk

Pricing & Plans

Likely Not Free

Not publicly disclosed. Check uselemma.ai for current pricing.

FAQs

What kind of AI agents does Lemma support?

Lemma is designed to support various AI agents, including those built with frameworks like Vercel AI SDK, OpenAI Agents, and LangGraph. It provides native support and SDKs for both TypeScript and Python, making it adaptable to different agent architectures.

How does Lemma help in identifying the root cause of agent failures?

Lemma automatically diagnoses regressions by tracing incidents back to the exact spans, tool calls, and model outputs that triggered the failure. It then proposes fixes, such as prompt changes or guardrail updates, and can even open a pull request for quick resolution.

Can Lemma integrate with my existing observability stack?

Yes, Lemma is built on OpenTelemetry-native standards, allowing it to work alongside other observability tools like Datadog, Langfuse, and Arize Phoenix. This ensures seamless integration into your current monitoring and tracing infrastructure.

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