Letta vs Agenta.ai Comparison in 2025

Letta

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Letta is an open source framework for building stateful LLM applications. You can use Letta to build stateful agents with advanced reasoning capabilities and transparent long-term memory. The Letta framework is white box and model-agnostic.

Agenta.ai

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Agenta is an open-source Platform to build LLM Application. It includes tools for prompt engineering, evaluation, deployment, and monitoring.

Letta

Launched	1997-10
Pricing Model	Free
Starting Price
Tech used	Plausible Analytics,Webflow,Amazon AWS CloudFront,cdnjs,Cloudflare CDN,JSDelivr,unpkg,jQuery,Gzip,HTTP/3,OpenGraph,HSTS
Tag	Agent Development Frameworks

Agenta.ai

Launched	2023-3
Pricing Model	Free Trial
Starting Price
Tech used	Google Analytics,Google Tag Manager,Framer,Gzip,HTTP/3,OpenGraph,HSTS
Tag	Prompt Management

Letta Rank/Visit

Global Rank	357512
Country	United States
Month Visit	84977

Top 5 Countries

40.88%

10.61%

6.21%

5.81%

4.03%

United States India Canada Indonesia Vietnam

Traffic Sources

3.97%

0.72%

0.07%

8.67%

32.47%

54.06%

social paidReferrals mail referrals search direct

Agenta.ai Rank/Visit

Global Rank	1041347
Country	United States
Month Visit	22554

Top 5 Countries

21.71%

15.64%

13.25%

9.85%

7.31%

United States India Nigeria Vietnam Germany

Traffic Sources

5.01%

1.01%

0.14%

9.03%

37.51%

47.19%

social paidReferrals mail referrals search direct

Estimated traffic data from Similarweb

What are some alternatives?

When comparing Letta and Agenta.ai, you can also consider the following products

TaskingAI - TaskingAI brings Firebase's simplicity to AI-native app development. Start your project by selecting an LLM model, build a responsive assistant supported by stateful APIs, and enhance its capabilities with managed memory, tool integrations, and augmented generation system.

LazyLLM - LazyLLM: Low-code for multi-agent LLM apps. Build, iterate & deploy complex AI solutions fast, from prototype to production. Focus on algorithms, not engineering.

liteLLM - Call all LLM APIs using the OpenAI format. Use Bedrock, Azure, OpenAI, Cohere, Anthropic, Ollama, Sagemaker, HuggingFace, Replicate (100+ LLMs)

Agent Cloud - Agent Cloud is an open source platform enabling companies to build and deploy private LLM chat apps (like chat GPT), that can enable teams to securely talk to their data.

Llongterm - Llongterm: The plug-and-play memory layer for AI agents. Eliminate context loss & build intelligent, persistent AI that never asks users to repeat themselves.