1
AgentQLFreemium · Pay as you go
Query language pour extraire des données web pour agents.
Why as an alternative to Letta: free tier to test, paid at Pay as you go for regular use.
The top 5
The best alternatives to Letta
2
Anchor BrowserFreemium · Pay as you go
Browser cloud isolé pour agents IA, axé sécurité.
Why as an alternative to Letta: free tier to test, paid at Pay as you go for regular use.
3
AutoGPTFreemium · Gratuit (open source)
Pioneer of autonomous agents, now a platform.
Why as an alternative to Letta: free tier to test, paid at Gratuit (open source) for regular use.
4
BotpressFreemium · 89 $/month
Builder de chatbots IA avec LLM intégré, open source friendly.
Why as an alternative to Letta: free tier to test, paid at 89 $/mois for regular use.
5
Browser UseFreemium · Free
Framework open source pour agents navigateur, leader 2025.
Why as an alternative to Letta: free tier to test, paid at Gratuit for regular use.
Summary table
At-a-glance table
| Tool | Price | Model | Joute score |
|---|---|---|---|
| Letta (reference) | Pay as you go | Freemium | -- |
| AgentQL | Pay as you go | Freemium | -- |
| Anchor Browser | Pay as you go | Freemium | -- |
| AutoGPT | Gratuit (open source) | Freemium | -- |
| Botpress | 89 $/month | Freemium | -- |
| Browser Use | Free | Freemium | -- |
Also worth knowing
Other alternatives in the same category
34 additional AI Agents tools worth knowing. Less priority than the top 5, but useful depending on the case.
6
BrowserbaseAI AgentsHeadless browser cloud pour agents IA, infra production.—Score7
CassidyAI AgentsHub d'assistants IA d'entreprise sur tes outils internes.—Score8
CognosysAI AgentsWeb AI agent that runs research and tasks autonomously.—Score9
ConvergenceAI AgentsProxy, agent généraliste qui automatise sur ton ordinateur.—Score10
CosineAI AgentsGenie, agent ingénieur autonome pour résoudre tickets GitHub.—Score11
CrewAIAI AgentsOpen source framework for orchestrating AI agent teams.—Score12
DevinAI AgentsCognition's autonomous software engineer.—Score13
DustAI AgentsAI agent platform for teams, plugged into your tools.—Score14
GensparkAI AgentsSuper-agent combining search, agents, and 80+ tools.—Score15
HyperbrowserAI AgentsInfrastructure browser cloud pour agents et scraping IA.—Score16
ImbueAI AgentsLabo agents généralistes, focus raisonnement et code.—Score17
InkeepAI AgentsAssistant IA pour support développeur et documentation.—Score18
LangGraphAI AgentsStateful AI agent framework, by LangChain.—Score19
LindyAI AgentsBuild AI assistants that automate your recurring tasks.—Score20
LutraAI AgentsAgent automate intégré aux apps Google Workspace.—Score21
MagnitudeAI AgentsFramework open source pour agents navigateur fiables.—Score22
ManusAI AgentsAutonomous generalist AI agent that executes tasks end-to-end.—Score23
MastraAI AgentsAI agent framework in TypeScript.—Score24
MindStudioAI AgentsNo-code pour construire agents IA personnalisés en équipe.—Score25
Multi-onAI AgentsAgent that acts for you directly in the browser.—Score26
OpenAI OperatorAI AgentsAgent navigateur OpenAI, réservé aux abonnés Pro.—Score27
OttogridAI AgentsResearch agents that fill data tables.—Score28
PhidataAI AgentsFramework Python pour agents IA avec mémoire et tools.—Score29
Pydantic AIAI AgentsTyped AI agent framework, by the Pydantic team.—Score30
Reflection AIAI AgentsAgents IA pour ingénierie logicielle autonome.—Score31
Relevance AIAI AgentsPlateforme low-code pour agents IA et workflows.—Score32
Sema4AI AgentsPlateforme open source d'agents IA enterprise, ex-Robocorp.—Score33
SkyvernAI AgentsAgent that automates workflows directly in the browser.—Score34
Smyth OSAI AgentsBuilder visuel d'agents IA avec drag and drop.—Score35
StagehandAI AgentsSDK Browserbase pour agents navigateur en TypeScript.—Score36
Steel BrowserAI AgentsBrowser open source pour agents, alternative auto-hébergeable.—Score37
SuperAGIAI AgentsPlateforme open source pour développer et déployer agents.—Score38
VoiceflowAI AgentsPlateforme no-code pour agents conversationnels multi-canal.—Score39
WordwareAI AgentsPlateforme prompt-as-code pour construire flows IA versionés.—Score
Frequently asked
Everything to know before switching
What is the best alternative to Letta in 2026?
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AgentQL tops our ranking among the 39 alternatives identified in the AI Agents category. The verdict shifts based on your profile and budget: we detail the top 5 above.
Is there a free alternative to Letta?
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Yes, Mastra is a real free alternative, ai agent framework in typescript. Several other tools in the category offer a freemium tier.
Is Letta really the best in its category?
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Letta hasn't been fully tested by Joute yet. The ranking above is based on alternative scores -- use it as guidance, not a final verdict.
Why look for an alternative to Letta?
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Three common reasons: the price gets too high, the tool no longer covers a refined use case, or you want to de-risk your stack. The AI Agents category is well-stocked in 2026 to find better or cheaper.