#1 alternative
LangGraphGraph-based orchestration for stateful, controllable LLM agents.
Free planagent-frameworks
Similar workflow fit
Useful alternative option
Alternatives guide
Best Letta Alternatives in 2026
Looking for alternatives to Letta? Compare similar AI tools selected automatically by category, tags, pricing, popularity, and user engagement on Toolglade.
Compared against
Letta
agent-frameworks
Stateful AI agents with long-term memory (formerly MemGPT).
Quick comparison
Tool
Category
Pricing
Rating
Action
Semantic Kernel
Microsoft's enterprise SDK for orchestrating LLMs, plugins, and agents.
agent-frameworks
Free
—
AutoGen
Microsoft's multi-agent conversation framework (now in maintenance mode).
agent-frameworks
Free
—
Coze
ByteDance's no-code studio for building and publishing AI chatbots and agents
agent-frameworks
Free plan
—
Chatbase
Build AI support agents trained on your own data, no code required.
agent-frameworks
Free plan
—
CustomGPT.ai
No-code custom AI agents built from your business content, with anti-hallucination focus.
agent-frameworks
Paid
—
Civitai
Open model hub and image generator for Stable Diffusion, LoRAs and custom checkpoints
image
Free plan
—
Top Letta alternatives
Dynamic recommendations based on similar categories, tags, use cases, pricing, and popularity signals.
#2 alternative
Semantic KernelMicrosoft's enterprise SDK for orchestrating LLMs, plugins, and agents.
Freeagent-frameworks
Similar workflow fit
Useful alternative option
#3 alternative
AutoGenMicrosoft's multi-agent conversation framework (now in maintenance mode).
Freeagent-frameworks
Similar workflow fit
Useful alternative option
#4 alternative
CozeByteDance's no-code studio for building and publishing AI chatbots and agents
Free planagent-frameworks
Similar workflow fit
Useful alternative option
#5 alternative
ChatbaseBuild AI support agents trained on your own data, no code required.
Free planagent-frameworks
Similar workflow fit
Useful alternative option
#6 alternative
CustomGPT.aiNo-code custom AI agents built from your business content, with anti-hallucination focus.
Paidagent-frameworks
Similar workflow fit
Useful alternative option
#7 alternative
LlamaIndexData framework for LLM apps and knowledge agents
Free planai-agents
Similar workflow fit
Useful alternative option
#8 alternative
CivitaiOpen model hub and image generator for Stable Diffusion, LoRAs and custom checkpoints
Free planimage
Similar workflow fit
Useful alternative option
#9 alternative
OllamaRun open LLMs locally with a single command.
Free planai-infrastructure
Similar workflow fit
Useful alternative option
#10 alternative
PlandexOpen-source terminal AI coding agent built for large, multi-file projects
Free plancoding
Similar workflow fit
Useful alternative option
#11 alternative
Kilo CodeOpen-source, model-agnostic AI coding agent for VS Code and JetBrains
Free plancoding
Similar workflow fit
Useful alternative option
#12 alternative
OrkasOpen-source local-first AI workforce coordinated by a Commander through one chat
Free planai-agents
Similar workflow fit
Useful alternative option
Why look for Letta alternatives?
Teams and individuals compare alternatives when they need different pricing, stronger feature coverage, better integrations, or a workflow that better matches their use case.
- Pricing fit
- Feature coverage
- Team workflow
- Integration support
FAQ
What is the best Letta alternative?
Based on Toolglade's automatic matching, LangGraph is a strong alternative to Letta.
Are there free alternatives to Letta?
Some listed alternatives may offer a free plan or freemium tier. Check the pricing column and each tool's page for current details.
How are alternatives selected?
Toolglade ranks alternatives using category similarity, tags, use cases, pricing fit, views, votes, ratings, and engagement signals.