AI Models

Letta (MemGPT)

Stateful AI agents with long-term memory management

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★4.5ratingPricing · FreemiumHot
The FalcoScan Intel PanelLetta (MemGPT) · AI Models
Data updated 2 November 2026
Opportunity
Moderate
Band
Saturation
Open
Band
Wrapper risk
Low
Band
Momentum
Hot
Market trend
Rating
4.5
of 5 · FalcoScan rating

AI Models AI has a narrow moat on average, from the moat scores of its rated products. What protects AI Models AI tools, and the widest moats

The Brief

What Letta (MemGPT) does

Letta (formerly MemGPT) gives AI agents persistent memory — managing context windows intelligently so agents remember conversations across sessions and accumulate knowledge over time.

How Letta (MemGPT) compares with its closest alternatives

All 5 closest alternatives have a free plan, as Letta (MemGPT) does. All 5 offer an API, as Letta (MemGPT) does. Letta (MemGPT) offers a web app and a desktop app. Of the 3 alternatives with platforms on record, 2 offer a web app and 1 offers a desktop app. Letta (MemGPT) was founded in 2023; the alternatives were founded between 2019 and 2024, 2 of them earlier. Letta (MemGPT) is based in San Francisco, United States; 2 of the 3 alternatives with a known headquarters are in the United States too, and the others in Canada.

Market position · AI Models

How Letta (MemGPT) compares in AI Models

Letta (MemGPT) has moderate opportunity and sits in the bottom third of 455 live AI Models tools on FalcoScan. Across AI Models, the average opportunity score is 74.6 and the average saturation score 30.5. FalcoScan rates Letta (MemGPT)'s own market position as open. 200 of the 455 operating AI Models tools have hot momentum, and FalcoScan has recorded 13 shutdowns in the category.

Letta (MemGPT) compared with its closest alternatives
ProductOpportunitySaturationPricingPricing fromFree planAPIPlatformsMomentum
Letta (MemGPT)Founded 2023 · San Francisco, United StatesModerateOpenFreemium—YesYesWeb, DesktopHot
Mem0Founded 2024 · San Francisco, United StatesModerateOpenFreemium—YesYesWeb, APIHot
Semantic KernelFounded 2023 · Remote-firstModerateContestedFree—YesYesDesktopRising
Cohere Command AFounded 2019 · Toronto, CanadaHighOpenFreemium—YesYesWeb, APIHot
LangChain BuildsFounded 2022 · San Francisco, United StatesHighOpenFree—YesYesAPIHot
NexusFlowFounded 2024ModerateOpenFree—YesYesAPIRising

Exact opportunity and saturation scores for all 6 of these, and where each ranks in AI Models.

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What it ships with

Capabilities & who uses it

The capabilities Letta (MemGPT) exposes to builders and the verticals it currently serves.

AI Capabilities
Memory ManagementContext Management
Industry Verticals
Technology
Tagged

Letta (MemGPT) shows up when builders search for these

memorystatefulagentslong-termpersistent
Similar tools · AI Models

Alternatives to Letta (MemGPT)

Products still running that do the same job, from the ai models market and related ones, closest match first.

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Mem0

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Semantic Kernel

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Cohere Command A

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★ 4.4Opportunity High
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LangChain Builds

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NexusFlow

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Promptic

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Questions

Letta (MemGPT): common questions

Is Letta (MemGPT) free?

Letta (MemGPT) has a free tier, with paid plans.

What are the best alternatives to Letta (MemGPT)?

The closest alternatives to Letta (MemGPT) that are still running, matched on the AI capabilities, uses and audience they share, are Mem0, Semantic Kernel, Cohere Command A, LangChain Builds, and NexusFlow.

Is Letta (MemGPT) still running?

Yes. As of 2 November 2026, FalcoScan lists Letta (MemGPT) as operating at letta.com.

Where is Letta (MemGPT) based?

Letta (MemGPT) is headquartered in San Francisco, United States.

Does Letta (MemGPT) have an API?

Yes. Letta (MemGPT) offers an API.

Who is Letta (MemGPT) for?

Letta (MemGPT) is built for developers and ai builders.

How do I sign in to Letta (MemGPT)?

Sign in on Letta (MemGPT)'s own website, letta.com. FalcoScan reviews Letta (MemGPT) but does not run its accounts, so logins, passwords and billing are handled by Letta (MemGPT) directly.

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