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Developer decisionEnterprise evaluation

LangGraph vs Letta

Enterprise evaluation of LangGraph and Letta across security, compliance, reliability, procurement evidence, adoption, and market movement.

Decision brief

Best overall

LangGraph

Best combined signal across API availability, docs, adoption, reviews, and ecosystem proof.

Open-source option

LangGraph

Start here when local control, inspectability, or self-hosting matters.

Decision notes

Adoption proof: No verified adoption proof yet

Reviews: No developer reviews yet

Repo stars: LangGraph

Check before choosing

Enterprise evidence matrix
LangGraph logo

LangGraph

AI Agents

Pricing
Open source
Open source
Yes
API
Available
Rating
No reviews

Sponsored perks may appear below, but comparison order, evidence, and decision guidance are not bought placements. Decisions weigh verified usage, public product evidence, projects, saves, comparisons, and buyer requirements. Buyer shortlists stay private unless contact is requested.

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  • Status
LangGraph has no developer reviews yet.LangGraph has no public adoption proof yet.Letta has no developer reviews yet.Letta has no public adoption proof yet.

Evidence links

LangGraph docsLangGraph repoLetta docsLetta repo

Missing evidence and weekly return

LangGraph: verified adoptionLangGraph: benchmark dataLetta: verified adoptionLetta: benchmark data

Save this comparison to watch rank movement, new alternatives, docs changes, examples, and benchmark updates.

GitHub
42,490 stars
Adoption
Public evidence pending
Benchmark
No benchmark data
Commercial model
Inferred

Open source profile signal; exact enterprise terms need buyer review.

Source
Reliability
Missing

No status page, uptime, or SLA evidence attached

Security/compliance
Missing

No security, trust, or compliance source attached

Integration fit
Source linked

API available with docs/profile signal

Source
Adoption proof
Missing

No public adoption proof attached

Letta logo

Letta

AI Agents

Pricing
Freemium
Open source
Yes
API
Available
Rating
No reviews
GitHub
24,985 stars
Adoption
Public evidence pending
Benchmark
No benchmark data
Commercial model
Inferred

Freemium profile signal; exact enterprise terms need buyer review.

Source
Reliability
Missing

No status page, uptime, or SLA evidence attached

Security/compliance
Missing

No security, trust, or compliance source attached

Integration fit
Source linked

API available with docs/profile signal

Source
Adoption proof
Missing

No public adoption proof attached

Feature
LangGraph logoLangGraph
Letta logoLetta
CategoryAI AgentsAI Agents
PricingOpen sourceFreemium
Open source
API available
RatingNo reviewsNo reviews
GitHub stars
42,490
24,985
AdoptionPublic evidence pendingPublic evidence pending
BenchmarkNo benchmark dataNo benchmark data
Commercial model
Inferred

Open source profile signal; exact enterprise terms need buyer review.

Source
Inferred

Freemium profile signal; exact enterprise terms need buyer review.

Source
Reliability
Missing

No status page, uptime, or SLA evidence attached

Missing

No status page, uptime, or SLA evidence attached

Security/compliance
Missing

No security, trust, or compliance source attached

Missing

No security, trust, or compliance source attached

Integration fit
Source linked

API available with docs/profile signal

Source
Source linked

API available with docs/profile signal

Source
Adoption proof
Missing

No public adoption proof attached

Missing

No public adoption proof attached