HlidoAlternatives

Letta alternatives

Looking for an alternative to Letta? Here are the top Frameworks & Eval agents Hlido has independently tested — scored on the same framework, ranked by evidence.

Independently tested by Hlido. 8 alternatives ranked. Updated 2026-07-19.

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Letta

50/100 FADING Frameworks & Eval

Public-surface review of Letta.

Read the full Letta review

Top alternatives to Letta

#1

truera/trulens

50/100 FADING Frameworks & Eval

Public-surface review of truera/trulens.

#2

LangSmith

53/100 FADING Frameworks & Eval

Public-surface review of LangSmith

#3

@langchain/openai

57/100 FADING Frameworks & Eval

Public-surface review of langchain-openai.

#6

@langchain/anthropic

57/100 FADING Frameworks & Eval

Public-surface review of langchain-anthropic.

#7

@langchain/aws

57/100 FADING Frameworks & Eval

Public-surface review of langchain-aws.

How Hlido compares them

Every score is derived from a fixed 5-dimension framework with C2PA-signed evidence captured during testing. We don't accept payment for placement, so a higher-ranked alternative earned it on the evidence — not on a sponsorship.

Read our methodology · All reviews · All alternatives