PayloopPayloop
CommunityVoicesToolsDiscoverLeaderboardReportsBlog
Save Up to 65% on AI
Powered by Payloop — LLM Cost Intelligence
Tools/Letta vs DSPy
Letta

Letta

framework
vs
DSPy

DSPy

framework

Letta vs DSPy — Comparison

Overview
What each tool does and who it's for

Letta

Making machines that learn. Create stateful agents that remember everything, learn continuously, and improve themselves over time.

Based on the limited social mentions available, users appear to have concerns about **Letta's performance at scale**, particularly citing **200-500ms latency per operation** due to routing all memory operations through an LLM. This latency issue is seen as a significant enough problem that developers are building alternative solutions specifically to avoid it. The multiple YouTube mentions suggest there's active interest and discussion around Letta in the AI agent community. However, without detailed reviews or pricing information, it's difficult to assess overall user satisfaction or cost concerns beyond the core performance complaint.

DSPy

The framework for programming—rather than prompting—language models.

I don't see any actual review content or social media mentions in your message - the sections appear to be empty except for a single Hacker News thread title. Based on just that title "If DSPy is so great, why isn't anyone using it?", it suggests there may be skepticism about DSPy's adoption despite its purported capabilities. To provide a meaningful summary of user sentiment, I would need the actual review content and social media discussions you'd like me to analyze.

Key Metrics
—
Avg Rating
—
0
Mentions (30d)
1
21,824
GitHub Stars
33,311
2,303
GitHub Forks
2,742
—
npm Downloads/wk
—
—
PyPI Downloads/mo
—
Community Sentiment
How developers feel about each tool based on mentions and reviews

Letta

0% positive100% neutral0% negative

DSPy

0% positive100% neutral0% negative
Pricing

Letta

usage-based + subscription + tieredFree tier

Pricing found: $20 / month, $100 / month, $200 / month, $20 / month, $0.10 / active

DSPy

tiered

Pricing found: $2

Use Cases
When to use each tool

Letta (1)

Persistent agents instead of stateless sessions
Features

Only in Letta (10)

Persistent agents instead of stateless sessionsAlways improving and learningOwn your memory and port it across modelsChat from any device, run on any environmentCompatible with your API keys and coding plansInstall the desktop appUse in the terminalBuild with the SDKGet started with Letta CodeLetta Code desktop app
Developer Ecosystem
47
GitHub Repos
53
754
GitHub Followers
2,504
20
npm Packages
7
—
HuggingFace Models
23
—
SO Reputation
—
Pain Points
Top complaints from reviews and social mentions

Letta

token cost (1)

DSPy

No data yet

Product Screenshots

Letta

Letta screenshot 1Letta screenshot 2Letta screenshot 3Letta screenshot 4

DSPy

DSPy screenshot 1
Company Intel
research
Industry
—
18
Employees
—
$10.0M
Funding
—
Seed
Stage
—
Supported Languages & Categories

Letta

Developer Tools

DSPy

AI/MLFinTechDevOpsDeveloper Tools
View Letta Profile View DSPy Profile