Dust vs Letta

Comprehensive side-by-side comparison — features, pricing, performance, and more.

Data last refreshed August 2026

Dust

Multiplayer AI for human-agent collaboration

Freemium

84% verification coverage

Letta

Machines that learn — self-improving AI agents (from the creators of MemGPT)

Open Source

78% verification coverage

Trust & Reliability

Dust

Users:1K-10K

Customers (per vendor):Alan, Doctolib, PayFit +7

GDPR

SOC 2

HIPAA

Letta

Uptime:99.96% (365-day)Status page

Customers (per vendor):Bilt, 11x, Kognitos +1

GDPR

Overall Winner: Dust

7.2/10 vs Letta at 5.8/10

Leads in:

Integration

Performance

Compliance & Data Protection

Scores are AI-estimated from publicly available data — not an independent test or a verified user rating. How we rank →

AI Comparison Summary

Dust

7.2

avg score

Letta

5.8

avg score

Dust leads overall — particularly in Ease of Use and Integration and 2 more.

Letta has an edge in Support.

Based on 6 dimensions

Scores are AI-estimated from publicly available data — not an independent test or a verified user rating. How we rank →

Overall Winner

Dust

7.2 / 10

Dust

Best For

Teams creating and sharing AI agents across departments

Companies needing to connect AI agents to diverse internal knowledge bases and SaaS tools

Organizations requiring robust security, governance, and audit capabilities for AI adoption

Teams looking to automate complex, multi-step workflows with human oversight

Letta

Best For

Developers building AI agents for automated workloads

Teams creating custom agents with shared resources and permissions

Individuals using stateful agents for personal use

Enterprises requiring high-volume agent deployments with custom pricing

* Verdict is based on our algorithmic scoring of publicly available data. Learn about our methodology

Dust is best for

🤖Automation & Agents6.2💬Chat & Conversation6.0🔍Research5.6

Letta is best for

✍️Writing & Content8.0💬Chat & Conversation8.0🤖Automation & Agents7.1

Filter by your use case:

Limitations

Dust

Cons

Free plan has limited credits (500 lifetime)

Letta

Cons

Free plan is limited to 3 stateful agents
Personal Plans require OAuth authentication
Developer Plans use API key authentication
Tool execution on the API Plan is usage-based
Letta Auto usage is quota-limited on Pro plans
Data collection for hosted services may be used for model training

Weighted Score — Adjust What Matters to You

Pick a profile or drag sliders — scores and radar update instantly on the right.

Quick profiles:

Ease of Use5

Customization5

Support5

Integration5

Compliance & Data Protection5

Performance5

Planning Quality5

Dimension Comparison

Dust

7.2

/ 10

Clear winner

Letta

5.8

/ 10

Dimension Breakdown

Ease of Use

How intuitive is onboarding, UI navigation, and day-to-day usage for the target audience?

Dust

3.0▲ +2.0

Letta

1.0

Customization

Calculated

How much can users tailor workflows, settings, prompts, or outputs to their needs?

Dust

9.0

Letta

9.0

Support

How strong is the documentation, customer support, community, and learning resources?

Dust

7.0

Letta

10.0▲ +3.0

Integration

Calculated

How well does it connect with other tools, APIs, and workflows?

Dust

9.0▲ +2.0

Letta

7.0

Compliance & Data Protection

Calculated

Compliance certifications and data-protection posture, counted from ten verified signals: SOC 2 Type II, GDPR compliance, HIPAA, WCAG AA/AAA, PII redaction, licensed-only training, a published sub-processor list, a downloadable DPA, not training on user data, and a documented deletion path

Dust

7.0▲ +4.0

Letta

3.0

Performance

Calculated

Latency + throughput speed

Dust

8.0▲ +3.0

Letta

5.0

Planning Quality

Calculated

Multi-step planning depth + replanning capability

Dust

—

Letta

—

Calculated = derived from structured signals (integration count, API/open-source config, compliance certs, response-time). AI = LLM-assessed from public website content. Methodology

Task Performance

Dust

Task

Letta

7.0

Role Definition

8.0

6.0

Task Decomposition

8.0

7.0

Agent Coordination

7.0

6.0

Inter Agent Communication

6.0

8.0

Workflow Orchestration

7.0

Tool Use Delegation

7.0

6.0

State Management

9.0

5.0

Error Recovery

5.0

7.0

Observability

5.0

6.0

Scalability Throughput

8.0

6.0

Task Delegation

8.0

5.0

Parallel Execution

7.0

* Task scores (1–10) are algorithmically generated from publicly available data.

Data is sourced from public information and vendor websites. It may not always be up-to-date — verify pricing and features directly with the vendor before purchasing.Report inaccuracy

Frequently Asked Questions

What are the main differences between Dust and Letta?

Dust — "Multiplayer AI for human-agent collaboration". Letta — "Machines that learn — self-improving AI agents (from the creators of MemGPT)". The Features section on this page compares them side by side.

Who is Dust best for compared with Letta?

Dust is best for Teams creating and sharing AI agents across departments; and for Companies needing to connect AI agents to diverse internal knowledge bases and SaaS tools. Letta is best for Developers building AI agents for automated workloads; and for Teams creating custom agents with shared resources and permissions.

How does the pricing of Dust compare with Letta?

Dust is freemium, includes a free plan, offers a free trial. Letta is open source, includes a free plan, paid plans start at $20/month. Always verify current pricing with the vendor.

Does Dust or Letta have a free plan?

Dust has a free plan and offers a free trial. Letta is open source. Always verify current pricing with the vendor.

Do Dust and Letta offer an API?

Dust offers a public API. Letta offers a public API.

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