Question 1

Is Portkey better than Letta?

Accepted Answer

It depends on your use case. Portkey is known for AI gateway for reliable and fast LLM applications, while Letta Build stateful AI agents with long-term memory. See our full comparison above for a detailed breakdown.

Question 2

Is Portkey free?

Accepted Answer

Portkey pricing: Free + Pro plans.

Question 3

Is Letta free?

Accepted Answer

Letta pricing: Free (open-source) + Cloud.

Question 4

What are the main differences between Portkey and Letta?

Accepted Answer

Portkey and Letta differ in features, pricing, and platform support. Portkey: AI gateway for reliable and fast LLM applications. Letta: Build stateful AI agents with long-term memory. See the full side-by-side comparison above for details.

Feature	Portkey	Letta
Category	LLM APIs & Inference	AI Agent Frameworks
Pricing	Free + Pro plans	Free (open-source) + Cloud
GitHub Stars	6k	✓ More stars 13k
Platforms	Web, Docker	Linux, macOS, Docker
Key Features	✓ AI gateway ✓ Fallbacks ✓ Load balancing ✓ Caching ✓ Observability	✓ Long-term memory ✓ Stateful agents ✓ Tool use ✓ Multi-model ✓ Self-editing memory
Pros	+ Automatic fallbacks + Load balancing + Request caching + Observability built-in + Open-source gateway	+ Solves long-term memory problem + Self-editing memory + Stateful agents + Multi-model support + Active research backing
Cons	− Added infrastructure layer − Learning curve − Some features need Pro − Latency overhead	− Complex memory management − Performance overhead − Rebranding confusion − Still experimental
Tags	gatewayreliabilityobservabilityapi	memorystatefulagentsopen-source

PortkeyvsLetta

Portkey

Letta

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