# AI/ML API vs Letta — Fit & Features

Canonical: https://trutool.co/compare/ai-ml-api-vs-letta
Author: Snehil (https://trutool.co/authors/snehil)

Compare AI/ML API and Letta by use case, features, limitations, and evaluation questions.

## Compare fit, features, and limitations

### AI/ML API
Access 1000+ AI models through a single API for text, image, video, audio, code, embeddings, and more. Compare pricing, latency, and capabilities—place with AIMLAPI.
Best fit: People and teams evaluating ai memory & retrieval for a specific workflow.
- Knowledge workflows
Before you choose: Test a representative task, inspect outputs, and confirm integrations, permissions, data handling, licensing, and current costs.
Pricing: https://aimlapi.com/app/billing/plans
- [Read AI/ML API profile](https://trutool.co/tools/ai-ml-api): Read AI/ML API profile

### Letta
Build agents that retain and manage state and memory across interactions.
Best fit: Developers building grounded assistants with persistent context and retrieval.
- Stateful agents
- Agent memory
- Agent APIs
Before you choose: Test retrieval quality, deletion behavior, access boundaries, and retention. Compare hosting and embedding costs for your data.
Pricing: https://www.letta.com
- [Read Letta profile](https://trutool.co/tools/letta): Read Letta profile