SOFTWARELetta

Letta

The memory-first agent

Letta focuses on persistent agents that improve over time instead of stateless chat sessions. Its platform and Letta Code app use background memory systems to evolve prompts, context, and skills across ongoing work.

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newsSECONDARY2026-04-08

GLM-5.1 lands on Modal, Together AI, Letta Code, and Tembo

Providers and agent platforms added GLM-5.1 endpoints across Modal, Together AI, Letta Code, Tembo, and Tabbit, with free trials, no-key access, and 99.9% SLA options. Use the new hosting options to test the model for coding and long-horizon agent workloads without waiting on self-hosting.