Stateful agents that are like people, with memory, identity, and the ability to learn and adapt

High-performance Rust accelerators for LangGraph applications. Drop-in components that provide up to 700x speedups for checkpoint operations and 10-50x speedups for state management.

Agent emotional continuity with PAD state, trust, appraisal, and compact emotion logs.

ARC-AGI-2 solver: 95.7% public eval at $3.12/task — lowest cost above 95%. Full inference traces included.

The first open evaluation framework for AI continuity. 250 narrative tests, 1835 verification questions, 10 checkpoints. Benchmark for AI memory systems, stateful agents, and long-term context persistence. No LLM in the evaluation loop.

A cognitive runtime that gives LLM agents persistent state, identity, and learning across turns. Memory, beliefs, drives, self-evolution, skills, and affective state — engineered scaffolding outside the model.

Build your agent once. Carry it everywhere. Compiles portable agent packs for Codex, Claude Code, and Cursor.

Agent state infrastructure: state-trace Python working memory plus @razroo/parallel-mcp durable MCP orchestration.

Stateful AI agents platform (formerly MemGPT).

LangGraph is a powerful framework built on LangChain that enables the creation of stateful, multi-step, and agentic workflows using directed graphs. It simplifies complex LLM orchestration by allowing conditional branching, memory, and tool integrations in a visual and modular way.

Letta integration for the Ejentum Reasoning Harness. 8 Python functions (4 harnesses × dynamic + adaptive) registered via tools.upsert_from_function.

C# SDK for the Letta API -- stateful AI agents with persistent memory, tools, and multi-agent groups

Structured memory and snapshot history system for AI agents (OpenCode / Claude Code)

Platform for stateful agents: AI with advanced memory that can learn and self-improve over time.

Stateful Goal mode skill for Codex, Claude Code, and AI agents with STATE.md memory, gates, and stop rules.

Dev Partner is a Codex skill for long-running feature development in a local git repository connected to GitHub. It keeps feature work stateful, reviewable, and explicitly controlled by the human developer.

LangGraph stateful agent — directed graph with intent classification, tool routing, execution, and response synthesis nodes. FAISS semantic memory + streaming chat UI.

Stateful AI study coach on Cloudflare Agents with persistent plan memory, Workers AI inference, tool calling, streaming chat, and scheduled workflow execution.