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Letta (formerly MemGPT) is an open-source framework for building stateful AI agents with long-term memory. It provides agents with the ability to remember context across sessions, manage their own memory, and maintain persistent relationships with users over time.
80%
任务成功率
10s
平均响应时间
6,000
Tokens/Task
详细评分
自主性
85/100
可靠性
78/100
易用性
74/100
成本效益
85/100
集成能力
72/100
支持
70/100
能力
CodeApiFileKnowledge
主要特点
优点
- Advanced memory management
- Cross-session persistence
- Self-editing memory
- Open-source
缺点
- Complex architecture
- Memory overhead
- Newer project
定价方案
Free
$0
- Core framework
- Basic memory
- Community support
Cloud
$25/mo
- Managed hosting
- Unlimited memory
- Priority support
适用场景
Long-Term Memory AgentsPersonalized AIPersistent Context
成本模拟器
根据使用量估算您的月度成本
105001000
基础订阅$0
Token费用（100个任务）$9.00
月度总计$9.00
Underlying Models
GPT-5.5$5/$30 per 1M tokens
~6,000 tokens/task avg
查看所有代理定价
→Underlying Models
GPT-5.5
OpenAI · $5/$30 per 1M tokens
claude-sonnet-4
Model pricing not available
测试日期2026-06
最后更新2026-06
自主级别Fully Autonomous
