GStars
    letta-ai

    letta-ai/letta

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

    ai
    ai-agents
    llm
    llm-agent
    Apache-2.0
    25.3K stars
    2.7K forks
    25.3K GitHub watchers
    Updated Nov 3, 2026
    View on GitHub

    Build with Backblaze B2

    SDKs, agent skills, IDE extensions, and reference pipelines from Backblaze Labs. All open source.

    Explore Backblaze Labs

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    Where it stands

    Rank, growth pace and release cadence relative to everything GStars tracks.

    No releases in the last 90 days; the most recent was 173 days ago, with 139 contributors on GitHub.

    The biggest single-day gain in the last year, +257 stars on Dec 19, coincided with release 0.16.1.

    Use Cases & Benefits

    • Provides a platform for building stateful AI agents with advanced memory that learn and self-improve over time.
    • Enables creation of agents with editable persistent memory blocks and multi-agent shared memory for complex, evolving interactions.
    • Use for developing AI assistants that maintain personalized, evolving conversations with users using persistent memory.
    • Use for implementing multi-agent systems with shared memory blocks to coordinate tasks and share knowledge across agents.
    • Use for connecting AI agents to external files and data sources to enable informed responses based on uploaded documents.

    Should you depend on it?

    License terms, project hygiene and risks, from GitHub metadata and GStars' snapshots.

    License

    Apache 2.0

    Permissive: commercial use, modification and redistribution are allowed with attribution; includes an explicit patent grant from contributors.

    Community files

    • README: present
    • Contributing guide: present

    Watch-outs

    No watch-outs from GStars' checks.

    General guidance from repository metadata, not legal advice. How we score

    From the README

    Letta is the platform for building stateful agents: open AI with advanced memory that can learn and self-improve over time.

    Excerpt from the letta-ai/letta README on GitHub (Apache-2.0 license). © its authors.Read the full README on GitHub

    Daily snapshots

    Stars gained per day, and how forks and open issues moved, from GStars' daily snapshots

    Forks

    2.7K+84

    Open issues

    0-41

    Compared with peers in AI

    Fastest-growing repositories GStars tracks in this cohort for the week of Nov 8, by 7-day star growth

    View category →
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    letta-ai/letta25.3K—51173 days ago
    Category median115.8K+4.0K75—
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