AI Tools Directory

    Discover the tools behind real AI build, eval, and deployment workflows.

    Browse by role in the stack, not just by vendor. Compare fit here, then open a tool detail page when it earns deeper inspection.

    Open My AI StackBrowse Agent Capabilities

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    Narrow the directory by what the tool does in the workflow.

    All Tools468Models887Environment6Action Space411Observation19Reward / Eval10Policy Serving36Training Infra5Safety / Guardrails7Orchestration16

    Browse tools

    411 results in the directory

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    INFERENCELepton AICOMMERCIAL

    Lepton AI

    3 related challengesInspect tool
    Agent Systems · Memory ManagementLettaFreemium

    Letta

    Stateful LLM framework (formerly MemGPT)

    1 related challengeInspect tool
    Agent FrameworkLetta AIFreemium

    Letta AI

    Persistent memory for AI agents

    1 related challengeInspect tool
    AI Workflow Automation · LLM Benchmarking & Model RoutingLibrettoFreemium

    Libretto

    LLM testing platform

    10 related challengesInspect tool
    AI Engineering Tooling · Developer ToolsLightning AIFreemium

    Lightning AI

    AI training & deployment platform

    Freemium / SubscriptionInspect tool
    AI Engineering Tooling · Developer ToolsLightski AIFreemium

    Lightski

    AI auto-documentation generator

    Beta / ContactInspect tool
    AI Engineering Tooling · Developer ToolsLIMEOpen source

    LIME (Explainability)

    Explainability

    Free (OSS)Inspect tool
    AI Workflow Automation · Low-Code PlatformsLindyFreemium

    Lindy

    AI assistant builder

    4 related challengesInspect tool
    Models · Large Language ModelsLingo DevPaid

    Lingo

    LLM observability & evaluation

    6 related challengesInspect tool
    AI Engineering Tooling · AI Web Search APIs & ScrapersLinkupFreemium

    Linkup

    Web search for AI

    UnknownInspect tool
    Assistants & Interfaces · VoiceLiveKitFreemium

    LiveKit

    Real-time voice and video infrastructure

    17 related challengesInspect tool
    Models · Large Language ModelsMetaOpen source

    Llama 3.1 405B

    LLM

    3 related challengesInspect tool

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