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

    887 results in the directory

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    ModelsHeliconeOpen Source

    Google Gemini 3 Pro Preview

    Helicone model · gemini-pro

    FreemiumInspect tool
    ModelsNovita AIOpen source

    Skywork R1V4-Lite

    Novita AI model · skywork

    Free (OSS)Inspect tool
    ModelsHeliconeOpen Source

    xAI Grok 4.1 Fast Non-Reasoning

    Helicone model · grok

    FreemiumInspect tool
    ModelsHeliconeOpen Source

    xAI Grok 4.1 Fast Reasoning

    Helicone model · grok

    FreemiumInspect tool
    ModelsAzureFreemium

    GPT-5.1

    Azure model · gpt

    Pay-as-you-goInspect tool
    ModelsAzureFreemium

    GPT-5.1 Chat

    Azure model · gpt-codex

    Pay-as-you-goInspect tool
    ModelsAzureFreemium

    GPT-5.1 Codex

    Azure model · gpt-codex

    Pay-as-you-goInspect tool
    ModelsAzureFreemium

    GPT-5.1 Codex Mini

    Azure model · gpt-codex

    Pay-as-you-goInspect tool
    ModelsGitHub CopilotPaid

    GPT-5.1

    GitHub Copilot model · gpt

    FreemiumInspect tool
    ModelsOpenRouterFREEMIUM

    GPT-5.1

    OpenRouter model · gpt

    Usage-basedInspect tool
    ModelsOpenCodeOpen Source

    GPT-5.1

    OpenCode model · gpt

    Free (open source)Inspect tool
    ModelsOpenAIPROPRIETARY

    GPT-5.1

    OpenAI model · gpt

    Usage-basedInspect tool

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