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    1. Home
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    3. Scale AI
    Scale AI icon

    Scale AI

    LLM Evaluations

    Scale AI provides enterprise-grade data labeling, model evaluation, RLHF, and a GenAI Data Engine with API and SDKs to build, fine-tune, and deploy production AI systems.

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    At a Glance

    Pricing

    Paid
    Enterprise: Custom/contact

    Engagement

    Available On

    Linux
    Web
    API
    SDK

    Resources

    WebsiteDocsllms.txt

    Topics

    LLM EvaluationsHuman-in-the-Loop TrainingAgent Frameworks

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    Developer

    Scale AISan Francisco, CAEst. 2016$1.6B+ raised

    Updated Feb 2026

    About Scale AI

    Scale AI delivers data, evaluation, and deployment tools that support the full AI lifecycle for enterprises and government customers. The platform combines large-scale data labeling, model evaluation and RLHF pipelines, and an enterprise GenAI Data Engine to accelerate model development and safe deployment. Scale exposes a REST API and developer SDKs to integrate labeling, evaluation, and agentic workflows into existing ML pipelines.

    • Data labeling and annotation — Use Scale's managed labeling pipelines to upload assets and receive high-quality labeled data for vision, sensor fusion, audio, and text tasks.
    • Model evaluation & benchmarking — Run private, expert-led evaluations and leaderboards to measure model performance and regression across custom datasets.
    • Fine-tuning and RLHF — Apply fine-tuning and reinforcement learning from human feedback workflows to adapt foundation models to enterprise data.
    • Enterprise GenAI Data Engine — Ingest and manage enterprise data to power long-lived, auditable generative AI applications.
    • Scale API & SDKs — Integrate via REST API and provided client libraries to create sandboxed tests, request tasks, and consume results programmatically.

    Getting started: create an account, use the Scale API or SDKs to submit tasks or datasets, and work with Scale's customer success team for onboarding and enterprise configuration.

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    Pricing

    Enterprise

    Popular

    Custom enterprise engagements and pricing; contact sales for onboarding, quotas, and SLAs.

    Custom
    contact sales
    • Managed data labeling and annotation pipelines
    • Private model evaluation and leaderboards
    • Fine-tuning and RLHF services
    • Enterprise GenAI Data Engine and integrations
    • API access and developer SDK support
    View official pricing

    Capabilities

    Key Features

    • Data labeling and annotation for images, video, LIDAR, audio, and text
    • Model evaluation, leaderboards, and private expert assessments
    • Fine-tuning and RLHF pipelines for foundation models
    • Enterprise GenAI Data Engine for long-term data management
    • REST API and developer SDKs for integration and sandbox testing

    Integrations

    Google
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    Scale API
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    API Available
    View Docs

    Demo Video

    Scale AI Demo Video
    Watch on YouTube

    Reviews & Ratings

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    Developer

    Scale AI Team

    Scale AI builds enterprise-grade data and evaluation platforms that power model development, fine-tuning, and deployment. The team combines expertise in data operations, ML systems, and safety to deliver managed labeling, evaluation, and RLHF workflows. Scale works with enterprises and government customers to operationalize reliable, auditable AI pipelines.

    Founded 2016
    San Francisco, CA
    $1.6B+ raised
    1,200 employees

    Used by

    OpenAI (partnership winding down…
    Google (largest customer in 2024,…
    Microsoft
    Meta Platforms
    +13 more
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