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    Content checked on November 5, 2026. Prices in USD unless stated otherwise. Taxes, annual billing and additional usage may change the total.

    Official sources:developers.openai.com ↗developers.openai.com (2) ↗

    Editorial ratings from 1 to 10 for SaaS development, not hands-on tests: correctness, speed and effective cost were not measured. Performance means workflow breadth and multi-file control; AI precision estimates verifiability, not a success rate. Value considers allowances, APIs, hosting and migration, not observed bills. Weights: performance 20%, AI precision 40%, ease of use 20%, value 20%. Ratings reassessed on November 5, 2026.

    OpenAI Codex logo
    OpenAI Codex
    Local

    OpenAI agent for editing, running and reviewing code locally or in the cloud.

    8.6/10
    Visit OpenAI Codex

    Codex works on project files, runs tools and supports review and automation. It offers a CLI, IDE extension and cloud sessions, with availability varying by plan and sign-in method. API-key authentication has separate pricing and features from ChatGPT subscriptions; this is not the older API model with the same name.

    Editorial assessment

    Repository workflows, review and local or cloud checks support high estimated performance and precision. Multiple interfaces improve access; allowances and the subscription/API distinction prevent a top value rating.

    Ratings assigned on November 5, 2026.

    Workflow & Control
    9/10
    AI Precision
    9/10
    Ease of Use
    8/10
    Price/Quality
    8/10
    Pros
    • CLI and IDE integration for existing repositories
    • Cloud sessions and code review on eligible plans
    • Permission controls and repeatable task automation
    Cons
    • Allowances depend on model, context and local or cloud work
    • API-key access does not include subscription cloud features
    Pricing
    PlanPriceFeatures
    Free / GoUS$0 / US$8 per monthLimited lightweight desktop tasks, subject to rollout; not equivalent to Plus access
    PlusUS$20/monthWeb, CLI and IDE extension; shared usage allowances and additional credits available
    ProFrom US$100/monthUS$100, US$200 or US$500 monthly options; capacity and features differ
    APIUsage-basedCLI, SDK and IDE at API rates; cloud sessions and cloud integrations are not included
    Technical Features

    LLM Models

    Limited

    OpenAI models available to the plan or API key. Model availability and allowances change over time.

    Deployment

    Complex

    Uses repository tools or external services; a cloud development session is not production hosting.

    Integration Level

    High

    Git, terminal, IDE, SDK and cloud integrations on eligible plans.

    Extra Features

    Built-in Hosting
    Custom Agents
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