GLM 5.3 FlashX Legal (OpenRouter route) API pricing

    Z.ai model

    Short answer

    GLM 5.3 FlashX Legal (OpenRouter route) by Z.ai costs $0.37 per 1M input tokens and $1.25 per 1M output tokens, with a 1M token context window.

    Prices updated Nov 13, 2026 (APIpulse, CC BY 4.0) · Benchmarks: ARC Prize, Vals.ai · all models

    Input$0.37 / 1M
    Output$1.25 / 1M
    Context1M
    Blended (3:1)$0.59 / 1M

    API cost calculator

    Enter your monthly usage in millions of tokens (1M tokens ≈ 750,000 words).

    GLM 5.3 FlashX Legal (OpenRouter route)$6.20 / month$74.40 / year

    Standard rates; batch processing and prompt caching can lower the bill.

    Benchmarks

    ARC-AGI-2 (reasoning)—
    SWE-bench Verified (coding)—

    Other Z.ai models

    ModelInput / 1MOutput / 1M
    GLM-5.3 FlashX$0.37$1.25
    GLM-5.3 Flash$0.15$0.50

    Frequently asked questions

    How much does the GLM 5.3 FlashX Legal (OpenRouter route) API cost?

    GLM 5.3 FlashX Legal (OpenRouter route) costs $0.37 per 1M input tokens and $1.25 per 1M output tokens. A workload of 10M input and 2M output tokens a month costs $6.20.

    What is the context window of GLM 5.3 FlashX Legal (OpenRouter route)?

    GLM 5.3 FlashX Legal (OpenRouter route) supports a 1M token context window.