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    Side-by-Side Comparison

    GLM-4.5 vs gpt-5.3-chat-latest

    A detailed comparison of pricing, specifications, and benchmark performance.

    Z AIGLM-4.5Z AI
    vs
    OpenAIgpt-5.3-chat-latestOpenAI
    Metric
    GLM-4.5
    gpt-5.3-chat-latest
    Provider
    Provider
    Z AI
    OpenAI
    License
    Proprietary
    Proprietary
    Release Date
    2025-07-25
    2026-03-03
    Pricing (per 1M tokens)
    Input Price-66%
    $0.60
    $1.75
    Output Price-84%
    $2.20
    $14.00
    Blended (1M + 1M)
    $2.80
    $15.75
    Model Details
    Context Window
    128K
    128K
    Max Output Tokens
    65.5K
    16.4K
    Knowledge Cutoff
    2025-01-29
    August 2025
    Throughput
    52 tok/s
    N/A
    Benchmarks
    MMLU
    84.6%
    N/A
    MATH
    98.2%
    N/A

    Verdict

    The Bottom Line

    Both models are closely matched on benchmarks. GLM-4.5 has the pricing advantage, making it the better value unless gpt-5.3-chat-latest's specific capabilities are critical to your workflow.

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