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    Claude Opus 5.5 vs Grok 4.6

    Short answer

    Grok 4.6 is about 3x cheaper than Claude Opus 5.5 for a typical 3:1 input-to-output token mix ($3 vs $8 per 1M tokens). Claude Opus 5.5 scores higher on ARC-AGI-2 (93.3% vs 67.1%).

    Prices updated Oct 23, 2026 (APIpulse, CC BY 4.0) · Benchmarks: ARC Prize, Vals.ai · all models

    Claude Opus 5.5Grok 4.6cheaper
    ProviderAnthropicxAI
    Input / 1M tokens$4$2
    Output / 1M tokens$20$6
    Blended (3:1) / 1M$8$3
    Context window1M500K
    ARC-AGI-293.3% (High)67.1% (XHigh)
    SWE-bench Verified—95.6%

    API cost calculator

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

    Claude Opus 5.5$80 / month$960 / year
    Grok 4.6cheapest$32 / month$384 / year

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

    Frequently asked questions

    Which is cheaper, Claude Opus 5.5 or Grok 4.6?

    Grok 4.6 is about 3x cheaper than Claude Opus 5.5 for a typical 3:1 input-to-output token mix ($3 vs $8 per 1M tokens).

    How much do Claude Opus 5.5 and Grok 4.6 cost per month?

    For 10M input and 2M output tokens a month: Claude Opus 5.5 costs $80 and Grok 4.6 costs $32.

    More: Claude Opus 5.5 pricing · Grok 4.6 pricing · all API prices

    Benchmarks updated Oct 25, 2026.