Claude Fast Mode Cost Calculator
Price the same Opus workload on Standard vs Fast mode. Opus 5.5 Standard $4/$20 vs Fast $8/$40; Opus 5 / 4.8 Fast $10/$50 (research preview). Optional cache-hit % and US data-residency 1.1× stack on top. Fast mode is not available with Batch. Estimates only; official Anthropic pricing prevails.
Math runs in your browser. Nothing is uploaded.
Standard monthly USD
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Fast mode cost
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Fast premium ($)
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Fast premium %
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Estimates only; official vendor pricing prevails (2026-10-30). Fast ≠ Batch. Opus 5.5 Fast $8/$40 vs Standard $4/$20; Opus 5/4.8 Fast $10/$50. Cache-hit multipliers and US 1.1× stack on Fast rates.Official pricing: Anthropic
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How it works
- How is Fast mode priced?
- Opus 5.5 Fast is $8/$40 per 1M vs Standard $4/$20 (2×). Opus 5 and Opus 4.8 Fast are $10/$50 (research preview). Premium = Fast − Standard.
- Can Fast stack with Batch?
- No. Fast mode is not available with the Batch API. It can stack with prompt caching and US data-residency (1.1×).
- How does caching affect Fast?
- Cache-hit multipliers apply on top of Fast rates (0.05× input for Opus 5.5; 0.1× for Opus 5 / 4.8). Enter cache-hit % to estimate.
- What is US data residency 1.1×?
- For Claude 4.6+, pinning inference_geo to "us" multiplies all token categories by 1.1. Toggle it on this page to include that premium.
- Are results billing-grade?
- No. Estimates only; official Anthropic Fast mode pricing prevails.