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Anthropic Sonnet 5.5 outperforms Sonnet 5 in cost and speed

By PulseAugur Editorial · [1 sources] ·

A developer compared Anthropic's Sonnet 5.5 and Sonnet 5 models for their book.questions.solver job over a 90-day period. Sonnet 5.5 proved to be more cost-effective, costing $0.01798 per call compared to Sonnet 5's $0.02414. It was also faster, with a median response time of 4.2 seconds versus 5.2 seconds for Sonnet 5. Sonnet 5.5 also utilized the prompt cache more effectively, with 10.5% of input tokens coming from cache, unlike Sonnet 5 which had 0% cache utilization. AI

IMPACT Sonnet 5.5 offers a more economical and faster alternative for users of Anthropic's Sonnet models.

RANK_REASON Comparison of two adjacent model versions from the same provider for a specific use case.

Read on dev.to — Anthropic tag →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Anthropic Sonnet 5.5 outperforms Sonnet 5 in cost and speed

How we ranked this

Signal score
47 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Tool
Comparison of two adjacent model versions from the same provider for a specific use case.
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Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
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product, other
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High
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Breaking (< 6h)
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Full methodology in our editorial standards.

COVERAGE [1]

  1. dev.to — Anthropic tag TIER_1 Deutsch(DE) · Robert ·

    Sonnet 5.5 vs Sonnet 5: When To Reach For Which

    <p>If you are choosing between two adjacent Sonnet versions for the same job, the useful questions are what each costs per call, how fast each is, and how much of the prompt each gets from cache. We have figures for both from our own use.</p> <p>Over the last 90 days, two Anthrop…

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