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Specifications
Parameters
—72B
Context window
1M32k
API pricing
Input price
$2.00—
Output price
$10.00—
Cached input price
$0.20—

These models have no shared benchmark scores.

Overview
CompanyAnthropicQwen
Release dateSep 28 2026Feb 4 2024
AccessClosedOpen Weight
Model detailsView modelView model

Frequently asked questions

Claude Sonnet 5.5 and Qwen1.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Only Claude Sonnet 5.5 has a verified first-party API price: $2.00 per million input tokens and $10.00 per million output tokens. No pay-as-you-go API rate is tracked for Qwen1.5. Qwen1.5 shipped 967 days before Claude Sonnet 5.5, so benchmark comparisons should account for the intervening progress.

Context windows are 1M (Claude Sonnet 5.5) vs 32k (Qwen1.5). Claude Sonnet 5.5 is closed, while Qwen1.5 is open weight.

Direct benchmark comparisons are unavailable — Claude Sonnet 5.5 and Qwen1.5 don't publish scores on any of the same benchmarks.