Claude Sonnet 3.6 (2022-10-22) vs Qwen: Qwen3.5 397B A17B

Compare Claude Sonnet 3.6 (2022-10-22) by Anthropic against Qwen: Qwen3.5 397B A17B by Qwen, context windows of 200K vs 262K, tested across 42 shared challenges. Updated February 2026.

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