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Face-off

Claude Sonnet 5.5 vs GLM-5.2

Claude Sonnet 5.5 versus GLM-5.2 on list price and published Arena rating. Claude Sonnet 5.5 Arena 1473 · GLM-5.2 Arena 1470 Blended list price Claude Sonnet 5.5 $8.00 and GLM-5.2 $3.65 per 1M tokens.

Claude Sonnet 5.5AnthropicArena 1473$8.00 / 1M
Claude Sonnet 5.5 leads by 2 Arena pointsClaude Sonnet 5.5 costs 2.2x more
GLM-5.2Zhipu · AlibabaArena 1470$3.65 / 1M

Claude Sonnet 5.5

Anthropic

Input / 1M$2.00Output / 1M$10.00Arena1473Value1241,000 coding edits$12.00

Open model

GLM-5.2

Alibaba

Input / 1M$1.40Output / 1M$4.40Arena1470Value1361,000 coding edits$6.32

Open model

Claude Sonnet 5.5 leads by 2 Arena points. Claude Sonnet 5.5 costs 2.2x more, moving from Claude Sonnet 5.5 to GLM-5.2. The 1,000-edit cost uses a planning assumption of 2,000 input and 800 output tokens, not a measured trace. Share this face-off. The link renders an Open Graph image of the two models.