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Z.ai: GLM 5.1

z-ai/glm-5.1

Tool useJSONReasoningStreaming

GLM-5.1 delivers a major leap in coding capability, with particularly significant gains in handling long-horizon tasks. Unlike previous models built around minute-level interactions, GLM-5.1 can work independently and continuously on...

Pricing

Input

$0.98 / 1M

Output

$3.08 / 1M

Specs

Context

202,752 tokens

Input

text

Output

text

Released: 2026-04

Supported parameters

frequency_penaltyinclude_reasoninglogit_biaslogprobsmax_tokensmin_pparallel_tool_callspresence_penaltyreasoningreasoning_effortrepetition_penaltyresponse_formatseedstopstructured_outputstemperaturetool_choicetoolstop_ktop_logprobstop_p

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