Zhipu: glm-4.5-air:free

glm-4.5-air:free
131.1K context96K outReasoningToolsCache
Released Jul 25, 2025Knowledge cutoff 2024Updated Jul 25, 2025

GLM-4.5 is our latest flagship foundation model, purpose-built for agent-based applications. It leverages a Mixture-of-Experts (MoE) architecture and supports a context length of up to 128k tokens. GLM-4.5 delivers significantly enhanced capabilities in reasoning, code generation, and agent alignment. It supports a hybrid inference mode with two options, a "thinking mode" designed for complex reasoning and tool use, and a "non-thinking mode" optimized for instant responses. Users can control the reasoning behaviour with the reasoning enabled boolean. Learn more in our docs

Mode chatTokenizer OtherQuantization fp8zai-org/GLM-4.5-Air

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Pricing

Input price
$0.00/ 1M tokens
Output price
$0.00/ 1M tokens
Context window 131.1K tokensCompatible endpoints openaiVendor Zhipu

Performance

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Usage & Ranking

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Supported parameters

All providers = every upstream serving this model supports it. Some providers = depends on which upstream handles the request. Default = the value sent when you leave the parameter unset.

ParameterProvidersDefault
frequency_penaltySome providersNot sent by default
include_reasoningAll providers-
max_tokensAll providers-
presence_penaltySome providers-
reasoningAll providers-
repetition_penaltySome providers-
seedSome providers-
stopSome providers-
temperatureAll providers0.75
tool_choiceAll providers-
toolsAll providers-
top_kAll providers-
top_pAll providersNot sent by default

Frequently asked questions

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