Z.ai: GLM 5.3 (batch)

z-ai/glm-5.3:batch · Z.aiNot yet established

Declared family: Unknown
Evidence confidence: Unknown
Declared tokenizer tag: Other
Entered catalogue: 18 August 2026
Last tested: Not yet measured
Measurement: Awaiting measurement

This entry is a serving variant of Z.ai: GLM 5.3. A variant shares its base model's tokenizer by construction, so the measurement lives on the base record and this page inherits it.

Evidence stack

Signals of different kinds, weighed together

Signal	Result	Reference
Tokenizer signature	Not measured	–
API surface	No other entry shares this exact contract	api_f7abe28a
Context and output	1,048,576 context · 943,718 max output	declared
Reasoning contract	Mandatory · efforts max, high, low · default max	declared
Serving providers observed	None recorded yet	–

Declared record

What the catalogue claims about this model

GLM-5.3 is a large-scale reasoning model from Z.ai, built for complex software engineering and long-horizon agent tasks. It supports text input and output with a 1M-token context window, and improves...

Modalities: text->text
Declared tokenizer: Other
Prompt price: $0.70 / M tokens
Completion price: $2.20 / M tokens

Supported parameters

frequency_penaltyinclude_reasoninglogit_biaslogprobsmax_tokenspresence_penaltyreasoningreasoning_effortrepetition_penaltyresponse_formatstopstructured_outputstemperaturetool_choicetoolstop_ktop_logprobstop_p

defaults: {"temperature":1,"top_p":0.95}

Catalogue entry Weights on Hugging Face

History

Every observation, kept as taken

18 August 2026Enters the OpenRouter catalogue with no declared family.

Cite this page as the evidence record for Z.ai: GLM 5.3 (batch): the URL is stable, measurements are dated, and revisions append to the history above. Method: tokenizer fingerprinting, v1, 50 strings.