Z.ai: GLM 5.2 (free)

z-ai/glm-5.2:free · Z.aiTokenizer lineage measured

Tokenizer group (measured): Z.ai
Evidence confidence: Moderate
Declared tokenizer tag: Other
Entered catalogue: 16 June 2026
Last tested: Not yet measured
Measurement: Variant: inherits its base model’s measurement

Evidence

✓ inherited from z-ai/glm-5.2: a serving variant shares its base model's tokenizer

This entry is a serving variant of Z.ai: GLM 5.2. A variant shares its base model's tokenizer by construction, so the measurement lives on the base record and this page inherits it.

Identity statement

Z.ai: GLM 5.2 (free) is Z.ai's model, and its measured tokenizer sits in Z.ai's own signature group alongside its sibling models. No other maker's measured model shares it so far.

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_b5d6d33d
Context and output	256,000 context · 256,000 max output	declared
Reasoning contract	Optional · efforts xhigh, high · default high	declared
Serving providers observed	None recorded yet	–

Declared record

What the catalogue claims about this model

GLM 5.2 is a large-scale reasoning model from Z.ai. It supports text input and output with a 1M-token context window, and is suited for long-horizon agent workflows, project-level software engineering,...

Modalities: text->text
Declared tokenizer: Other
Prompt price: $0 / M tokens
Completion price: $0 / M tokens

Supported parameters

frequency_penaltyinclude_reasoningmax_tokensmin_ppresence_penaltyreasoningreasoning_effortrepetition_penaltyresponse_formatseedstopstructured_outputstemperaturetool_choicetoolstop_ktop_p

defaults: {"temperature":1,"top_p":0.95,"top_k":null,"frequency_penalty":null,"presence_penalty":null,"repetition_penalty":null}

Catalogue entry Weights on Hugging Face

History

Every observation, kept as taken

16 June 2026Enters the OpenRouter catalogue with no declared family.

Cite this page as the evidence record for Z.ai: GLM 5.2 (free): the URL is stable, measurements are dated, and revisions append to the history above. Method: tokenizer fingerprinting, v1, 50 strings. The raw data behind every figure is on the data page.