Z.ai: GLM 4.5 Air 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.
| Signal | Result | Reference |
|---|---|---|
| Tokenizer signature | Exact match with 1 other model | tk_3eaaf3e0 |
| API surface | No other entry shares this exact contract | api_ec312174 |
| Context and output | 131,072 context · 98,304 max output | declared |
| Reasoning contract | Optional | declared |
| Serving providers observed | SiliconFlow, Z.AI | measured 21 August 2026 |
Click a row to open the full comparison.
An x marks a row excluded as corrupt (caching or provider interference detected during measurement). Overhead subtracted: 5 prompt tokens.
GLM-4.5-Air is the lightweight variant of our latest flagship model family, also purpose-built for agent-centric applications. Like GLM-4.5, it adopts the Mixture-of-Experts (MoE) architecture but with a more compact parameter...
Supported parameters
frequency_penaltyinclude_reasoningmax_tokenspresence_penaltyreasoningrepetition_penaltyseedstoptemperaturetool_choicetoolstop_ktop_p
defaults: {"temperature":0.75,"top_p":null,"frequency_penalty":null}
Cite this page as the evidence record for Z.ai: GLM 4.5 Air: 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.
