$0.20 per 1M input tokens and $1.10 per 1M output tokens; cached input $0.03 per 1M; cheapest via Novita at $0.13 / $0.85.
There is no free API; the cheapest paid price is $0.13 per 1M input tokens. The weights are open, so you can run it yourself.
#221 of 334 in Chat & Knowledge, #90 of 239 in Coding, #116 of 242 in Agents & Tool Use, #114 of 195 in Writing & Language.
On AA-LCR (long context) 1.1, GLM 4.5 Air scores 46.7 vs 47 — about the same.
Through the API of DeepInfra, Novita, SiliconFlow.
131K tokens, with up to 98K output tokens.
Released 2025-07-28. It has been superseded by GLM 4.7 Flash.
Yes, the weights are open (MIT licence).
The weights are open and can be self-hosted; hardware needs are not confirmed yet.
No, it accepts text only.
GLM 4.5 Air is an open-weights language model from Z.ai, released Jul 2025.
Solar Mini 4 (cheaper), GPT-6 Luna (better), Muse Glimmer 30B (open weights).