GLM 4.5 Air
Fast and lightToolsZ.ai · Released July 2025 · Knowledge cutoff December 2024
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...
It is part of Z.ai's GLM series, an open-weight line where the 5.x generation leads, Turbo servings cut latency and cost, and 5V adds vision.
Facts and pricing
- Provider
- Z.ai
- Context window
- 131K tokens
- Input price
- 1.4 credits / 1M tokens ($0.13 raw)
- Output price
- 9.3 credits / 1M tokens ($0.85 raw)
- Vision (image input)
- No
- Tool calling
- Yes
- Extended reasoning
- No
Credits are what Zeplik bills: 1 credit = $0.10, computed from the raw provider rate with a 1.10x margin. Raw prices shown per 1M tokens.
Try GLM 4.5 Air now
What GLM 4.5 Air is best for
- High-volume everyday tasks where speed and cost matter: summaries, drafts, quick questions
- Tool use and agents: reliably calls functions, so it can search, run skills and drive workflows
Example prompts
Prompts that suit a fast and light model like GLM 4.5 Air:
- Summarize this article in five bullet points
- Rewrite this email to be shorter and friendlier
- Give me ten name ideas for a hiking newsletter
- Translate this paragraph to Spanish and keep the tone
Z.ai family
| Model | Context | Input cr/M | Output cr/M | Released |
|---|---|---|---|---|
| GLM 5.2 | 1.0M | 5.9 | 19.4 | June 2026 |
| GLM 5.1 | 203K | 10.6 | 33.4 | April 2026 |
| GLM 5V Turbo | 203K | 13.2 | 44.0 | April 2026 |
| GLM 5 Turbo | 262K | 13.2 | 44.0 | March 2026 |
| GLM 5 | 203K | 6.6 | 21.1 | February 2026 |
| GLM 4.7 Flash | 203K | 0.66 | 4.4 | January 2026 |
| GLM 4.7 | 203K | 4.4 | 19.3 | December 2025 |
| GLM 4.6V | 131K | 3.3 | 9.9 | December 2025 |
| GLM 4.6 | 203K | 4.7 | 19.1 | September 2025 |
| GLM 4.5V | 66K | 6.6 | 19.8 | August 2025 |
Frequently asked questions
- What is GLM 4.5 Air?
- GLM 4.5 Air is an AI model by Z.ai. 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...
- How much does GLM 4.5 Air cost on Zeplik?
- Input tokens cost 1.4 credits per million and output tokens 9.3 credits per million (1 credit = $0.10; the raw provider rates are $0.13 and $0.85 per million). New accounts start with free credits.
- How long can a conversation with GLM 4.5 Air be?
- GLM 4.5 Air has a 131K-token context window (131,072 tokens), which covers the conversation plus any documents you attach.
- Does GLM 4.5 Air support images and tools?
- GLM 4.5 Air is text-only and supports tool calling.
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