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GLM 4.5 Air: price, performance and context
Open GLM 4.5 Air by Z.ai costs $0.13 per 1M input and $0.85 per 1M output tokens, handles up to 131.1K tokens in one request (≈ 390 pages of text) and scores 11.1 points on the AgentKernel performance index, rank 148 of 212.
Privacy: zero data retention with 3 providers, not in the EU. Availability over the last 24 h: 100%.
Open in the interactive comparisonKey facts
- Licence
- Open weights: free to download and self-host
- Input / 1M tokens
- $0.13
- Output / 1M tokens
- $0.85
- Context window
- 131.1K tokens
- Max. output
- 98.3K tokens
- Performance index
- 11.1 points · rank 148 of 212
- Coding index
- n/a
- Agentic index
- n/a
- Cost at your usage
- $0.343 / month
- Knowledge cutoff
- Dec 2024
- In the catalog since
- Jul 25, 2025
- Capabilities
- Reasoning, Tool Calling
What do you get for $10.00?
Rules of thumb from the cost calculator, base rates without caching or taxes.
| Task | Cost per task | For $10.00 |
|---|---|---|
| Chat repliesA question with a short history, a detailed answer | $0.00 | 22,000 |
| Email draftsBullet points in, a finished email out | $0.00 | 27,000 |
| Document summariesRead 10 pages, write a one-page summary | $0.001 | 12,000 |
| Code reviewsReview and comment on 500 lines of code | $0.002 | 6,400 |
| Book analysesAnalyse a 300-page book in one go | $0.015 | 680 |
Cheaper with similar performance
| Model | Licence | Performance | Your cost / month |
|---|---|---|---|
| Ling 3.1 FlashinclusionAI | Proprietary | 41.1 | $0.00 |
| Ling 3.0 Flash VLinclusionAI | Open | 24.6 | $0.036 |
| Ling 3.0 FlashinclusionAI | Open | 20.1 | $0.037 |
Stronger models
| Model | Licence | Performance | Your cost / month |
|---|---|---|---|
| GLM 4.6VZ.ai | Open | 11.2 | $0.525 |
| Qwen3 Next 80B A3B ThinkingQwen | Open | 11.2 | $0.45 |
| Mistral Small 4Mistral | Open | 11.3 | $0.30 |