ScaleDown: Summarize vs Z.ai: GLM 4.5 Air
On input price, ScaleDown: Summarize is ~3.3× cheaper. Verified 2026-10-21.
ScaleDown: Summarize $0.040/FreevsZ.ai: GLM 4.5 Air $0.130/$0.850
Verdict
On blended price (3:1 input:output), ScaleDown: Summarize is ~10.3× cheaper ($0.040/Free vs $0.130/$0.850 per 1M tokens).
Pricing
Per-million-token list prices, verified 2026-10-21. Green marks the better value.
| Metric | ScaleDown: Summarize | Z.ai: GLM 4.5 Air |
|---|---|---|
| Input / 1M | $0.040 | $0.130 |
| Output / 1M | Free | $0.850 |
| Cache read / 1M | — | $0.025 |
| Blended (3:1) | $0.030/1M | $0.310/1M |
| Estimated monthly cost | ScaleDown: Summarize | Z.ai: GLM 4.5 Air |
|---|---|---|
| Chatbot10,000 reqs · 800/400 tok | $0.32 | $4.44 |
| Coding agent5,000 reqs · 8000/2000 tok | $1.60 | $13.70 |
| RAG pipeline30,000 reqs · 4000/500 tok | $4.80 | $28.35 |
Plug in your own numbers in the calculator, or paste a real bill into the Bill Shredder.
Specifications & capabilities
| Metric | ScaleDown: Summarize | Z.ai: GLM 4.5 Air |
|---|---|---|
| Context window | 1M | 131K |
| Max output | 4K | 98K |
| Vision input | ✓ | – |
| Tool calling | – | ✓ |
| Reasoning | – | ✓ |
Provider
Infrastructure metrics for the organizations behind these models.
| Metric | scaledown | Z.ai (GLM) |
|---|---|---|
| Listed endpoints | — | 4 |
| Reliability | — | 99.2% |
| Avg latency | — | 500 ms |
| Pricing tiers | — | standard, free, batch |
Full details: ScaleDown: Summarize pricing · Z.ai: GLM 4.5 Air pricing