GLM 4.5 Air vs Midm K3.0 Pro: cost comparison
Prices updated 2026-11-12 · computed from live provider data
Short answer: Midm K3.0 Pro is cheaper on a
3:1 input/output blend — $0.350 per million tokens versus
$0.425, a 18% difference.
Midm K3.0 Pro offers the larger context window at 261,795 tokens, against 131,072 for GLM 4.5 Air.
Head to head
| GLM 4.5 Air | Midm K3.0 Pro | |
|---|---|---|
| Input, per 1M tokens | $0.200 | $0.200 |
| Output, per 1M tokens | $1.10 | $0.800 |
| Blended 3:1, per 1M | $0.425 | $0.350 |
| Context window | 131,072 | 261,795 |
| Vendor | z-ai | kt |
Monthly cost at real volumes
| Workload (input / output) | GLM 4.5 Air | Midm K3.0 Pro |
|---|---|---|
| 1M in / 250K out | $0.475 | $0.400 |
| 10M in / 2.5M out | $4.75 | $4.00 |
| 100M in / 25M out | $47.50 | $40.00 |
Which should you pick?
Pick Midm K3.0 Pro when you need the longer context window (261,795 vs 131,072 tokens). Pick Midm K3.0 Pro when price per token dominates your workload — high-volume classification, extraction, or batch summarisation.