Compare / head-to-head
GLM-4.5-AirvsGLM-4.6
GLM-4.6 leads 2 of 2 shared benchmarks. GLM-4.5-Air is 2.2x cheaper per token. GLM-4.6 has the larger context window (200K tokens).
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
0 – 2
GLM-4.6 leads
Cheaper per token
GLM-4.5-Air
2.2x cheaper, input + output
Larger context
GLM-4.6
200K tokens
Provider uptime (30d)
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Z.ai
GLM-4.5-Air
Z.ai
text
Quality
Benchmark matrix
2 shared · 0 only GLM-4.5-Air · 0 only GLM-4.6| Benchmark | GLM-4.5-Air | GLM-4.6 | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 2 | ||||
| AIME 2025 | 83.3% ↗matharena ⚠ | 91.7% ↗matharena ⚠ | -8.4 pt | GLM-4.6 |
| LMArena Elo | 1383.6 ↗ | 1440.5 ↗ | -56.9 | GLM-4.6 |
| Only GLM-4.5-Air reports · 0 | ||||
| GLM-4.5-Air reports nothing GLM-4.6 does not. | ||||
| Only GLM-4.6 reports · 0 | ||||
| GLM-4.6 reports nothing GLM-4.5-Air does not. | ||||
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is GLM-4.5-Air minus GLM-4.6 in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing
Side by side
Official pricing pages and model cards| Spec | GLM-4.5-Air | GLM-4.6 | Edge |
|---|---|---|---|
| Context window | 128K tokens | 200K tokens | GLM-4.6 |
| Max output | 98K tokens | 131K tokens | GLM-4.6 |
| Input price / 1M | $0.2 ↗ | $0.6 ↗ | GLM-4.5-Air |
| Output price / 1M | $1.1 ↗ | $2.2 ↗ | GLM-4.5-Air |
| Cached input / 1M | $0.03 ↗ | $0.11 ↗ | GLM-4.5-Air |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $1.3 | $2.8 | GLM-4.5-Air |
| Modalities | text | text | Tie |
| Released | — | — | — |
| Cited benchmark scores | 2 | 2 | — |
Reliability
Z.ai status
Last 60 days · refreshed daily on this page · live on /statusMore matchups
GLM-4.5-Air vs …
Models sharing the most benchmarksMore matchups
GLM-4.6 vs …
Models sharing the most benchmarksBuilt by Respan
Which one wins on your data?
Public benchmarks are a starting point. Run GLM-4.5-Air and GLM-4.6 on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.