Compare / head-to-head
GLM-4.5-AirvsQwen3.8 27B
Qwen3.8 27B leads 1 of 1 shared benchmark. GLM-4.5-Air is 1.6x cheaper per token. Qwen3.8 27B has the larger context window (262K tokens).
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
0 – 1
Qwen3.8 27B leads
Cheaper per token
GLM-4.5-Air
1.6x cheaper, input + output
Larger context
Qwen3.8 27B
262K tokens
Provider uptime (30d)
— · —
Z.ai · Qwen
GLM-4.5-Air
Z.ai
text
Qwen3.8 27B
Qwen · released 2026-08-14
textvision
Quality
Benchmark matrix
1 shared · 1 only GLM-4.5-Air · 3 only Qwen3.8 27B| Benchmark | GLM-4.5-Air | Qwen3.8 27B | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 1 | ||||
| LMArena Elo | 1383.6 ↗ | 1439.3 ↗ | -55.7 | Qwen3.8 27B |
| Only GLM-4.5-Air reports · 1 | ||||
| AIME 2025 | 83.3% ↗matharena ⚠ | not reported | — | — |
| Only Qwen3.8 27B reports · 3 | ||||
| GPQA Diamond | not reported | 89.2% ↗ | — | — |
| SWE-Bench Pro | not reported | 61.7% ↗ | — | — |
| Terminal-Bench 2.1 | not reported | 73% ↗ | — | — |
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 Qwen3.8 27B 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 | Qwen3.8 27B | Edge |
|---|---|---|---|
| Context window | 128K tokens | 262K tokens | Qwen3.8 27B |
| Max output | 98K tokens | — | — |
| Input price / 1M | $0.2 ↗ | $0.424 ↗ | GLM-4.5-Air |
| Output price / 1M | $1.1 ↗ | $1.7 ↗ | GLM-4.5-Air |
| Cached input / 1M | $0.03 ↗ | — | — |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $1.3 | $2.12 | GLM-4.5-Air |
| Modalities | text | text · vision | Qwen3.8 27B |
| Released | — | 2026-08-14 | — |
| Cited benchmark scores | 2 | 4 | — |
Reliability
Provider status
Last 60 days · refreshed daily on this page · live on /statusMore matchups
GLM-4.5-Air vs …
Models sharing the most benchmarksMore matchups
Qwen3.8 27B 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 Qwen3.8 27B on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.