Compare / head-to-head
GLM-4.5-AirvsSonar
GLM-4.5-Air and Sonar do not yet share a public benchmark, so quality cannot be compared apples-to-apples. GLM-4.5-Air is 1.5x cheaper per token. Both offer a 128K-token context window.
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
0
no overlap yet
Cheaper per token
GLM-4.5-Air
1.5x cheaper, input + output
Larger context
Tie
both 128K tokens
Provider uptime (30d)
— · 100%
Z.ai · Perplexity
GLM-4.5-Air
Z.ai
text
Quality
Benchmark matrix
0 shared · 2 only GLM-4.5-Air · 1 only Sonar| Benchmark | GLM-4.5-Air | Sonar | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 0 | ||||
| No public benchmark is reported for both models yet. | ||||
| Only GLM-4.5-Air reports · 2 | ||||
| AIME 2025 | 83.3% ↗matharena ⚠ | not reported | — | — |
| LMArena Elo | 1383.6 ↗ | not reported | — | — |
| Only Sonar reports · 1 | ||||
| SimpleQA F-score | not reported | 77.3% ↗ | — | — |
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 Sonar 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 | Sonar | Edge |
|---|---|---|---|
| Context window | 128K tokens | 128K tokens | Tie |
| Max output | 98K tokens | — | — |
| Input price / 1M | $0.2 ↗ | $1 ↗ | GLM-4.5-Air |
| Output price / 1M | $1.1 ↗ | $1 ↗ | Sonar |
| Cached input / 1M | $0.03 ↗ | — | — |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $1.3 | $2 | GLM-4.5-Air |
| Modalities | text | text | Tie |
| Released | — | 2025-01-21 | — |
| Cited benchmark scores | 2 | 1 | — |
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
Sonar 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 Sonar on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.