Compare / head-to-head
GLM-4.5-XvsSolar Pro 4
GLM-4.5-X and Solar Pro 4 do not yet share a public benchmark, so quality cannot be compared apples-to-apples. Solar Pro 4 is 7.4x cheaper per token. Solar Pro 4 has the larger context window (512K tokens).
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
0
no overlap yet
Cheaper per token
Solar Pro 4
7.4x cheaper, input + output
Larger context
Solar Pro 4
512K tokens
Provider uptime (30d)
— · —
Z.ai · Upstage
GLM-4.5-X
Z.ai
text
Solar Pro 4
Upstage · released 2026-08-20
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Quality
Benchmark matrix
0 shared · 0 only GLM-4.5-X · 2 only Solar Pro 4| Benchmark | GLM-4.5-X | Solar Pro 4 | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 0 | ||||
| No public benchmark is reported for both models yet. | ||||
| Only GLM-4.5-X reports · 0 | ||||
| GLM-4.5-X reports nothing Solar Pro 4 does not. | ||||
| Only Solar Pro 4 reports · 2 | ||||
| LMArena Elo | not reported | 1377.3 ↗ | — | — |
| Artificial Analysis Intelligence Index | not reported | 42 ↗ | — | — |
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-X minus Solar Pro 4 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-X | Solar Pro 4 | Edge |
|---|---|---|---|
| Context window | 128K tokens | 512K tokens | Solar Pro 4 |
| Max output | 98K tokens | — | — |
| Input price / 1M | $2.2 ↗ | $0.3 ↗ | Solar Pro 4 |
| Output price / 1M | $8.9 ↗ | $1.2 ↗ | Solar Pro 4 |
| Cached input / 1M | $0.45 ↗ | $0.06 ↗ | Solar Pro 4 |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $11.1 | $1.5 | Solar Pro 4 |
| Modalities | text | text | Tie |
| Released | — | 2026-08-20 | — |
| Cited benchmark scores | 0 | 2 | — |
Reliability
Provider status
Last 60 days · refreshed daily on this page · live on /statusMore matchups
Solar Pro 4 vs …
Models sharing the most benchmarksBuilt by Respan
Which one wins on your data?
Public benchmarks are a starting point. Run GLM-4.5-X and Solar Pro 4 on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.