Compare / head-to-head
GLM-5vsGrok 4.5
Grok 4.5 leads 3 of 3 shared benchmarks. GLM-5 is 1.9x cheaper per token. Grok 4.5 has the larger context window (500K tokens).
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
0 – 3
Grok 4.5 leads
Cheaper per token
GLM-5
1.9x cheaper, input + output
Larger context
Grok 4.5
500K tokens
Provider uptime (30d)
— · —
Z.ai · xAI
Quality
Benchmark matrix
3 shared · 5 only GLM-5 · 3 only Grok 4.5| Benchmark | GLM-5 | Grok 4.5 | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 3 | ||||
| GPQA Diamond | 87.8% ↗epoch | 93.4% ↗epoch | -5.6 pt | Grok 4.5 |
| LMArena Elo | 1446.3 ↗ | 1450.1 ↗ | -3.8 | Grok 4.5 |
| OTIS Mock AIME 2024-2025 (Epoch AI run) | 80% ↗epoch | 97.8% ↗epoch | -17.8 pt | Grok 4.5 |
| Only GLM-5 reports · 5 | ||||
| SWE-bench Verified | 77.8% ↗ | not reported | — | — |
| AIME 2025 | 96.7% ↗matharena ⚠ | not reported | — | — |
| AIME 2026 | 96.7% ↗matharena ⚠ | not reported | — | — |
| SWE-bench Verified (Epoch AI run) | 72.1% ↗epoch | not reported | — | — |
| Terminal-Bench 2.0 | 56.2% ↗ | not reported | — | — |
| Only Grok 4.5 reports · 3 | ||||
| FrontierMath Tier 4 v2 (Epoch AI run) | not reported | 24.4% ↗epoch | — | — |
| FrontierMath Tiers 1-3 v2 (Epoch AI run) | not reported | 57.2% ↗epoch | — | — |
| SimpleQA Verified | not reported | 48.3% ↗epoch | — | — |
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-5 minus Grok 4.5 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-5 | Grok 4.5 | Edge |
|---|---|---|---|
| Context window | 200K tokens | 500K tokens | Grok 4.5 |
| Max output | 131K tokens | — | — |
| Input price / 1M | $1 ↗ | $2 ↗ | GLM-5 |
| Output price / 1M | $3.2 ↗ | $6 ↗ | GLM-5 |
| Cached input / 1M | $0.2 ↗ | $0.3 ↗ | GLM-5 |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $4.2 | $8 | GLM-5 |
| Modalities | text | text · vision | Grok 4.5 |
| Released | — | 2026-07-08 | — |
| Cited benchmark scores | 8 | 6 | — |
Reliability
Provider status
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GLM-5 vs …
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Grok 4.5 vs …
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Which one wins on your data?
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