Compare / head-to-head
Claude Sonnet 4.5vsGLM-5
GLM-5 leads 6 of 6 shared benchmarks. GLM-5 is 4.3x cheaper per token. Both offer a 200K-token context window.
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
0 – 6
GLM-5 leads
Cheaper per token
GLM-5
4.3x cheaper, input + output
Larger context
Tie
both 200K tokens
Provider uptime (30d)
100% · —
Anthropic · Z.ai
Claude Sonnet 4.5
Anthropic · released 2025-09-29
textvision
Quality
Benchmark matrix
6 shared · 14 only Claude Sonnet 4.5 · 2 only GLM-5| Benchmark | Claude Sonnet 4.5 | GLM-5 | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 6 | ||||
| SWE-bench Verified | 77.2% ↗ | 77.8% ↗ | -0.6 pt | GLM-5 |
| GPQA Diamond | 83.4% ↗ | 87.8% ↗epoch | -4.4 pt | GLM-5 |
| AIME 2025 | 84.2% ↗matharena ⚠ | 96.7% ↗matharena ⚠ | -12.5 pt | GLM-5 |
| OTIS Mock AIME 2024-2025 (Epoch AI run) | 77.8% ↗epoch | 80% ↗epoch | -2.2 pt | GLM-5 |
| SWE-bench Verified (Epoch AI run) | 71.3% ↗epoch | 72.1% ↗epoch | -0.8 pt | GLM-5 |
| Terminal-Bench 2.0 | 51% ↗ | 56.2% ↗ | -5.2 pt | GLM-5 |
| Only Claude Sonnet 4.5 reports · 14 | ||||
| Humanity's Last Exam (no tools) | 17.7% ↗ | not reported | — | — |
| ARC-AGI-2 (Verified) | 13.6% ↗ | not reported | — | — |
| FrontierMath Tier 4 v2 (Epoch AI run) | 2.4% ↗epoch | not reported | — | — |
| FrontierMath Tiers 1-3 v2 (Epoch AI run) | 23.9% ↗epoch | not reported | — | — |
| GDPval-AA | 1276 ↗ | not reported | — | — |
| Humanity's Last Exam (with tools) | 33.6% ↗ | not reported | — | — |
| MCP Atlas | 43.8% ↗ | not reported | — | — |
| MMMLU | 89.5% ↗ | not reported | — | — |
| MMMU-Pro (no tools) | 63.4% ↗ | not reported | — | — |
| MMMU-Pro (with tools) | 68.9% ↗ | not reported | — | — |
| OSWorld-Verified | 61.4% ↗ | not reported | — | — |
| SimpleQA Verified | 30.7% ↗epoch | not reported | — | — |
| Tau2-bench Retail | 86.2% ↗ | not reported | — | — |
| Tau2-bench Telecom | 98% ↗ | not reported | — | — |
| Only GLM-5 reports · 2 | ||||
| AIME 2026 | not reported | 96.7% ↗matharena ⚠ | — | — |
| LMArena Elo | not reported | 1446.3 ↗ | — | — |
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 Claude Sonnet 4.5 minus GLM-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 | Claude Sonnet 4.5 | GLM-5 | Edge |
|---|---|---|---|
| Context window | 200K tokens | 200K tokens | Tie |
| Max output | 64K tokens | 131K tokens | GLM-5 |
| Input price / 1M | $3 ↗ | $1 ↗ | GLM-5 |
| Output price / 1M | $15 ↗ | $3.2 ↗ | GLM-5 |
| Cached input / 1M | $0.3 ↗ | $0.2 ↗ | GLM-5 |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $18 | $4.2 | GLM-5 |
| Modalities | text · vision | text | Claude Sonnet 4.5 |
| Released | 2025-09-29 | — | — |
| Cited benchmark scores | 21 | 8 | — |
Reliability
Provider status
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