Compare / head-to-head
Claude Opus 4.1vsGLM-5
GLM-5 leads 3 of 4 shared benchmarks. GLM-5 is 21.4x 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
1 – 3
GLM-5 leads
Cheaper per token
GLM-5
21.4x cheaper, input + output
Larger context
Tie
both 200K tokens
Provider uptime (30d)
100% · —
Anthropic · Z.ai
Claude Opus 4.1
Anthropic · released 2025-08-05
textvision
Quality
Benchmark matrix
4 shared · 2 only Claude Opus 4.1 · 4 only GLM-5| Benchmark | Claude Opus 4.1 | GLM-5 | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 4 | ||||
| SWE-bench Verified | 74.5% ↗ | 77.8% ↗ | -3.3 pt | GLM-5 |
| GPQA Diamond | 77.3% ↗epoch | 87.8% ↗epoch | -10.5 pt | GLM-5 |
| OTIS Mock AIME 2024-2025 (Epoch AI run) | 68.9% ↗epoch | 80% ↗epoch | -11.1 pt | GLM-5 |
| SWE-bench Verified (Epoch AI run) | 73.3% ↗epoch | 72.1% ↗epoch | +1.2 pt | Claude Opus 4.1 |
| Only Claude Opus 4.1 reports · 2 | ||||
| FrontierMath Tier 4 v2 (Epoch AI run) | 2.4% ↗epoch | not reported | — | — |
| FrontierMath Tiers 1-3 v2 (Epoch AI run) | 12.6% ↗epoch | not reported | — | — |
| Only GLM-5 reports · 4 | ||||
| AIME 2025 | not reported | 96.7% ↗matharena ⚠ | — | — |
| AIME 2026 | not reported | 96.7% ↗matharena ⚠ | — | — |
| LMArena Elo | not reported | 1446.3 ↗ | — | — |
| Terminal-Bench 2.0 | not reported | 56.2% ↗ | — | — |
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 Opus 4.1 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 Opus 4.1 | GLM-5 | Edge |
|---|---|---|---|
| Context window | 200K tokens | 200K tokens | Tie |
| Max output | 32K tokens | 131K tokens | GLM-5 |
| Input price / 1M | $15 ↗ | $1 ↗ | GLM-5 |
| Output price / 1M | $75 ↗ | $3.2 ↗ | GLM-5 |
| Cached input / 1M | $1.5 ↗ | $0.2 ↗ | GLM-5 |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $90 | $4.2 | GLM-5 |
| Modalities | text · vision | text | Claude Opus 4.1 |
| Released | 2025-08-05 | — | — |
| Cited benchmark scores | 6 | 8 | — |
Reliability
Provider status
Last 60 days · refreshed daily on this page · live on /statusMore matchups
Claude Opus 4.1 vs …
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GLM-5 vs …
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Which one wins on your data?
Public benchmarks are a starting point. Run Claude Opus 4.1 and GLM-5 on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.