Compare / head-to-head
GLM-5.3-Flashvs
Grok 4.6
Grok 4.6 leads 16 of 21 shared benchmarks. GLM-5.3-Flash is 12.3x cheaper per token. GLM-5.3-Flash has the larger context window (1M tokens).
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
4 – 16
Grok 4.6 leads · 1 tied
Cheaper per token
GLM-5.3-Flash
12.3x cheaper, input + output
Larger context
GLM-5.3-Flash
1M tokens
Providers
2 providers
Z.ai · xAI
GLM-5.3-Flash
Z.ai · released 2026-08-26
textvision
Quality
Benchmark matrix
21 shared · 14 only GLM-5.3-Flash · 17 only Grok 4.6| Benchmark | GLM-5.3-Flash | Grok 4.6 | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 21 | ||||
| GPQA Diamond | 90.2% ↗epoch run | 94% ↗epoch run | -3.8 pt | Grok 4.6 |
| LMArena Elo | 1471.9 ↗ | 1453.8 ↗ | +18.1 | GLM-5.3-Flash |
| APEX-Agents (Mercor) | 52.8% ↗ | 65.3% ↗ | -12.5 pt | Grok 4.6 |
| Chess Puzzles (Epoch AI run) | 14% ↗epoch run | 40% ↗epoch run | -26 pt | Grok 4.6 |
| DeepSWE v1.1 | 63.4% ↗ | 65.9% ↗ | -2.5 pt | Grok 4.6 |
| DeepSWE v1.1 (Datacurve) | 63.4% ↗ | 67.5% ↗ | -4.1 pt | Grok 4.6 |
| FrontierMath Tier 4 v2 (Epoch AI run) | 17.1% ↗epoch run | 31.7% ↗epoch run | -14.6 pt | Grok 4.6 |
| FrontierMath Tiers 1-3 v2 (Epoch AI run) | 55.8% ↗epoch run | 66% ↗epoch run | -10.2 pt | Grok 4.6 |
| FrontierSWE V2 (Proximal Labs) | 18.1% ↗ | 25.3% ↗ | -7.2 pt | Grok 4.6 |
| LiveBench Agentic Coding (LiveBench) | 56.8% ↗ | 57% ↗ | -0.2 pt | Grok 4.6 |
| LiveBench Coding (LiveBench) | 79% ↗ | 76.8% ↗ | +2.2 pt | GLM-5.3-Flash |
| LiveBench Data Analysis (LiveBench) | 76.4% ↗ | 73.9% ↗ | +2.5 pt | GLM-5.3-Flash |
| LiveBench Instruction Following (LiveBench) | 52.8% ↗ | 71.9% ↗ | -19.1 pt | Grok 4.6 |
| LiveBench Language (LiveBench) | 77.3% ↗ | 83.7% ↗ | -6.4 pt | Grok 4.6 |
| LiveBench Mathematics (LiveBench) | 81.2% ↗ | 92.6% ↗ | -11.4 pt | Grok 4.6 |
| LiveBench Reasoning (LiveBench) | 77.6% ↗ | 90.5% ↗ | -12.9 pt | Grok 4.6 |
| LMArena Agent (LMArena) | -0.0044 ↗ | 0.0128 ↗ | 0 | Tie |
| LMArena Vision (LMArena) | 1278.4 ↗ | 1263.5 ↗ | +14.9 | GLM-5.3-Flash |
| LMArena WebDev (LMArena) | 1615.6 ↗ | 1619.5 ↗ | -3.9 | Grok 4.6 |
| Mystery Game Puzzles (Epoch AI run) | 8% ↗epoch run | 34% ↗epoch run | -26 pt | Grok 4.6 |
| OTIS Mock AIME 2024-2025 (Epoch AI run) | 93.9% ↗epoch run | 99.2% ↗epoch run | -5.3 pt | Grok 4.6 |
| Only GLM-5.3-Flash reports · 14 | ||||
| Agents' Last Exam (ALE-CLI) | 26.3% ↗ | not reported | — | — |
| AutomationBench v1.0.6 | 48.8% ↗ | not reported | — | — |
| BabyVision | 53.4% ↗ | not reported | — | — |
| Chartography (with tools) | 78% ↗ | not reported | — | — |
| CharXiv Reasoning (with tools) | 89.4% ↗ | not reported | — | — |
| GDPval-AA v2 | 1773 ↗ | not reported | — | — |
| HLE (with tools) | 55.3% ↗ | not reported | — | — |
| MMVU | 80.5% ↗ | not reported | — | — |
| MVBench | 77.8% ↗ | not reported | — | — |
| NL2Repo | 56.3% ↗ | not reported | — | — |
| OfficeQA Pro | 62.4% ↗ | not reported | — | — |
| Terminal-Bench 2.1 | 84.3% ↗ | not reported | — | — |
| Toolathlon Verified | 78.4% ↗ | not reported | — | — |
| Toolathlon-Verified (HKUST) | 78.4% ↗ | not reported | — | — |
| Only Grok 4.6 reports · 17 | ||||
| AA-Briefcase | not reported | 1577 ↗ | — | — |
| APEX-Agents | not reported | 57.5% ↗ | — | — |
| APEX-SWE | not reported | 56.4% ↗ | — | — |
| Artificial Analysis Intelligence Index | not reported | 61 ↗ | — | — |
| CursorBench 3.2 | not reported | 69.9% ↗ | — | — |
| EBR-bench (Epoch AI run) | not reported | 30.5% ↗epoch run | — | — |
| FrontierCode v1.1 (Extended) | not reported | 61.3% ↗ | — | — |
| Furniture Assembly (Epoch AI run) | not reported | 40% ↗epoch run | — | — |
| GDPVal-AA v2 | not reported | 1753 ↗ | — | — |
| Harvey LAB (Vals) | not reported | 15.8% ↗ | — | — |
| SAGE (Vals AI) | not reported | 28.9% ↗ | — | — |
| SimpleBench (SimpleBench) | not reported | 75.9% ↗ | — | — |
| SimpleQA Verified | not reported | 49.3% ↗epoch run | — | — |
| Terminal-Bench 3.0 | not reported | 26% ↗ | — | — |
| Terminal-Bench 4.0 (Vals AI) | not reported | 17.2% ↗ | — | — |
| Vending-Bench 2 (Andon Labs) | not reported | 9047.03 ↗ | — | — |
| WeirdML (Håvard Tveit Ihle) | not reported | 67.3% ↗ | — | — |
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-5.3-Flash minus Grok 4.6 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-5.3-Flash | Grok 4.6 | Edge |
|---|---|---|---|
| Context window | 1M tokens | 500K tokens | GLM-5.3-Flash |
| Max output | 131K tokens | — | — |
| Input price / 1M | $0.15 ↗ | $2 ↗ | GLM-5.3-Flash |
| Output price / 1M | $0.5 ↗ | $6 ↗ | GLM-5.3-Flash |
| Cached input / 1M | $0.03 ↗ | $0.5 ↗ | GLM-5.3-Flash |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $0.65 | $8 | GLM-5.3-Flash |
| Modalities | text · vision | text · vision | Tie |
| Released | 2026-08-26 | 2026-08-12 | — |
| Cited benchmark scores | 40 | 43 | — |
Reliability
Provider status
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