Compare / head-to-head
GLM-5.2vsGPT-6 Astra
GPT-6 Astra leads 5 of 5 shared benchmarks. GLM-5.2 is 10.3x cheaper per token. GPT-6 Astra has the larger context window (1.1M tokens).
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
0 – 5
GPT-6 Astra leads
Cheaper per token
GLM-5.2
10.3x cheaper, input + output
Larger context
GPT-6 Astra
1.1M tokens
Provider uptime (30d)
— · 95.3079%
Z.ai · OpenAI
GLM-5.2
Z.ai · released 2026-06-24
text
GPT-6 Astra
OpenAI · released 2026-09-03
textvision
Quality
Benchmark matrix
5 shared · 20 only GLM-5.2 · 2 only GPT-6 Astra| Benchmark | GLM-5.2 | GPT-6 Astra | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 5 | ||||
| GPQA Diamond | 91.9% ↗epoch | 96% ↗ | -4.1 pt | GPT-6 Astra |
| FrontierMath Tier 4 v2 (Epoch AI run) | 29.3% ↗epoch | 97.6% ↗epoch | -68.3 pt | GPT-6 Astra |
| FrontierMath Tiers 1-3 v2 (Epoch AI run) | 59.2% ↗epoch | 93.7% ↗epoch | -34.5 pt | GPT-6 Astra |
| OTIS Mock AIME 2024-2025 (Epoch AI run) | 86.4% ↗epoch | 100% ↗epoch | -13.6 pt | GPT-6 Astra |
| SimpleQA Verified | 34.2% ↗epoch | 75.6% ↗epoch | -41.4 pt | GPT-6 Astra |
| Only GLM-5.2 reports · 20 | ||||
| AIME 2026 | 90% ↗matharena ⚠ | not reported | — | — |
| Agents' Last Exam (ALE-CLI) | 23.8% ↗ | not reported | — | — |
| AutomationBench v1.0.6 | 26.2% ↗ | not reported | — | — |
| CyberGym | 77.2% ↗ | not reported | — | — |
| DeepSWE v1.1 | 46.2% ↗ | not reported | — | — |
| ExploitBench | 24.4% ↗ | not reported | — | — |
| ExploitGym 2h | 29 ↗ | not reported | — | — |
| ExploitGym 6h | 39 ↗ | not reported | — | — |
| FrontierSWE | 67.5% ↗ | not reported | — | — |
| GDPval-AA v2 | 1508 ↗ | not reported | — | — |
| HLE (with tools) | 54.7% ↗ | not reported | — | — |
| NL2Repo | 48.9% ↗ | not reported | — | — |
| PostTrainBench | 31.7% ↗ | not reported | — | — |
| ProgramBench (Almost Solved) | 9.5% ↗ | not reported | — | — |
| SWE-Bench Pro | 62.1% ↗ | not reported | — | — |
| SWE-bench Verified (Epoch AI run) | 78.7% ↗epoch | not reported | — | — |
| SWE-Marathon v1.1 | 19.4% ↗ | not reported | — | — |
| Terminal-Bench 2.1 | 81% ↗ | not reported | — | — |
| Terminal-Bench 3.0 | 4.6% ↗ | not reported | — | — |
| Toolathlon Verified | 59.9% ↗ | not reported | — | — |
| Only GPT-6 Astra reports · 2 | ||||
| AutomationBench | not reported | 41.4% ↗ | — | — |
| Terminal-Bench Science 0.1 | not reported | 64.6% ↗ | — | — |
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-5.2 minus GPT-6 Astra 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-5.2 | GPT-6 Astra | Edge |
|---|---|---|---|
| Context window | 1M tokens | 1.1M tokens | GPT-6 Astra |
| Max output | 131K tokens | 128K tokens | GLM-5.2 |
| Input price / 1M | $1.4 ↗ | $10 ↗ | GLM-5.2 |
| Output price / 1M | $4.4 ↗ | $50 ↗ | GLM-5.2 |
| Cached input / 1M | $0.26 ↗ | $1 ↗ | GLM-5.2 |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $5.8 | $60 | GLM-5.2 |
| Modalities | text | text · vision | GPT-6 Astra |
| Released | 2026-06-24 | 2026-09-03 | — |
| Cited benchmark scores | 26 | 8 | — |
Reliability
Provider status
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