Compare / head-to-head
GLM-5.3-Flashvsgpt-oss-120b
GLM-5.3-Flash leads 3 of 3 shared benchmarks. 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
3 – 0
GLM-5.3-Flash leads
Cheaper per token
—
list price, input + output
Larger context
GLM-5.3-Flash
1M tokens
Provider uptime (30d)
— · 94.2446%
Z.ai · OpenAI
GLM-5.3-Flash
Z.ai · released 2026-09-16
textvision
gpt-oss-120b
OpenAI · released 2025-08-05
text
- Context
- 131K
- Max out
- 131K
- Input /1M
- —
- Output /1M
- —
- Cached /1M
- —
- Scores
- 6 · 5 core
Quality
Benchmark matrix
3 shared · 16 only GLM-5.3-Flash · 2 only gpt-oss-120b| Benchmark | GLM-5.3-Flash | gpt-oss-120b | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 3 | ||||
| GPQA Diamond | 90.2% ↗epoch | 80.1% ↗ | +10.1 pt | GLM-5.3-Flash |
| LMArena Elo | 1471.9 ↗ | 1365.9 ↗ | +106 | GLM-5.3-Flash |
| OTIS Mock AIME 2024-2025 (Epoch AI run) | 93.9% ↗epoch | 88.9% ↗epoch | +5 pt | GLM-5.3-Flash |
| Only GLM-5.3-Flash reports · 16 | ||||
| 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 | — | — |
| DeepSWE v1.1 | 63.4% ↗ | not reported | — | — |
| FrontierMath Tier 4 v2 (Epoch AI run) | 17.1% ↗epoch | not reported | — | — |
| FrontierMath Tiers 1-3 v2 (Epoch AI run) | 55.8% ↗epoch | 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 | — | — |
| Only gpt-oss-120b reports · 2 | ||||
| SWE-bench Verified | not reported | 62.4% ↗ | — | — |
| AIME 2025 | not reported | 90% ↗matharena ⚠ | — | — |
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 gpt-oss-120b 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 | gpt-oss-120b | Edge |
|---|---|---|---|
| Context window | 1M tokens | 131K tokens | GLM-5.3-Flash |
| Max output | 131K tokens | 131K tokens | Tie |
| Input price / 1M | $0.15 ↗ | — | — |
| Output price / 1M | $0.5 ↗ | — | — |
| Cached input / 1M | $0.03 ↗ | — | — |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $0.65 | — | — |
| Modalities | text · vision | text | GLM-5.3-Flash |
| Released | 2026-09-16 | 2025-08-05 | — |
| Cited benchmark scores | 19 | 6 | — |
Reliability
Provider status
Last 60 days · refreshed daily on this page · live on /statusMore matchups
GLM-5.3-Flash vs …
Models sharing the most benchmarksMore matchups
gpt-oss-120b vs …
Models sharing the most benchmarksBuilt by Respan
Which one wins on your data?
Public benchmarks are a starting point. Run GLM-5.3-Flash and gpt-oss-120b on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.