Compare / head-to-head
gpt-oss-120bvsQwen3.5 35B-A3B
Qwen3.5 35B-A3B leads 2 of 3 shared benchmarks. Qwen3.5 35B-A3B has the larger context window (262K tokens).
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
1 – 2
Qwen3.5 35B-A3B leads
Cheaper per token
—
list price, input + output
Larger context
Qwen3.5 35B-A3B
262K tokens
Provider uptime (30d)
95.0311% · —
OpenAI · Qwen
gpt-oss-120b
OpenAI · released 2025-08-05
text
- Context
- 131K
- Max out
- 131K
- Input /1M
- —
- Output /1M
- —
- Cached /1M
- —
- Scores
- 6 · 5 core
Qwen3.5 35B-A3B
Qwen
textvision
Quality
Benchmark matrix
3 shared · 2 only gpt-oss-120b · 1 only Qwen3.5 35B-A3B| Benchmark | gpt-oss-120b | Qwen3.5 35B-A3B | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 3 | ||||
| GPQA Diamond | 80.1% ↗ | 83.5% ↗epoch | -3.4 pt | Qwen3.5 35B-A3B |
| LMArena Elo | 1365.9 ↗ | 1395.5 ↗ | -29.6 | Qwen3.5 35B-A3B |
| OTIS Mock AIME 2024-2025 (Epoch AI run) | 88.9% ↗epoch | 54.4% ↗epoch | +34.5 pt | gpt-oss-120b |
| Only gpt-oss-120b reports · 2 | ||||
| SWE-bench Verified | 62.4% ↗ | not reported | — | — |
| AIME 2025 | 90% ↗matharena ⚠ | not reported | — | — |
| Only Qwen3.5 35B-A3B reports · 1 | ||||
| AIME 2026 | not reported | 93.3% ↗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 gpt-oss-120b minus Qwen3.5 35B-A3B 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 | gpt-oss-120b | Qwen3.5 35B-A3B | Edge |
|---|---|---|---|
| Context window | 131K tokens | 262K tokens | Qwen3.5 35B-A3B |
| Max output | 131K tokens | — | — |
| Input price / 1M | — | $0.057 ↗ | — |
| Output price / 1M | — | $0.459 ↗ | — |
| Cached input / 1M | — | — | — |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | — | $0.516 | — |
| Modalities | text | text · vision | Qwen3.5 35B-A3B |
| Released | 2025-08-05 | — | — |
| Cited benchmark scores | 6 | 4 | — |
Reliability
Provider status
Last 60 days · refreshed daily on this page · live on /statusMore matchups
gpt-oss-120b vs …
Models sharing the most benchmarksMore matchups
Qwen3.5 35B-A3B vs …
Models sharing the most benchmarksBuilt by Respan
Which one wins on your data?
Public benchmarks are a starting point. Run gpt-oss-120b and Qwen3.5 35B-A3B on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.