Compare / head-to-head
GPT-5 nanovsQwen3.5-Plus
Qwen3.5-Plus leads 3 of 3 shared benchmarks. GPT-5 nano is 1.8x cheaper per token. Qwen3.5-Plus has the larger context window (1M tokens).
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
0 – 3
Qwen3.5-Plus leads
Cheaper per token
GPT-5 nano
1.8x cheaper, input + output
Larger context
Qwen3.5-Plus
1M tokens
Provider uptime (30d)
94.2446% · —
OpenAI · Qwen
GPT-5 nano
OpenAI · released 2025-08-07
textvision
Qwen3.5-Plus
Qwen · released 2026-02-15
textvision
Quality
Benchmark matrix
3 shared · 4 only GPT-5 nano · 0 only Qwen3.5-Plus| Benchmark | GPT-5 nano | Qwen3.5-Plus | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 3 | ||||
| GPQA Diamond | 69.4% ↗epoch | 84.8% ↗epoch | -15.4 pt | Qwen3.5-Plus |
| OTIS Mock AIME 2024-2025 (Epoch AI run) | 81.1% ↗epoch | 86.7% ↗epoch | -5.6 pt | Qwen3.5-Plus |
| SimpleQA Verified | 11.7% ↗epoch | 25.4% ↗epoch | -13.7 pt | Qwen3.5-Plus |
| Only GPT-5 nano reports · 4 | ||||
| SWE-bench Verified | 54.7% ↗ | not reported | — | — |
| AIME 2025 | 85% ↗matharena ⚠ | not reported | — | — |
| FrontierMath Tier 4 v2 (Epoch AI run) | 2.4% ↗epoch | not reported | — | — |
| FrontierMath Tiers 1-3 v2 (Epoch AI run) | 20% ↗epoch | not reported | — | — |
| Only Qwen3.5-Plus reports · 0 | ||||
| Qwen3.5-Plus reports nothing GPT-5 nano does not. | ||||
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-5 nano minus Qwen3.5-Plus 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-5 nano | Qwen3.5-Plus | Edge |
|---|---|---|---|
| Context window | 400K tokens | 1M tokens | Qwen3.5-Plus |
| Max output | 128K tokens | — | — |
| Input price / 1M | $0.05 ↗ | $0.115 ↗ | GPT-5 nano |
| Output price / 1M | $0.4 ↗ | $0.688 ↗ | GPT-5 nano |
| Cached input / 1M | $0.005 ↗ | — | — |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $0.45 | $0.803 | GPT-5 nano |
| Modalities | text · vision | text · vision | Tie |
| Released | 2025-08-07 | 2026-02-15 | — |
| Cited benchmark scores | 7 | 3 | — |
Reliability
Provider status
Last 60 days · refreshed daily on this page · live on /statusMore matchups
GPT-5 nano vs …
Models sharing the most benchmarksMore matchups
Qwen3.5-Plus vs …
Models sharing the most benchmarksBuilt by Respan
Which one wins on your data?
Public benchmarks are a starting point. Run GPT-5 nano and Qwen3.5-Plus on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.