Compare / head-to-head
Qwen3.5-FlashvsQwen3.6-Flash
Qwen3.6-Flash leads 2 of 4 shared benchmarks. Qwen3.5-Flash is 3.7x cheaper per token. Both offer a 1M-token context window.
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
1 – 2
Qwen3.6-Flash leads · 1 tied
Cheaper per token
Qwen3.5-Flash
3.7x cheaper, input + output
Larger context
Tie
both 1M tokens
Provider uptime (30d)
—
Qwen
Qwen3.5-Flash
Qwen · released 2026-02-23
textvision
Qwen3.6-Flash
Qwen · released 2026-04-16
textvision
Quality
Benchmark matrix
4 shared · 1 only Qwen3.5-Flash · 0 only Qwen3.6-Flash| Benchmark | Qwen3.5-Flash | Qwen3.6-Flash | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 4 | ||||
| GPQA Diamond | 82.3% ↗epoch | 83.3% ↗epoch | -1 pt | Qwen3.6-Flash |
| FrontierMath Tiers 1-3 v2 (Epoch AI run) | 9.5% ↗epoch | 17.2% ↗epoch | -7.7 pt | Qwen3.6-Flash |
| OTIS Mock AIME 2024-2025 (Epoch AI run) | 84.4% ↗epoch | 84.4% ↗epoch | 0 | Tie |
| SimpleQA Verified | 20.3% ↗epoch | 15.9% ↗epoch | +4.4 pt | Qwen3.5-Flash |
| Only Qwen3.5-Flash reports · 1 | ||||
| LMArena Elo | 1397.7 ↗ | not reported | — | — |
| Only Qwen3.6-Flash reports · 0 | ||||
| Qwen3.6-Flash reports nothing Qwen3.5-Flash 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 Qwen3.5-Flash minus Qwen3.6-Flash 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 | Qwen3.5-Flash | Qwen3.6-Flash | Edge |
|---|---|---|---|
| Context window | 1M tokens | 1M tokens | Tie |
| Max output | — | — | — |
| Input price / 1M | $0.029 ↗ | $0.165 ↗ | Qwen3.5-Flash |
| Output price / 1M | $0.287 ↗ | $0.99 ↗ | Qwen3.5-Flash |
| Cached input / 1M | — | — | — |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $0.316 | $1.16 | Qwen3.5-Flash |
| Modalities | text · vision | text · vision | Tie |
| Released | 2026-02-23 | 2026-04-16 | — |
| Cited benchmark scores | 5 | 4 | — |
Reliability
Qwen status
Last 60 days · refreshed daily on this page · live on /statusMore matchups
Qwen3.5-Flash vs …
Models sharing the most benchmarksMore matchups
Qwen3.6-Flash vs …
Models sharing the most benchmarksBuilt by Respan
Which one wins on your data?
Public benchmarks are a starting point. Run Qwen3.5-Flash and Qwen3.6-Flash on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.