Compare / head-to-head
LongCat 2.0vsQwen3.5-Flash
LongCat 2.0 leads 1 of 1 shared benchmark. Both offer a 1M-token context window.
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
1 – 0
LongCat 2.0 leads
Cheaper per token
—
list price, input + output
Larger context
Tie
both 1M tokens
Provider uptime (30d)
— · —
Meituan LongCat · Qwen
LongCat 2.0
Meituan LongCat · released 2026-06-30
text
- Context
- 1M
- Max out
- —
- Input /1M
- —
- Output /1M
- —
- Cached /1M
- —
- Scores
- 10 · 4 core
Qwen3.5-Flash
Qwen · released 2026-02-23
textvision
Quality
Benchmark matrix
1 shared · 9 only LongCat 2.0 · 4 only Qwen3.5-Flash| Benchmark | LongCat 2.0 | Qwen3.5-Flash | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 1 | ||||
| GPQA Diamond | 88.9% ↗ | 82.3% ↗epoch | +6.6 pt | LongCat 2.0 |
| Only LongCat 2.0 reports · 9 | ||||
| BrowseComp | 79.9% ↗ | not reported | — | — |
| FORTE | 73.2% ↗ | not reported | — | — |
| IFEval | 90% ↗ | not reported | — | — |
| IMO-AnswerBench | 81.8% ↗ | not reported | — | — |
| RWSearch | 78.8% ↗ | not reported | — | — |
| SWE-bench Multilingual | 77.3% ↗ | not reported | — | — |
| SWE-bench Pro | 59.5% ↗ | not reported | — | — |
| Terminal-Bench 2.1 | 70.8% ↗ | not reported | — | — |
| Writing Bench | 83.8% ↗ | not reported | — | — |
| Only Qwen3.5-Flash reports · 4 | ||||
| LMArena Elo | not reported | 1397.7 ↗ | — | — |
| FrontierMath Tiers 1-3 v2 (Epoch AI run) | not reported | 9.5% ↗epoch | — | — |
| OTIS Mock AIME 2024-2025 (Epoch AI run) | not reported | 84.4% ↗epoch | — | — |
| SimpleQA Verified | not reported | 20.3% ↗epoch | — | — |
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 LongCat 2.0 minus Qwen3.5-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 | LongCat 2.0 | Qwen3.5-Flash | Edge |
|---|---|---|---|
| Context window | 1M tokens | 1M tokens | Tie |
| Max output | — | — | — |
| Input price / 1M | — | $0.029 ↗ | — |
| Output price / 1M | — | $0.287 ↗ | — |
| Cached input / 1M | — | — | — |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | — | $0.316 | — |
| Modalities | text | text · vision | Qwen3.5-Flash |
| Released | 2026-06-30 | 2026-02-23 | — |
| Cited benchmark scores | 10 | 5 | — |
Reliability
Provider status
Last 60 days · refreshed daily on this page · live on /statusMore matchups
LongCat 2.0 vs …
Models sharing the most benchmarksMore matchups
Qwen3.5-Flash vs …
Models sharing the most benchmarksBuilt by Respan
Which one wins on your data?
Public benchmarks are a starting point. Run LongCat 2.0 and Qwen3.5-Flash on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.