token.app › Compare › Qwen3.5-Flash vs Claude Opus 5
Qwen3.5-Flash vs Claude Opus 5
Claude Opus 5 leads on 3 of 3 shared benchmarks. Qwen3.5-Flash is 88× cheaper per token on a blended 3:1 basis.
Head to head
Blended price uses a 3:1 input:output mix
| Qwen3.5-Flash | Claude Opus 5 | |
|---|---|---|
| Provider | Alibaba | Anthropic |
| Input $/1M | $0.065 | $5.00 |
| Output $/1M | $0.260 | $25.00 |
| Blended $/1M | $0.114 | $10.00 |
| Context window | 1M | 1M |
| Max output | 66K | 128K |
| Released | Feb 2026 | Jul 2026 |
| Licence | Proprietary | Proprietary |
| GPQA Diamond | 82.3% | 93.9% |
| FrontierMath T1–3 | 18.2% | 85.6% |
| OTIS Mock AIME | 84.4% | 98.9% |
Benchmark scores independently run and published by Epoch AI, 'AI Benchmarking Hub', used under CC BY 4.0. Only benchmarks with a score for BOTH models are compared.
Choose Qwen3.5-Flash if…
- Costs less per token — $0.114 vs $10.00 blended
Choose Claude Opus 5 if…
- Higher GPQA Diamond (93.9% vs 82.3%)
- Higher FrontierMath T1–3 (85.6% vs 18.2%)
- Higher OTIS Mock AIME (98.9% vs 84.4%)
- Newer model (released Jul 2026)
FAQ
Which is better, Qwen3.5-Flash or Claude Opus 5?
Across the 3 benchmarks both models have independently-run scores for, Qwen3.5-Flash leads on 0 and Claude Opus 5 leads on 3. Benchmarks are one input — price and context window are on this page too.
Is Qwen3.5-Flash cheaper than Claude Opus 5?
Qwen3.5-Flash is cheaper: $0.114 versus $10.00 per million tokens blended at 3:1 input:output. Input alone: $0.065 vs $5.00. Output alone: $0.260 vs $25.00.
What context windows do Qwen3.5-Flash and Claude Opus 5 have?
Qwen3.5-Flash: 1,000,000 tokens. Claude Opus 5: 1,000,000 tokens.
Who makes Qwen3.5-Flash and Claude Opus 5?
Qwen3.5-Flash is made by Alibaba. Claude Opus 5 is made by Anthropic.