DeepSeek V4.1 Flash 1017 vs Qwen3.5 Plus 2026-02-15
Price, context window & benchmark comparison
VS
Compare different models
Verdict: DeepSeek V4.1 Flash 1017 is 4.0× cheaper than Qwen3.5 Plus 2026-02-15 on a typical 3:1 input/output mix. DeepSeek V4.1 Flash 1017 has the larger context window (1M vs 1M).
| DeepSeek V4.1 Flash 1017 | Qwen3.5 Plus 2026-02-15 | |
|---|---|---|
| Input price / 1M | $0.098 | $0.26 |
| Output price / 1M | $0.29 | $1.56 |
| Blended price (3:1) | $0.15 | $0.58 |
| Cached input / 1M | $0.0029 | — |
| Context window | 1M | 1M |
| Max output | 393K | 66K |
| Intelligence index | 28.6 | — |
| Coding index | — | — |
| Providers | 47 | — |
| Best provider uptime (30m) | 100.0% | — |
| Vision input | Yes | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-10-17 | 2026-02-16 |
| Retirement | — | — |
Cost calculator
FAQ
Which is cheaper, DeepSeek V4.1 Flash 1017 or Qwen3.5 Plus 2026-02-15?
DeepSeek V4.1 Flash 1017 is 4.0× cheaper than Qwen3.5 Plus 2026-02-15 on a typical 3:1 input/output mix.
DeepSeek V4.1 Flash 1017 vs Qwen3.5 Plus 2026-02-15: which has a bigger context window?
DeepSeek V4.1 Flash 1017: 1,048,576 tokens. Qwen3.5 Plus 2026-02-15: 1,000,000 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: DeepSeek V4.1 Flash 1017 ≈ $343.00, Qwen3.5 Plus 2026-02-15 ≈ $1,300.
More comparisons
DeepSeek V4.1 Flash 1017 vs Gemini 4 CarbonDeepSeek V4.1 Flash 1017 vs Claude Fable 5.2DeepSeek V4.1 Flash 1017 vs Gemini Omni 1.2 FlashDeepSeek V4.1 Flash 1017 vs Gemini Omni 1.1 FlashDeepSeek V4.1 Flash 1017 vs Hy4DeepSeek V4.1 Flash 1017 vs GLM 5.3 FlashX LegalDeepSeek V4.1 Flash 1017 vs GPT-6.1 TerraDeepSeek V4.1 Flash 1017 vs GPT-6.1 Terra ProDeepSeek V4.1 Flash 1017 vs Kimi K3.1 ProDeepSeek V4.1 Flash 1017 vs MiniMax M3.1 FlashDeepSeek V4.1 Flash 1017 vs Nemotron 3.5 Super VLDeepSeek V4.1 Flash 1017 vs Gemini 4 ArgonDeepSeek V4.1 Flash 1017 vs Claude Haiku 5.5DeepSeek V4.1 Flash 1017 vs Nano Banana 2.1DeepSeek V4.1 Flash 1017 vs Mistral Large 4DeepSeek V4.1 Flash 1017 vs GPT-6.1 Sol ProQwen3.5 Plus 2026-02-15 vs Gemini 4 CarbonQwen3.5 Plus 2026-02-15 vs Claude Fable 5.2Qwen3.5 Plus 2026-02-15 vs Gemini Omni 1.2 FlashQwen3.5 Plus 2026-02-15 vs Gemini Omni 1.1 FlashQwen3.5 Plus 2026-02-15 vs Hy4Qwen3.5 Plus 2026-02-15 vs GLM 5.3 FlashX LegalQwen3.5 Plus 2026-02-15 vs GPT-6.1 TerraQwen3.5 Plus 2026-02-15 vs GPT-6.1 Terra Pro