DeepSeek V4 Flash vs Qwen3.5 Plus
deepseek/deepseek-v4-flash · qwen/qwen3.5-plus
As of October 31, 2026, Qwen3.5 Plus is the cheaper API on UberLLM: $0.0130 per million input tokens and $0.0780 per million output, versus $0.0414 / $0.0828 for DeepSeek V4 Flash, about 15% less when output is 3 tokens for every input token. These are the median prices buyers paid over the last 24 hours. Both work with one OpenAI-compatible key and UberLLM adds no fee. Choose Qwen3.5 Plus to cut cost; choose DeepSeek V4 Flash when its capabilities fit your task better.
DeepSeek V4 Flash vs Qwen3.5 Plus, side by side
| Spec | DeepSeek V4 Flash | Qwen3.5 Plus |
|---|---|---|
| Price · input / 1M | $0.0414 | $0.0130 |
| Price · output / 1M | $0.0828 | $0.0780 |
| Context length | 1,000,000 | 1,000,000 |
| Max output tokens | 128,000 | 65,536 |
| Input modalities | text | text |
| Output modalities | text | text |
| Tools / functions | Yes | Yes |
| Reasoning | Yes | — |
| % off list | 55% off | — |
Median prices buyers paid on UberLLM over the last 24 hours. No UberLLM fee on requests; adding credit by card costs 5.5% + $0.50. Updated October 31, 2026.
DeepSeek V4 Flash vs Qwen3.5 Plus — FAQ
Is DeepSeek V4 Flash or Qwen3.5 Plus cheaper?
Qwen3.5 Plus is cheaper on a blended token mix, by about 15%. A request costs what its provider charged, UberLLM adds no fee, and every request is listed with its cost in Activity.
What's the price difference between DeepSeek V4 Flash and Qwen3.5 Plus?
DeepSeek V4 Flash: $0.0414 in / $0.0828 out per 1M tokens. Qwen3.5 Plus: $0.0130 in / $0.0780 out per 1M tokens. That's roughly a 15% blended difference. Prices are live; UberLLM adds no fee.
Can I use both DeepSeek V4 Flash and Qwen3.5 Plus with one API?
Yes. Both are served through a single OpenAI-compatible endpoint — set the base URL to https://api.uberllm.dev/v1 and your UberLLM key, then switch between them by changing the model id. Anthropic SDKs work via https://api.uberllm.dev/v1/messages.