DeepSeek V4 Flash 0731 Fast vs Qwen 3.8 27B
deepseek/deepseek-v4-flash-0731-fast · qwen/qwen-3-8-27b
As of November 4, 2026, Qwen 3.8 27B is the cheaper API on UberLLM: $0.0002 per million input tokens and $0.0025 per million output, versus $0.2095 / $0.4189 for DeepSeek V4 Flash 0731 Fast, about 99% less when output is 3 tokens for every input token. These are the best prices on the market right now. Both work with one OpenAI-compatible key and UberLLM adds no fee. Choose Qwen 3.8 27B to cut cost; choose DeepSeek V4 Flash 0731 Fast when context size wins. DeepSeek V4 Flash 0731 Fast carries the larger context window (1,000,000 vs 262,144 tokens), which can matter for long-document work.
DeepSeek V4 Flash 0731 Fast vs Qwen 3.8 27B, side by side
| Spec | DeepSeek V4 Flash 0731 Fast | Qwen 3.8 27B |
|---|---|---|
| Price · input / 1M | $0.2095 | $0.0002 |
| Price · output / 1M | $0.4189 | $0.0025 |
| Context length | 1,000,000 | 262,144 |
| Max output tokens | 32,768 | 65,536 |
| Input modalities | text | text, image, video |
| Output modalities | text | text |
| Tools / functions | Yes | Yes |
| Vision (image input) | — | Yes |
| Reasoning | Yes | Yes |
| % off list | 40.2% off | 99.9% off |
| First token, median (7 days) | 1.5 s (1,443 requests) | — |
Best prices on UberLLM right now. No UberLLM fee on requests; adding credit by card costs 5.5% + $0.50. Updated November 4, 2026. A price more than 70% below list is what buyers were billed, not an error. Why so cheap?
DeepSeek V4 Flash 0731 Fast vs Qwen 3.8 27B — FAQ
Is DeepSeek V4 Flash 0731 Fast or Qwen 3.8 27B cheaper?
Qwen 3.8 27B is cheaper on a blended token mix, by about 99%. 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 0731 Fast and Qwen 3.8 27B?
DeepSeek V4 Flash 0731 Fast: $0.2095 in / $0.4189 out per 1M tokens. Qwen 3.8 27B: $0.0002 in / $0.0025 out per 1M tokens. That's roughly a 99% blended difference. Prices are live; UberLLM adds no fee.
Can I use both DeepSeek V4 Flash 0731 Fast and Qwen 3.8 27B 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.