DeepSeek V4 Flash 0731 Fast vs DeepSeek V4.1 Flash 1017
deepseek/deepseek-v4-flash-0731-fast · deepseek/deepseek-v4.1-flash-1017
As of November 4, 2026, DeepSeek V4.1 Flash 1017 is the cheaper API on UberLLM: $0.0073 per million input tokens and $0.0294 per million output, versus $0.2660 / $0.5320 for DeepSeek V4 Flash 0731 Fast, about 95% 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 DeepSeek V4.1 Flash 1017 to cut cost; choose DeepSeek V4 Flash 0731 Fast when its capabilities fit your task better.
DeepSeek V4 Flash 0731 Fast vs DeepSeek V4.1 Flash 1017, side by side
| Spec | DeepSeek V4 Flash 0731 Fast | DeepSeek V4.1 Flash 1017 |
|---|---|---|
| Price · input / 1M | $0.2660 | $0.0073 |
| Price · output / 1M | $0.5320 | $0.0294 |
| Context length | 1,000,000 | 1,048,576 |
| Max output tokens | 32,768 | 393,216 |
| Input modalities | text | text, image |
| Output modalities | text | text |
| Tools / functions | Yes | Yes |
| Vision (image input) | — | Yes |
| Reasoning | Yes | Yes |
| % off list | 24% off | 97.6% off |
| First token, median (7 days) | 2.5 s (469 requests) | 3.6 s (52,433 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 DeepSeek V4.1 Flash 1017 — FAQ
Is DeepSeek V4 Flash 0731 Fast or DeepSeek V4.1 Flash 1017 cheaper?
DeepSeek V4.1 Flash 1017 is cheaper on a blended token mix, by about 95%. 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 DeepSeek V4.1 Flash 1017?
DeepSeek V4 Flash 0731 Fast: $0.2660 in / $0.5320 out per 1M tokens. DeepSeek V4.1 Flash 1017: $0.0073 in / $0.0294 out per 1M tokens. That's roughly a 95% blended difference. Prices are live; UberLLM adds no fee.
Can I use both DeepSeek V4 Flash 0731 Fast and DeepSeek V4.1 Flash 1017 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.