DeepSeek V4 Flash 0731 Fast vs Kimi K3
deepseek/deepseek-v4-flash-0731-fast · moonshotai/kimi-k3
As of November 4, 2026, Kimi K3 is the cheaper API on UberLLM: $0.0017 per million input tokens and $0.0781 per million output, versus $0.2660 / $0.5320 for DeepSeek V4 Flash 0731 Fast, about 87% 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 Kimi K3 to cut cost; choose DeepSeek V4 Flash 0731 Fast when its capabilities fit your task better.
DeepSeek V4 Flash 0731 Fast vs Kimi K3, side by side
| Spec | DeepSeek V4 Flash 0731 Fast | Kimi K3 |
|---|---|---|
| Price · input / 1M | $0.2660 | $0.0017 |
| Price · output / 1M | $0.5320 | $0.0781 |
| Context length | 1,000,000 | 1,000,000 |
| Max output tokens | 32,768 | 131,072 |
| Input modalities | text | text, image |
| Output modalities | text | text |
| Tools / functions | Yes | Yes |
| Vision (image input) | — | Yes |
| Reasoning | Yes | Yes |
| % off list | 24% off | 99.3% off |
| First token, median (7 days) | 2.5 s (469 requests) | 3.3 s (1,192 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 Kimi K3 — FAQ
Is DeepSeek V4 Flash 0731 Fast or Kimi K3 cheaper?
Kimi K3 is cheaper on a blended token mix, by about 87%. 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 Kimi K3?
DeepSeek V4 Flash 0731 Fast: $0.2660 in / $0.5320 out per 1M tokens. Kimi K3: $0.0017 in / $0.0781 out per 1M tokens. That's roughly a 87% blended difference. Prices are live; UberLLM adds no fee.
Can I use both DeepSeek V4 Flash 0731 Fast and Kimi K3 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.