DeepSeek V4 Pro vs Gemini 3.5 Flash
deepseek/deepseek-v4-pro · google/gemini-3.5-flash
As of October 31, 2026, Gemini 3.5 Flash is the cheaper API on UberLLM: $0.0615 per million input tokens and $0.3690 per million output, versus $0.3016 / $0.6032 for DeepSeek V4 Pro, about 45% 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 Gemini 3.5 Flash to cut cost; choose DeepSeek V4 Pro when its capabilities fit your task better.
DeepSeek V4 Pro vs Gemini 3.5 Flash, side by side
| Spec | DeepSeek V4 Pro | Gemini 3.5 Flash |
|---|---|---|
| Price · input / 1M | $0.3016 | $0.0615 |
| Price · output / 1M | $0.6032 | $0.3690 |
| Context length | 1,000,000 | 1,000,000 |
| Max output tokens | 128,000 | 65,536 |
| Input modalities | text | text, image |
| Output modalities | text | text |
| Tools / functions | Yes | Yes |
| Vision (image input) | — | Yes |
| Reasoning | Yes | — |
| % off list | 81% off | 96% off |
| First token, median (7 days) | 5.4 s (200 requests) | — |
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. A price more than 70% below list is what buyers were billed, not an error. Why so cheap?
DeepSeek V4 Pro vs Gemini 3.5 Flash — FAQ
Is DeepSeek V4 Pro or Gemini 3.5 Flash cheaper?
Gemini 3.5 Flash is cheaper on a blended token mix, by about 45%. 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 Pro and Gemini 3.5 Flash?
DeepSeek V4 Pro: $0.3016 in / $0.6032 out per 1M tokens. Gemini 3.5 Flash: $0.0615 in / $0.3690 out per 1M tokens. That's roughly a 45% blended difference. Prices are live; UberLLM adds no fee.
Can I use both DeepSeek V4 Pro and Gemini 3.5 Flash 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.