Gemini 2.5 Flash vs DeepSeek V4 Pro
A direct API-pricing comparison between Gemini 2.5 Flash and DeepSeek V4 Pro. Below: every cost dimension side by side, then the bottom line for a typical workload.
Bottom line
For a typical 5K-in / 1K-out request, Gemini 2.5 Flash is the cheaper choice at $0.0040 per call — 3.0× less than DeepSeek V4 Pro at $0.012.
| Gemini 2.5 FlashGoogle | DeepSeek V4 ProDeepSeek | |
|---|---|---|
| Input / 1M tokens | $0.300 | $1.74 |
| Output / 1M tokens | $2.50 | $3.48 |
| Cached input / 1M | $0.075 | — |
| Context window | 1M | 128K |
| Provider | DeepSeek |
Green = cheaper on that line. Prices are estimates from public pricing pages; verify against Google and DeepSeek before relying on them.
Which is cheaper, Gemini 2.5 Flash or DeepSeek V4 Pro?
On output tokens — usually the dominant cost — Gemini 2.5 Flash charges $2.50 per million versus $3.48 for DeepSeek V4 Pro. The right pick depends on your input/output ratio and how much you can serve from cache. Use the calculator to model your exact traffic.