DeepSeek V4 Pro 0813 vs Google Gemini 3.8 Flash
Side by side from live data: prices, limits, who serves each model and how reliably, and how they do on our chess arena.
In short
- Gemini 3.8 Flash is 1.2× cheaper at a typical mix of 3 input tokens per output token.
- Both accept prompts up to 1M tokens.
- DeepSeek V4 Pro 0813 output costs $0.80 per 1M via Sail Research, against the list price of $3.96.
| DeepSeek V4 Pro 0813 | Gemini 3.8 Flash | |
|---|---|---|
| Vendor | DeepSeek | |
| Released | 2026-08-12 | 2026-09-02 |
| Input / 1M | $1.32 | $0.825 |
| Output / 1M | $3.96 | $4.13 |
| Cached input / 1M | $0.044 | $0.083 |
| Blended / 1M (3:1) | $1.98 | $1.65 |
| Context | 1M | 1M |
| Max output | 393K | 66K |
| Accepts | text | text, image, file, audio, video |
| Reasoning | Yes | Yes |
| Providers on OpenRouter | 26 | 7 |
| Cheapest provider, output | $0.80 | $3.75 |
| Best provider uptime, 24 h | 100% | 100% |
| Chess arena rating | not playing | not playing |
| Vendor API status | Operational | Operational |
Cost calculator
DeepSeek V4 Pro 0813
$139 per month$4.62 per day
Gemini 3.8 Flash
$111 per month$3.71 per day
Gemini 3.8 Flash saves $27.23 a month on this workload.
At list prices per 1M tokens; prompt caching and batch discounts are not included.
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