Side-by-side technical and economic comparison between DeepSeek's DeepSeek-V4.1-Flash and Google's Gemini 3.8 Pro.
| Metric | DeepSeek-V4.1-Flash | Gemini 3.8 Pro | Advantage |
|---|---|---|---|
| Provider Organization | DeepSeek | — | |
| Standard Input / 1M | $0.30 | $4.00 | DeepSeek-V4.1-Flash (93% lower) |
| Cached Input / 1M | $0.006 | $0.40 | DeepSeek-V4.1-Flash lower |
| Output / 1M | $1.20 | $18.00 | DeepSeek-V4.1-Flash lower |
| Context Window | 1.05M | 1.05M | Equal |
| Max Generation Tokens | 384k | 64k | DeepSeek-V4.1-Flash |
| Tokenizer Family | DeepSeek Byte-Level BPE (100k vocabulary) | Google Gemini SentencePiece (256k vocabulary) | — |
Opt for DeepSeek-V4.1-Flash when your engineering requirements prioritize DeepSeek's ecosystem, specific tokenizer efficiencies (Calibrated DeepSeek Tokenizer (±3%)), or when your expected prompt-to-completion ratios favor its $0.3/M input rate.
Opt for Gemini 3.8 Pro when looking for Google's tooling integration, specific context window depth (1.05M tokens), or when output generation volume favors its $18/M rate.