DeepSeek V4 Pro vs Gemini 3.8 Flash
Price and specs side by side · USD per 1M tokens · verified 2026-10-23
// side by side
| metric | DeepSeek V4 Pro | Gemini 3.8 Flash |
|---|---|---|
| input / 1M | $1.30 | $0.75 |
| output / 1M | $2.60 | $3.75 |
| blended (3:1) | $1.625 | $1.50 |
| cache read / 1M | $0.10 | $0.075 |
| context | 1.05M | 1.05M |
| max output | 16.4K | 65.5K |
| input types | text | text · image · video · audio · pdf |
| reasoning | yes | yes |
| tool calling | yes | yes |
| structured output | yes | yes |
| open weights | yes | no |
| released | 2026-04-24 | 2026-09-02 |
| knowledge cutoff | 2025-05 | n/a |
| lab | DeepSeek |
// monthly cost scenarios
| workload | tokens in / out | DeepSeek V4 Pro | Gemini 3.8 Flash |
|---|---|---|---|
| Chatbot | 10M / 2M | $18.20 | $15.00 |
| RAG app | 50M / 5M | $78.00 | $56.25 |
| Coding agent | 20M / 10M | $52.00 | $52.50 |
// verdict
- Gemini 3.8 Flash is 7.7% cheaper than DeepSeek V4 Pro on a blended 3:1 input/output basis.
- Only Gemini 3.8 Flash accepts image input.
- Chatbot (10M input / 2M output tokens per month): Gemini 3.8 Flash costs $15.00 vs $18.20 for DeepSeek V4 Pro, saving $3.20 per month.
- RAG app (50M input / 5M output tokens per month): Gemini 3.8 Flash costs $56.25 vs $78.00 for DeepSeek V4 Pro, saving $21.75 per month.
- Coding agent (20M input / 10M output tokens per month): DeepSeek V4 Pro costs $52.00 vs $52.50 for Gemini 3.8 Flash, saving $0.50 per month.
// DeepSeek V4 Pro or Gemini 3.8 Flash: which one to choose
- Choose Gemini 3.8 Flash for cost-sensitive, high-volume workloads.
- Choose Gemini 3.8 Flash if you need image input.
- Choose DeepSeek V4 Pro if you want open weights you can self-host.