DeepSeek V3.1 Terminus vs Gemini 3.5 Flash
DeepSeek vs Google — benchmarks, pricing, and capabilities side by side.
- •Gemini 3.5 Flash has the higher intelligence index (92.2 vs 83.5)
- •DeepSeek V3.1 Terminus is cheaper ($0.27 vs $1.50 per 1M input)
- •Gemini 3.5 Flash has a larger context window (1M)
| DeepSeek V3.1 Terminus | Gemini 3.5 Flash | |
|---|---|---|
| Intelligence index | 83.5 | 92.2 |
| Developer | DeepSeek | |
| Type | LLM | Multimodal |
| Access | Open weights | API only |
| Context window | 163,840 tokens | 1,048,576 tokens |
| Input price | $0.27 / 1M | $1.50 / 1M |
| Output price | $0.95 / 1M | $9.00 / 1M |
| Speed | — | 221 tok/s |
| Released | September 22, 2025 | May 19, 2026 |
| Parameters | — | — |
| Input modalities | Text | Text, Image, Audio, Video |
| Output modalities | Text | Text |
Shared benchmarks
DeepSeek V3.1 Terminus
Gemini 3.5 Flash
GPQA Diamond
79.2
92.2
Humanity’s Last Exam
15.2
41