DeepSeek V3.1
DeepSeek V3.1 is DeepSeek's August 21, 2025 model update introducing hybrid inference with selectable thinking and non-thinking modes in one endpoint. It strengthens tool use and multi-step agent capabilities over DeepSeek-V3.
Implicit CachingReasoningTool Use
index.ts
import { streamText } from 'ai'
const result = streamText({ model: 'deepseek/deepseek-v3.1', prompt: 'Why is the sky blue?'})More models by DeepSeek
| Model |
|---|
| 1M | 1.1s | 137tps | $0.14/M | $0.28/M | Read:$0.0/M Write:— | — | — | +1 |    +2 | 04/23/2026 | |||
| 1M | 0.6s | 162tps | $1.74/M$0.43/M | $3.48/M$0.87/M | Read:$0.0/M Write:— | — | — | +1 |  +4 | 04/23/2026 | |||
| 164K | 0.7s | 88tps | $0.28/M | $0.42/M | Read:$0.03/M Write:— | — | — |  +1 | 12/01/2025 | ||||
| 164K | 0.9s | 53tps | $0.26/M | $0.38/M | Read:$0.13/M Write:— | — | — | +1 |  +1 | 12/01/2025 | |||
| 131K | 2.3s | 27tps | $0.27/M | $1.00/M | Read:$0.14/M Write:— | — | — | +1 |  | 09/22/2025 | |||
| 160K | 0.4s | 158tps | $1.35/M | $5.40/M | Read:$0.35/M Write:— | — | — | +1 | | 01/20/2025 |