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. Your use is subject to DeepSeek's Terms & Privacy Policies.
Implicit CachingReasoningTool Use
import { streamText } from 'ai'
const result = streamText({ model: 'deepseek/deepseek-v3.1', prompt: 'Why is the sky blue?'})Copy link to headingMore models by DeepSeek
| Model |
|---|
| 1M | 1.6s | 120tps | $0.22/M | $0.66/M | Read:$0.007/M Write:— | — | +1 |  | 08/21/2026 | ||||
| 1M | 0.5s | 184tps | $0.60/M | $1.90/M | Read:$0.02/M Write:— | — |    +8 | 08/12/2026 | |||||
| 1M | 0.5s | 326tps | $0.08/M | $0.15/M | Read:$0.007/M Write:— | — | +13 | 07/31/2026 | |||||
| 1M | 0.9s | 469tps | $0.09/M | $0.18/M | Read:$0.007/M Write:— | — |  +7 | 04/23/2026 | |||||
| 1M | 0.4s | 158tps | $0.66/M | $1.98/M | Read:$0.02/M Write:— | — | +5 | 04/23/2026 | |||||
| 164K | 0.5s | 94tps | $0.28/M | $0.42/M | Read:$0.03/M Write:— | — |  +1 | 12/01/2025 |