DeepSeek: DeepSeek V3.1 Terminus
DeepSeekDeepSeek-V3.1 Terminus is an update to [DeepSeek V3.1](/deepseek/deepseek-chat-v3.1) that maintains the model's original
High value
Text
Specifications
| Vendor | DeepSeek |
| Family | deepseek |
| Context | 163.8K · 122.9k words（≈ a thesis） |
| Max output | 163.8K · 122.9k words（≈ a thesis） |
| Released | 2026-06-19 |
| Open source | No |
| Tool use | — |
Pricing across channels
per 1M tokens, USD
| Channel | Type | Input | Output | → |
|---|---|---|---|---|
| OpenRouter (auto) | Aggregator | $0.27 | $0.95 | visitAd |
OpenRouter API (auto-fetched)· 2026-06-19
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