DeepSeek V3.1 Terminus
DeepSeek · Mid
DeepSeek-V3.1 Terminus is an update to [DeepSeek V3.1](/deepseek/deepseek-chat-v3.1) that maintains the model's original capabilities while addressing issues reported by users, including language consistency and agent capabilities, further optimizing the model's...
Input / 1M
$0.27
Output / 1M
$0.95
Cached input / 1M
$0.13
Context window
163K
Where it sits
114th-cheapest mid model
by blended $/Mtok among 262 listed mid models
23% below the mid median
blended $/Mtok across 262 mid models
Output costs 3.5× input
$0.27 in / $0.95 out per 1M
Cached input saves 52%
$0.13 vs $0.27 per 1M fresh
Held flat since launch (Jun 2026)
no blended price change recorded
Computed live from current prices and this model's history — not hand-written, so it stays accurate as prices move.
Price history
Only one price on record so far — the history chart appears once a price changes.
Snapshots
| Effective | Input | Output | Cached in | Note | Source |
|---|---|---|---|---|---|
| 11 Jun 2026 | $0.27 | $0.95 | $0.13 | Imported from OpenRouter | openrouter.ai |