DeepSeek V3.1 Terminus
DeepSeek · Open weights · 164K context · released Sep 22, 2025 · checked 6h ago
Ways to buy 4
| Way to buy | Input | Output | In / out per 1M | Cached | Vs cheapest |
|---|---|---|---|---|---|
 Novita AIfp8 · cached $0.135 | $0.27 | $1 | $0.27 / $1Cheapest | $0.135 | Cheapest |
 SiliconFlowfp8 | $0.27 | $1 | $0.27 / $1Cheapest | n/a | Cheapest |
| AtlasCloud fp8 · cached $0.13 | $0.3 | $0.95 | $0.3 / $0.95+2% vs cheapest | $0.13 | +2% vs cheapest |
| StreamLake Default region | $0.343 | $1.03 | $0.343 / $1.03+14% vs cheapest | n/a | +14% vs cheapest |
USD per 1M tokens. Regions are separate routes.
Through a gateway
Your own numbers100M input and 20M output tokens a month: $47.00 direct.
Helicone$47.00+0%
Kong AI Gateway$47.00+0%
LiteLLM$47.00+0%
Vercel AI Gateway$47.00+0%
Cloudflare AI Gateway$49.35+5%
Requesty$49.35+5%
Eden AI$49.59+5.5%
OpenRouter$49.59+5.5%
No published token fee: Martian Gateway, Portkey, TrueFoundry AI Gateway.
Related models
| In / out per 1M | Cheapest route | ||||||
|---|---|---|---|---|---|---|---|
| DeepSeek V4.1 Flash DeepSeek · 1MCheapest: $0.131 on Morph | $0.15 | $0.6 | $0.15 / $0.6 | $0.262 | 1M | $0.131 on Morph | · |
| DeepSeek V4 Flash Vision Exp DeepSeek · 1M | $0.216 | $0.647 | $0.216 / $0.647 | $0.323 | 1M | on DeepInfra (fp8) | · |
| DeepSeek V4 Pro 0813 DeepSeek · 1MCheapest: $0.525 on Baidu (fp8) | $0.66 | $1.98 | $0.66 / $1.98 | $0.99 | 1M | $0.525 on Baidu (fp8) | · |
| DeepSeek V4 Flash 0731 DeepSeek · 1.31M | $0.053 | $0.158 | $0.053 / $0.158 | $0.079 | 1.31M | on StreamLake (fp8) | · |
 GLM 5.3Z.ai · 1.31M | $0.561 | $1.76 | $0.561 / $1.76 | $0.862 | 1.31M | on Baidu (fp8) | · |
| GLM 4.6 Z.ai · 205K | $0.43 | $1.75 | $0.43 / $1.75 | $0.76 | 205K | on Venice (fp4) | · |
 Kimi K2.5Moonshot AI · 262K | $0.45 | $2.25 | $0.45 / $2.25 | $0.9 | 262K | on SiliconFlow (int4) | · |
 Gemini 3.1 Flash LiteGoogle · 1MCheapest: $0.281 on Google Vertex AI (global-flex) | $0.25 | $1.5 | $0.25 / $1.5 | $0.563 | 1M | $0.281 on Google Vertex AI (global-flex) | · |
About DeepSeek V3.1 Terminus
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
Takes text in and returns text. First listed Sep 23, 2026. Up to 33K output tokens. Blended price $0.453 per 1M tokens at 3 input to 1 output. Model id deepseek-v3-1-terminus.
Price history
No list-price history: this model is sold by hosts rather than its lab.
Across fru.devCompany profile
Questions
How much does DeepSeek V3.1 Terminus cost?
$0.27 per million input tokens and $1 per million output tokens.
What is the context window of DeepSeek V3.1 Terminus?
164K tokens, with up to 33K tokens of output.
Where is DeepSeek V3.1 Terminus cheapest?
Of 4 routes tracked, Novita AI is cheapest at $0.27 input and $1 output per million tokens.
Sources: OpenRouter's public model catalog and each provider's own pricing page, read every morning at 05:00 UTC; gateway fees re-read every Monday. List prices: your contract may differ. Logos via logo.dev; trademarks belong to their owners.