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DeepSeek V3.1 Terminus
The slug is deepseek/deepseek-v3.1-terminus. Check the endpoint status before you assume every listed price can take traffic.
Updated 2026-09-27
On 27 Sep 2026 the endpoints list had four rows. Novita was in service at $0.27 input and $1.00 output per million tokens, with a 131,072-token context. SiliconFlow showed the same $0.27 / $1.00 and a 163,840 context, but not a healthy status. AtlasCloud ($0.30 / $0.95) and StreamLake ($0.343 / $1.028) were also marked down.
Terminus is a late V3.1 checkpoint. It is not V4, and it does not inherit V4’s million-token window. If the call returns no healthy provider, move to deepseek/deepseek-v4-flash rather than retrying the same id in a loop.
Questions
What is the DeepSeek V3.1 Terminus model id?
deepseek/deepseek-v3.1-terminus
How much does it cost?
The in-service Novita row on 27 Sep 2026 was $0.27 per million input tokens and $1.00 per million output tokens.
Why does the page list a price that will not run?
OpenRouter keeps the provider row and a status. A down provider is not a quote you can buy until the status recovers.
Related
- DeepSeek V3 0324
DeepSeek V3 0324 still had endpoints on 27 Sep 2026, around $0.24–$0.29 per million input tokens. It is an older chat slug, not V4.
- DeepSeek on OpenRouter
OpenRouter lists several DeepSeek slugs at once: V4 Pro, V4 Flash, older V3 chats, and R1 0528. The slug in your request picks the price.
- DeepSeek V4 Flash price
DeepSeek V4 Flash 0731 was $0.021 / $0.32 per million tokens on 27 Sep 2026. The 0423 slug was $0.047 / $0.094. Neither was the free router.
- DeepSeek R1 0528
DeepSeek R1 0528 was still routed on 27 Sep 2026 at about $0.50–$0.70 per million input tokens and $2.15–$2.50 output.