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DeepSeek: DeepSeek V3.1 Terminus

deepseek/deepseek-v3-1-terminus
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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

Modalities
In / out per 1M$0.27 / $1.00
Context160K
ReleasedSep 22, 2025

Providers

2 providers serve this model upstream.

Providers serving this model
ProviderInput /MOutput /MCache read /MLatency P50Throughput P50Uptime
StreamLake$0.34$1.03Variable1.50s41 tps100%
SiliconFlowfp8$0.27$1.00Variable2.10s20 tps99.75%

Market-wide measurements, refreshed every 15 minutes. They describe who serves DeepSeek V3.1 Terminus in general, not how ProjectCOZY routes your requests.

Pricing

List rates per 1M tokens — what DeepSeek V3.1 Terminus costs pay-as-you-go elsewhere, not what you pay here.

Input
$0.27
per 1M tokens
Output
$1.00
per 1M tokens
Cache read
—
not published
Included in every pass
DeepSeek V3.1 Terminus is included in every ProjectCOZY pass at no extra cost — one flat rate, no per-token metering. The rates above are there for comparison.

Performance

Time to first token and output speed across every provider, over the last 3 days.

0.0s2.0s4.0s6.0s8.0s
Oct 16, 12 AMOct 16, 8 AMOct 16, 4 PMOct 17, 12 AMOct 17, 8 AMOct 17, 4 PMOct 18, 12 AMOct 18, 8 AMOct 18, 4 PMOct 19, 12 AMOct 19, 8 AM
SiliconFlow StreamLake
0 tok/s20 tok/s40 tok/s60 tok/s80 tok/s
Oct 16, 12 AMOct 16, 8 AMOct 16, 4 PMOct 17, 12 AMOct 17, 8 AMOct 17, 4 PMOct 18, 12 AMOct 18, 8 AMOct 18, 4 PMOct 19, 12 AMOct 19, 8 AM
SiliconFlow StreamLake

Uptime

100% of requests were served successfully over the last 3 days, across all providers.

Last 3 daysAvailability 99.34%
Oct 16, 11:00 AMNow
Availability over the last 24 hoursAvailability 99.37%
100% 97% 93% 90%
Oct 18, 11:00 AMNow

Apps

Tools that most often run DeepSeek V3.1 Terminus, by tokens this week.

Janitor AIRoleplay · 55.5% of tokens6.5BChub AIRoleplay · 27% of tokens3.2BSillyTavernRoleplay · 9.4% of tokens1.1BHermes AgentPersonal Agent · 5.8% of tokens681.9MSophia's LoreBaryRoleplay · 2.3% of tokens267.1M

Activity

27.8B tokens processed market-wide in the last month.

0500.0M1.0B1.5B2.0B
Sep 19Sep 24Sep 29Oct 4Oct 9Oct 14Oct 19
Tokens

FAQ

Which model id do I use for DeepSeek V3.1 Terminus?
deepseek/deepseek-v3.1-terminus. Send it as the model field from any OpenAI-compatible client, against http://192.168.1.55/v1.
How much context does DeepSeek V3.1 Terminus hold?
163,840 tokens per request, of which up to 147,456 can be the response.
What can it accept and return?
Input: text. Output: text.
What does DeepSeek V3.1 Terminus cost on a pass?
Nothing beyond the pass itself. Pay-as-you-go elsewhere it lists at $0.27 per 1M input tokens and $1.00 per 1M output tokens.
How current is its knowledge?
Training data runs to Mar 2025. Anything later has to come from your prompt or a tool call.
Who built DeepSeek V3.1 Terminus?
DeepSeek, in the DeepSeek family.

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