DeepSeek: DeepSeek V3.1

deepseek/deepseek-chat-v3-1

DeepSeek-V3.1 is a large hybrid reasoning model (671B parameters, 37B active) that supports both thinking and non-thinking modes via prompt templates.

Modalities
In / out per 1M$0.25 / $0.95
Context160K
ReleasedAug 21, 2025

Providers

5 providers serve this model upstream.

Providers serving this model
ProviderInput /MOutput /MCache read /MLatency P50Throughput P50Uptime
CoreWeavefp8$0.55$1.65$0.550.23s77 tps100%
DeepInfraus ยท fp4$0.25$0.95$0.131.05s9 tps99.92%
MARA$0.60$1.70Variable0.97s116 tps96.41%
SambaNovafp8$0.65$1.50Variable2.96s60 tps94.97%
SiliconFlowfp8$0.27$1.00Variable1.91s15 tps92.56%

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

Pricing

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

Input
$0.25
per 1M tokens
Output
$0.95
per 1M tokens
Cache read
$0.13
per 1M cached tokens
Included in every pass
DeepSeek V3.1 is included in every ProjectCOZY pass at no extra cost โ€” 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.

0.0s5.0s10.0s15.0s20.0s
Oct 11, 12 AMOct 11, 8 AMOct 11, 4 PMOct 12, 12 AMOct 12, 8 AMOct 12, 4 PMOct 13, 12 AMOct 13, 8 AMOct 13, 4 PMOct 14, 12 AMOct 14, 8 AM
MARA SiliconFlow DeepInfra (us) CoreWeave SambaNova
0 tok/s100 tok/s200 tok/s300 tok/s400 tok/s
Oct 11, 12 AMOct 11, 8 AMOct 11, 4 PMOct 12, 12 AMOct 12, 8 AMOct 12, 4 PMOct 13, 12 AMOct 13, 8 AMOct 13, 4 PMOct 14, 12 AMOct 14, 8 AM
MARA SiliconFlow DeepInfra (us) CoreWeave SambaNova

Uptime

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

Last 3 daysAvailability 99.86%
Oct 11, 2:00 PMNow
Availability over the last 24 hoursAvailability 99.77%
100% 98% 97% 95%
Oct 13, 2:40 PMNow

Apps

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

Activity

220.1B tokens processed market-wide in the last month.

02.5B5.0B7.5B10.0B
Sep 14Sep 19Sep 24Sep 29Oct 4Oct 9Oct 14
Tokens

FAQ

Which model id do I use for DeepSeek V3.1?
deepseek/deepseek-chat-v3.1. 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 hold?
163,840 tokens per request, of which up to 32,768 can be the response.
What can it accept and return?
Input: text. Output: text.
What does DeepSeek V3.1 cost on a pass?
Nothing beyond the pass itself. Pay-as-you-go elsewhere it lists at $0.25 per 1M input tokens and $0.95 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?
DeepSeek, in the DeepSeek family.

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