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DeepSeek: DeepSeek V3.1

DeepSeek
deepseek/deepseek-chat-v3.1

About this model

DeepSeek-V3.1 is a large hybrid reasoning model (671B parameters, 37B active) that supports both thinking and non-thinking modes via prompt templates. It extends the DeepSeek-V3 base with a two-phase long-context...

Make a request

OpenAI-compatible: set the base URL and your Promptix API key, keep your existing SDK.

curl https://promptix.tn/api/v1/chat/completions \  -H "Authorization: Bearer $PROMPTIX_API_KEY" \  -H "Content-Type: application/json" \  -d '{    "model": "deepseek/deepseek-chat-v3.1",    "messages": [      {"role": "user", "content": "Hello! What can you do?"}    ]  }'

Pricing

In TND per 1M tokens. VAT and the platform fee are added at top-up.

Input tokens

0.831 TND

per 1M tokens

Output tokens

3.156 TND

per 1M tokens

1,000 requests with 1K input and 500 output tokens cost about 2.409 TND.

Specifications

Provider
DeepSeek
Context window
163,840 tokens
Input modality
Text
Added
Aug 21, 2025
Supported parameters
frequency_penaltyinclude_reasoninglogit_biaslogprobsmax_tokensmin_ppresence_penaltyreasoning