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DeepSeek V3.1 Terminus

deepseekdeepseek/deepseek-v3.1-terminus

DeepSeek V3.1 Terminus — refined variant of V3.1 optimized for tool calling and structured generation tasks.

Context Length
131K
Max Output
33K
Input Price
$0.480/ 1M tokens
Output Price
$1.74/ 1M tokens

Modalities

text→text

Pricing Breakdown

TypeRate
Input$0.480 / 1M tokens
Output$1.74 / 1M tokens

Supported Parameters

temperaturemax_tokenstop_ptoolstool_choiceresponse_formatstop

API Usage Examples

China users: replace api.therouter.ai with api.therouter.com.cn in the examples below for lower latency.

cURL
curl https://api.therouter.ai/v1/chat/completions   -H "Content-Type: application/json"   -H "Authorization: Bearer $THE_ROUTER_API_KEY"   -d '{
    "model": "deepseek/deepseek-v3.1-terminus",
    "messages": [
      {"role": "user", "content": "Summarize the key points from this input."}
    ]
  }'