Models/deepseek

deepseek-chat-v3.1· Released Aug 21, 2025

Name: deepseek-chat-v3.1
Brand: deepseek

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. It extends the DeepSeek-V3 base with a two-phase long-context...

Input

From$0.5166/M

Output

From$1.5489/M

Context

Up to 164K

Max output

Up to 33K

Modalities

TextText

Input and output show the lowest price across upstreams, for reference. Your actual prices are listed per upstream below.

Upstreams & pricing

Upstream	Context	Max output	Input $/1M	Output $/1M	Cached input $/1M
Zenlayer AI Gateway-openai_compat (Global)From price	164K	33K	$0.5166	$1.5489	$0.5166

Routed in real time — you pay the listed price of whichever upstream serves your call.

How to call

curlrequest.sh

curl https://api.tkex.ai/v1/chat/completions \
  -H "Authorization: Bearer $TX_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "deepseek/deepseek-chat-v3.1",
    "messages": [
      {"role": "user", "content": "Say hello in five words."}
    ]
  }'