DeepSeek: DeepSeek V3.1

Name: DeepSeek: DeepSeek V3.1
Author: OpenRouter

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

Context

164K

Max output

147K

Input price

$0.25/1M tokens

Output price

$0.95/1M tokens

Capabilities

Show unsupported (4)

Reasoning & Interaction

Reasoning

Tool Calling

Output Control

Structured Output

JSON Mode

Details

Model IDdeepseek/deepseek-chat-v3.1

ProviderOpenRouter

CreatorDeepSeek

Familydeepseek-chat

License—

Status—

Typechat

Input modalitiestext

Output modalitiestext

Open weight—

Parameters—

Architecture—

Context window164K tokens

Max input—

Max output147K tokens

Reasoning tokens—

Knowledge cutoff—

Release date2025-08-21

Sourceofficial

Tools

Function Callingfunction_calling

Call external functions and APIs

Pricing

Input

$0.25

Output

$0.95

Cache write

—

Cache read

$0.13

Batch in

—

Batch out

—

Family Comparison: deepseek-chat

Model	Caps	Perf	Speed	Context	Max out	Pricing
DeepSeek: DeepSeek V3.1	RTJJM	—	—	164K	147K	$0.25$0.95
DeepSeek: DeepSeek V3	TJJMSF	—	—	164K	16K	$0.26$1.03
DeepSeek: DeepSeek V3 0324	RTJJM	—	—	164K	115K	$0.29$1.14

API

GET/v1/models/openrouter/deepseek/deepseek-chat-v3.1