How much does DeepSeek V3.1 cost per token?

DeepSeek V3.1 is priced at $0.25 per million input tokens and $0.95 per million output tokens, per OpenRouter as of Aug 18, 2026.

What is DeepSeek V3.1's context window?

DeepSeek V3.1 supports a context window of up to 163.8K tokens, per DeepSeek.

What are the alternatives to DeepSeek V3.1?

By OpenRouter usage, comparable models include DeepSeek V4 Flash, Hy3, and Nemotron 3 Ultra. Side-by-side comparisons are linked in the alternatives table.

ModelsDeepSeek

DeepSeek V3.1

Name: DeepSeek V3.1
Author: DeepSeek

openrouter hugging face price docs

Context

163.8K

tokens

Released

Aug 21, 2025

on OpenRouter

Pricing

Price per million tokens

Input $/MTok

$0.2519%

OpenRouter · Aug 18, 2026

Output $/MTok

$0.9520.3%

OpenRouter · Aug 18, 2026

Cache read $/MTok

$0.13

OpenRouter

Current DeepSeek V3.1 prices per million tokens across tracked sources.
Source	Tracked slug	In $/MTok	Out $/MTok	Cache read	Cache write	Context	Effective	Last Δ (in)
OpenRouter	deepseek/deepseek-chat-v3.1	$0.25	$0.95	$0.13	—	163.8K	Aug 18, 2026	19%
models.dev	siliconflow/deepseek-ai/DeepSeek-V3.1	$0.27	$1.00	—	—	164K	Aug 18, 2026	55%

latest tracked price per source · Δ = most recent input-price move within that source

2 sources tracking

Input $/MTok

Output $/MTok

per-source step lines · $/MTok

history since Jul 8, 2026

Specs

Context & availability

DeepSeek V3.1 specifications.
Provider	DeepSeek
Context window	163.8K tokens
Listed on OpenRouter	Aug 21, 2025
Tracked price sources	OpenRouter · models.dev
Hugging Face	deepseek-ai/DeepSeek-V3.1
OpenRouter slugs	deepseek/deepseek-chat-v3.1

source: OpenRouter model catalog + tracked price feeds

id: deepseek-v3-1

Usage

Share of OpenRouter tokens

90-day daily

usage share pending — this model isn't in the tracked OpenRouter model rankings yet

Benchmarks

Benchmark results

Benchmark scores for DeepSeek V3.1.
Benchmark	Configuration	Score	Date	Source
no benchmark results attributed to DeepSeek V3.1 yet

scores as published by each benchmark; configurations differ — compare within a row's benchmark only

Alternatives

Similar models

Alternatives to DeepSeek V3.1 by OpenRouter usage-rank proximity.
#	Model	Tokens/day	7d Δ	Head-to-head
1	DeepSeek V4 FlashDeepSeek	2.7T	23.9%	vs DeepSeek V3.1
2	Hy3Tencent	1.3T	17.8%	vs DeepSeek V3.1
5	Nemotron 3 UltraNVIDIA	733B	45.1%	vs DeepSeek V3.1
7	GLM 5.2Z.ai	533B	4.2%	vs DeepSeek V3.1

ranked by OpenRouter usage-rank proximity

snapshot Aug 20, 2026

FAQ

DeepSeek V3.1 FAQ

How much does DeepSeek V3.1 cost per token?: DeepSeek V3.1 is priced at $0.25 per million input tokens and $0.95 per million output tokens, per OpenRouter as of Aug 18, 2026.
What is DeepSeek V3.1's context window?: DeepSeek V3.1 supports a context window of up to 163.8K tokens, per DeepSeek.
What are the alternatives to DeepSeek V3.1?: By OpenRouter usage, comparable models include DeepSeek V4 Flash, Hy3, and Nemotron 3 Ultra. Side-by-side comparisons are linked in the alternatives table.

Alerts

Track DeepSeek V3.1

Email me when DeepSeek V3.1's price moves or it gets deprecated.