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DeepSeek V3.1

DeepSeek · released August 2025

DeepSeek V3.1 is a DeepSeek model with a 164K token context window — about 230 pages of text. It reads Text and replies in Text. It can show its reasoning before it answers.

$0.287

input / 1M tokens

$1.09

output / 1M tokens

164K

context — about 230 pages

0.23¢

a client proposal

Pricing

Input
$0.287 per million tokens
Output
$1.09 per million tokens
Cached input
$0.149 per million tokens

Billed from your Alyph wallet. Prices can change when the provider changes theirs — last checked August 9, 2026.

The numbers

Provider
DeepSeek
Released
August 2025 (2025-08-21)
Context window
164K tokens — about 230 pages
Max output
33K tokens per reply
Input
Text
Output
Text
Reasoning
Shows its thinking before answering
Knowledge cutoff
2025-03-31

Cost vs Token Amount

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80% Input20% Output
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DeepSeek V3.1

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What a task costs

2K tokens in · 500 tokens out.

DeepSeek V3.1

DeepSeek

0.11¢

for this task

51% input · 49% output

Full pricing →

Your $5 welcome credit covers about 4,459 of these.

Compare DeepSeek V3.1

Closest in price on a typical task:

DeepSeek V3.1 vs GPT-5.4 Nano →DeepSeek V3.1 vs Nex-N2-Pro →DeepSeek V3.1 vs Perceptron Mk1 →DeepSeek V3.1 vs MiniMax M2 →Any other combination →

Questions, answered

How much does DeepSeek V3.1 cost on Alyph?

DeepSeek V3.1 costs $0.287 per million input tokens and $1.09 per million output tokens on Alyph. A typical task — 5K tokens in, 800 out — works out to about 0.23¢. Billed from your Alyph wallet, with hard spending limits. Prices can change when the provider changes theirs; this page was last checked on August 9, 2026.

What is DeepSeek V3.1's context window?

164K tokens — about 230 pages. Replies can be up to 33K tokens long.

Can DeepSeek V3.1 read images and files?

DeepSeek V3.1 is text-only. The canvas still serializes uploads into plain text, so you can work with files — but it cannot see images.

Does DeepSeek V3.1 show its reasoning?

Yes. DeepSeek V3.1 can expose its thinking before the final answer, so you can watch how it got there.

Test DeepSeek V3.1 against GPT-5.4 Nano

One prompt, both models at the same time, the better answer wins. Free to start, with $5 of credit.

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