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DeepSeek V3.1 Terminus (Reasoning) — DeepSeek | FindLLM

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DeepSeek V3.1 Terminus (Reasoning)

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DeepSeek V3.1 Terminus (Reasoning)

DeepSeek·Released 2025-09-22

Open SourceMoE

Related Models

DeepSeek: DeepSeek V4 Pro2026-04-24 DeepSeek V4 Pro (Reasoning, High Effort)2026-04-24 DeepSeek: DeepSeek V4 Flash2026-04-24 DeepSeek V4 Flash (Reasoning, High Effort)2026-04-24 DeepSeek V4 Pro (Non-reasoning)2026-04-24 DeepSeek V4 Flash (Non-reasoning)2026-04-24 DeepSeek V3.2 (Reasoning)2025-12-01 DeepSeek: DeepSeek V3.22025-12-01

Pricing

Input

$1.64

per 1M tokens

Output

$2.75

per 1M tokens

Blended

$1.91

per 1M tokens

Cheaper than 26% of models. Median price is $0.56/1M tokens.

Cost Calculator

Tokens per day1M

100K100M

Daily

$1.91

Monthly

$57.42

vs. Similar Models

GPT-5.2 (Non-reasoning)Q:-0.3

$4.81+151%

inclusionAI: Ling-2.6-1TQ:-0.3

$0.85-56%

GLM-4.7 (Non-reasoning)Q:+0.3

$1.00-48%

Google: Gemini 3.1 Flash Lite PreviewQ:-0.4

$0.56-71%

Benchmarks

MMLU-Pro

85.1%

GPQA Diamond

79.2%

HLE

15.2%

LiveCodeBench

79.8%

SciCode

40.6%

TerminalBench Hard

30.3%

MATH-500Not evaluated

AIMENot evaluated

AIME 2025

89.7%

IFBench

57.0%

Long Context Recall

65.0%

Tau2

37.1%

Market AverageTop Score

Open Source

Quick Compare

Similar Models

Hy3-preview (Non-reasoning)

Tencent

GPT-5.2 (Non-reasoning)

OpenAI

Q: 33.6$4.81/1M

inclusionAI: Ling-2.6-1T

InclusionAI

Q: 33.6$0.85/1M262K ctx

GLM-4.7 (Non-reasoning)

Z AI

Q: 34.2$1.00/1M

Google: Gemini 3.1 Flash Lite Preview

Google

Q: 33.5$0.56/1M1.0M ctx

Cheaper: 71%Coding: -3.6

Doubao Seed Code

ByteDance

Compare all 7 models

Quality Index

33.9

114th of 507

Top 22%

Coding Index

33.7

94th of 417

Top 23%

Math Index

89.7

26th of 269

Top 11%

Price/1M

$1.91

474th cheapest

242% above median

Top 74%

Market Position

DeepSeek V3.1 Terminus (Reasoning)Market Average