DeepSeek V3.1 Think
LatestDeepSeek
•
Open Source•
840B# 38
Released
Aug 21, 2025
# 13
Context Length
128K
Benchmarks
# 53
Code RankedAGI
62.8%
# 16
SWEBench Multilingial
54.5%
# 38
SWEBench Verified
66.0%
# 61
Agentic RankedAGI
49.0%
# 23
Browse Comp
30.0%
# 5
LiveCodeBench v5
73.3%
# 11
Codeforces ELO
2091
# 7
Aider Polyglot
76.3%
# 43
Reason RankedAGI
63.3%
# 28
HLE
29.8%
# 46
GPQA Diamond
81.0%
# 26
Text Arena
1417
# 23
AIME 2025 I & II
87.5%
# 5
AIME 2024
93.1%
# 11
MMLU Pro
84.8%
# 1
MMLU
93.7%
# 23
Math RankedAGI
73.5%
# 52
RAGI RankedAGI
57.1%
# 40
GDPval AA
1007
# 22
Code DesignArena
1240
Pricing
# 22
Input Cost /M
$0.56
# 25
Output Cost /M
$1.68
# 10
Cached Cost /M
$0.07
Additional Details
Model ID
deepseek-reasoner
Last Updated
2 days ago