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DeepSeek V4.1 Flash (Reasoning, Max Effort)

DeepSeek · Released 2026-09-10 · Independent benchmark scores from Artificial Analysis

Intelligence Index
39.5
Output speed
267.1
tokens/sec
Blended price
$0.53
per 1M tokens
Time to first token
0.90s

Model metadata

Model IDdbe7c625-3100-4463-b479-a228c41f75dd
Slugdeepseek-v4-1-flash
Release date2026-09-10
ProviderDeepSeek
Provider slugdeepseek
Output speed267.1 tok/s
Time to first token0.90s
Time to first answer8.38s
Blended price ($/1M)$0.53
Input price ($/1M)$0.30
Output price ($/1M)$1.20

All evaluation scores (17)

aime
aime 25
artificial analysis coding index
artificial analysis intelligence index39.50
artificial analysis math index
gpqa
hle39.2%
ifbench
lcr84.0%
livecodebench
math 500
mmlu pro
scicode51.9%
tau banking
tau2
terminalbench hard
terminalbench v2 1

Source: artificialanalysis.ai/models/deepseek-v4-1-flash

Benchmark data from Artificial Analysis.