DeepSeek V4.1-Flash vs DeepSeek V4-Pro

Best cell per row highlighted. Null means undisclosed — never counted as zero.

DeepSeek
DeepSeek V4.1-FlashGA
8.6
AI Panel
DeepSeek
DeepSeek V4-ProGA
8.5
AI Panel

Identity & lifecycle

ProviderDeepSeekDeepSeek
Family / tierDeepSeek V4 · FlashDeepSeek V4 · Pro
StatusGAGA
Released2026-09-102026-08-13
Knowledge cutoff—2026-02

Architecture & context

Context window1M1M
Max output tokens384K384K
Input modalitiestext, imagetext
Reasoning modeoptionaloptional
Open weightsYesYes

Pricing (per Mtok)

Input$0.3$1.32
Output$1.2$3.96
Cached input$0.006$0.044
Batch input——
Free tierYesYes

Speed

Output speed (tok/s)——
Time to first token (s)——
Latency tierfastmedium

Trust & deployment

Trains on inputsYesYes
LicenseMITMIT
Clouds——
Compliance——

AI Panel scoring

Unified score8.68.5
Decision Maker8.58
Domain Strategist98.5
Finance Lead99
Domain Practitioner98.5
Power User8.57.5
Skeptic7.57.5
Value score9.69.4

Benchmarks

MMLU-Pro—87.5
GPQA Diamond90.990.1
SWE-bench Verified—80.6
HumanEval—76.8
LiveCodeBench—93.5
Terminal-Bench90.6—
MRCR Long Context—83.5
SimpleQA—57.9
Humanity's Last Exam36.837.7
LMArena Elo—1463
LMArena Coding Elo—1503

Scores link to their sources. Missing cells mean the vendor hasn't disclosed a result — honesty over padding.