DeepSeek V4-Flash vs DeepSeek V4.1-Flash

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

DeepSeek
DeepSeek V4-Flashretired
8.7
AI Panel
DeepSeek
DeepSeek V4.1-FlashGA
8.6
AI Panel

Identity & lifecycle

ProviderDeepSeekDeepSeek
Family / tierDeepSeek V4 · FlashDeepSeek V4 · Flash
StatusretiredGA
Released2026-04-242026-09-10
Knowledge cutoff2026-02—

Architecture & context

Context window1M1M
Max output tokens384K384K
Input modalitiestexttext, image
Reasoning modeoptionaloptional
Open weightsYesYes

Pricing (per Mtok)

Input$0.14$0.3
Output$0.28$1.2
Cached input$0.0028$0.006
Batch input——
Free tierYesYes

Speed

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

Trust & deployment

Trains on inputsYesYes
LicenseMITMIT
Clouds——
Compliance——

AI Panel scoring

Unified score8.78.6
Decision Maker8.58.5
Domain Strategist8.59
Finance Lead9.79
Domain Practitioner8.59
Power User88.5
Skeptic7.57.5
Value score9.99.6

Benchmarks

MMLU-Pro86.2—
GPQA Diamond88.190.9
SWE-bench Verified79—
LiveCodeBench91.6—
Terminal-Bench—90.6
MRCR Long Context78.7—
SimpleQA34.1—
Humanity's Last Exam34.836.8
LMArena Elo1438—
LMArena Coding Elo1483—

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