DeepSeek

DeepSeek-V4

Released Apr 24, 2026 · knowledge cutoff unpublished

Status: Superseded
Location: China
Modality: Text
Context window: 1M
Max output: 384K
Speed: —
Price ($/MTok in / out): $0.43 / $0.87
Cost per task (max effort): $0.045
Open weights: Yes

Benchmarks4 of 8 reported

MMLU-Pro

87.5%

GPQA Diamond

90.1%

SWE-bench Verified

80.6%

Humanity's Last Exam

48.2%

Terminal-Bench 2.1

—

AIME (latest)

—

LMArena Elo

—

ARC-AGI-2

—

Strengths & weaknesses

Strengths

Cheap enough to change what you are willing to spend tokens on at all
Whole codebases fit in context, so cross-file work needs no chunking
The small variant is fast and good enough for most work; the large one is there when it isn't

Weaknesses

Reads as benchmark-tuned — stronger on tests than in day-to-day use
Serving capacity is chip-constrained, so the top variant is frequently unavailable
No dedicated reasoning line to escalate to

V4-Pro is a 1.6T/49B-active MoE; V4-Flash costs $0.14/$0.28. MMLU-Pro 87.5 / GPQA 90.1 are DeepSeek-reported for V4-Pro in Max reasoning mode; HLE 48.2 is third-party (LLM-Stats), same mode.

For developers

API model strings

Not researched

Licence

Not researched

Retirement

No retirement announced

Lineage

No recorded predecessor