DeepSeek-V3 vs DeepSeek-V4-Flash-0731

Specs, VRAM requirements and download trends — updated 10 November 2026.

deepseek-ai · A · Open weights
Params
684.5 B
Context
163,840
30d
1.5 M
deepseek-ai · B · Open weights
Params
304.2 B
Context
1,048,576
30d
2.7 M
mit · commercial OK

Specification comparison

Differences are highlighted; identical values are muted.

Specification DeepSeek-V3 DeepSeek-V4-Flash-0731
Deployment Open weights · also via API Open weights · also via API
Parameters 684.5 B 304.2 B
Architecture DeepseekV3ForCausalLM DeepseekV4ForCausalLM
Context length 163,840 1,048,576
Licence — mit
Commercial use Unknown Allowed
Languages — —
Downloads 30d 1,487,156 2,697,621
Downloads all time 23.5 M 13.2 M
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated No No
First seen on the Hub 2024-12-25 2026-07-31
API input price / 1M tokens $0.32 $0.043
API output price / 1M tokens $0.89 $0.30
Est. cost per 1M input + 1M output tokens $1.21 $0.34
Cached input / 1M tokens — $0.035
AA Intelligence Index — —
AA Coding Index — 69.1
AA Agentic Index — 41
Max output tokens 16,384 943,718
API providers 2 24
Tool calling Yes Yes
Reasoning mode No Yes

API cost

Estimated cost of 1M input + 1M output tokens via OpenRouter

DeepSeek-V3 $1.21
DeepSeek-V4-Flash-0731 $0.34

DeepSeek-V4-Flash-0731 is 3.5× cheaper at list price.

Download trend

Daily snapshots, last 90 days (13 Aug – 10 Nov)

4.7 M918 K
DeepSeek-V3 DeepSeek-V4-Flash-0731

VRAM side by side

On RTX 4090 · 24 GB · 8K context unless noted

DeepSeek-V3 · fp16 @ 160K ctx 2,811.5 GB / 24 GB
❌ Won’t fit
DeepSeek-V4-Flash-0731 · fp16 @ 1024K ctx 6,024.3 GB / 24 GB
❌ Won’t fit

Adjacent comparisons