Qwen3.5-4B vs DeepSeek-V4-Flash-Vision-Exp

Specs, VRAM requirements and download trends — updated 23 September 2026.

Qwen · A · Open weights
Params
4.7 B
Context
—
30d
7.6 M
apache-2.0 · commercial OK
deepseek-ai · B · Open weights
Params
304.6 B
Context
1,048,576
30d
836 K
mit · commercial OK

Specification comparison

Differences are highlighted; identical values are muted.

Specification Qwen3.5-4B DeepSeek-V4-Flash-Vision-Exp
Deployment Open weights Open weights · also via API
Parameters 4.7 B 304.6 B
Architecture Qwen3_5ForConditionalGeneration DeepseekV4ForCausalLM
Context length — 1,048,576
Licence apache-2.0 mit
Commercial use Allowed Allowed
Languages — —
Downloads 30d 7,630,082 835,578
Downloads all time 54.0 M 1.1 M
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated No No
First seen on the Hub 2026-02-27 2026-08-31
API input price / 1M tokens not on OpenRouter $0.22
API output price / 1M tokens not on OpenRouter $0.65
Est. cost per 1M input + 1M output tokens not on OpenRouter $0.86
Cached input / 1M tokens not on OpenRouter $0.0069
AA Intelligence Index not on OpenRouter 34.8
AA Coding Index not on OpenRouter 65
AA Agentic Index not on OpenRouter 47.5
Max output tokens not on OpenRouter 262,144
API providers not on OpenRouter 3
Tool calling not on OpenRouter Yes
Reasoning mode not on OpenRouter Yes

API cost

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

DeepSeek-V4-Flash-Vision-Exp $0.86

Download trend

Daily snapshots, last 88 days (28 Jul – 23 Oct)

8.1 M836 K
Qwen3.5-4B DeepSeek-V4-Flash-Vision-Exp

VRAM side by side

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

Qwen3.5-4B · fp16 11.5 GB / 24 GB
✅ Runs comfortably
DeepSeek-V4-Flash-Vision-Exp · fp16 @ 1024K ctx 6,034.3 GB / 24 GB
❌ Won’t fit

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