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DeepSeek
DeepSeek-V4.1-Flash
NewLive · US + CAtextimageMIT
DeepSeek's efficient multimodal update to V4 Flash, MIT-licensed with a 1M-token context window.
Price per 1M tokens
Input
$0.22
Cached input
$0.007
Output
$0.66
Priced per model · Same in US and CA · Free tier included · Pricing
AA Index
39
#6 of 14
open models we serve
Specs
- Model id
deepseek-v4-1-flash- Weights released
- Sep 10, 2026
- Parameters
- 552B total · 16B active
- Architecture
- MoE
- Context
- 1M tokens (1,000,000)
- Input
- text, image
- License
- MIT
- Regions
- us, ca
Benchmarks
- Artificial Analysis Intelligence Index39
- GPQA Diamond90.9%
- LiveCodeBench73.3%
Sources: huggingface.co · artificialanalysis.ai · datanorth.ai
Use it
Three lines of code, or zero.
OpenAI-compatible. Use the model id below, or auto to let the router decide when this model is worth it.
import os
from openai import OpenAI
client = OpenAI(base_url=os.environ["ST_BASE_URL"], api_key=os.environ["ST_API_KEY"])
resp = client.chat.completions.create(
model="deepseek-v4-1-flash",
messages=[{"role": "user", "content": "Hello"}],
)