AD
Track all your projects in one dashboard. Get 📊stats, 🔥heatmaps and 👀recordings in one self-hosted dashboard.
uxwizz.com
#52

DeepSeek V4.1 Flash

DeepSeek Release: 2026-09-10 Tested on: 2026-10-01 04:38 deepseek/deepseek-v4.1-flash::high
748B total (16B active)MoEOpen source

Summary

DeepSeek V4.1 Flash scores 8.7 on AI BENCHY and ranks #52. It has 9.7 reliability, a 75.4% pass rate, $0.617 total cost, and 33.27s average response time.

Model facts

Researched on 2026-09-10

Reported
Parameters
748B total (16B active)
Architecture
MoE
Availability
Open source
License
MIT

Total is 552B backbone plus 196B Engram conditional-memory parameters. Active count is 16B during decode; prefill activates 8B per token. The exact checkpoint includes MIT-licensed weights and a runnable inference implementation.

Score

8.7

Consistency

9.0

Total Cost (Current Price)

$0.617 ↑ +109.0%

Tested at: $0.295

Total Output Tokens

464,156

Total Input Tokens

282,490

Input Price

$0.013 / 1M

Output Price

$1.320 / 1M

Cache Read Price

$0.013 / 1M

Cache Write Price

N/A

Cache prices apply to input tokens. Reads reuse cached prompts; writes store them and can cost extra. Output tokens use the output price.

Tests Correct

Wrong Tests: 7

Attempt pass rate: 75.4%

Flaky tests

3

Flaky tests had mixed outcomes across runs (at least one pass and one fail).

Response Time (avg)

33.27s

Response Time (max): 205.53s

Response Time (total): 765.12s

Hamster playing table tennis

Prompt: Create a detailed SVG illustration of a hamster playing table tennis.

#52 DeepSeek V4.1 Flash

high
Cost
$0.035
Time
111.0s
Tokens
29,201 tok

Price History

Historical pricing data for this model from OpenRouter.

Date Input Price Output Price Cache Read Price Cache Write Price
2026-10-06 14:54 $0.013 / 1M $1.320 / 1M $0.013 / 1M N/A

Charts

Choose the first model, then click a second model to open a side-by-side page.

Total Output Tokens

Score vs Total Output Tokens

Quick Compare

Category Breakdown

Category Score Consistency Tests Correct
Agentic 10.0 10.0
Anti-AI Tricks 8.3 10.0
Coding 10.0 10.0
Combined 10.0 10.0
Data parsing and extraction 6.5 10.0
Domain specific 5.3 7.2
General Intelligence 10.0 10.0
Instructions following 10.0 10.0
Puzzle Solving 6.4 4.9
Tool Calling 10.0 10.0
Trivia 3.0 10.0

Compared models