stealthmodels.

MODEL BENCHMARKS

DeepSeek V4.1 Flash 1017: Beach

The 17 October checkpoint improves reasoning, coding, agentic tasks and visual understanding, with shorter outputs and faster task completion than the September release.

A good fit for

Coding agents, repository changes and long tasks that combine text and images.

Context window
1,000,000tokens[1]
License
MIT[3]
Model factsArchitecture, context & capabilities
First available
2026-10-17[1] [2]
Developer
DeepSeek-AI[1] [2]
Family
DeepSeek V4.1[1] [2]
Context window
1,000,000 tokens[1]
License
MIT[3]
Architecture
Sparse mixture-of-experts with a causal encoder-decoder design and native image understanding.[1] [2]
Input
text, image[2]
Output
text[2]
Normal speed
310.05 tokens/sec avgMin 226.08 · Max 424.94 tokens/secOur measurement
API access & pricingProviders, model IDs & rates
  • OpenRouterObserved 2026-10-18

    Available

    deepseek/deepseek-v4.1-flash-1017[4]
Run it locallyWeights, memory & deployment
Measurements & sources4 primary references

StealthMark score

StealthMark measures fluid and visual intelligence of AI models, resisting any pre-existing benchmark focused training.

General and Visual

General Intelligence

The ability to reason, solve problems and understand how things relate and behave.

Visual Intelligence

The ability to imagine, create and accurately reconstruct complex images in code form.

Judging

Scores reflect how well each result meets the benchmark requirements.

Overall score

Overall combines weighted task scores on a scale from 0 to 100. Estimated means the total includes an estimate for one missing scene.

Scoring categories

Task & likeness

Subjects, actions and likeness.

Anatomy & construction

Coherent bodies, joints and machinery.

Space & placement

Perspective, scale and contact.

Light & reflections

Lighting, shadows and reflections.

Purposeful detail

Clear, purposeful small features.

Artistry & character

Composition, expression and drawing skill, including complexity and its execution.

Materials & effects

Surfaces, texture and movement.

Visual integrity

Clean shapes, layers and edges.

BENCHMARK RESULTS

Compare results

This link opens the same results in the same order.

StealthMark benchmark results

Reset benchmark preferences?

Return to the default view, clear comparison selections and restore the advertisement.