stealthmodels.

MODEL FIELD GUIDE

Grok 4.7

Hosted reasoning with a 500k-token context and competitive token rates. High reasoning effort can add substantial time before the first answer token.

A good fit for

Coding and knowledge-intensive analysis in xAI's ecosystem when deliberate reasoning matters more than an immediate first response.

Context window
500,000tokens[2]
Model factsArchitecture, context & capabilities
First available
2026-09-21[1]
Developer
SpaceXAI[1] [2]
Family
Grok 4.7[1] [2]
Context window
500,000 tokens[2]
Input
text, image[2]
Output
text[2]
API access & pricingGrok API · $2 input / $6 output · per 1M tokens

Grok API; input 2 USD/1M; cached read 0.5/1M; output 6/1M

[1] [2]
  • Grok APIObserved 2026-10-06
    Input $2Output $6Cached read $0.5

    per 1M tokens

    Available

    grok-4.7[1] [2]
Measurements & sources3 primary references · Speed & serving conditions
  • Grok APIObserved 2026-10-06
    [1]
  • Artificial AnalysisObserved 2026-10-06

    92.1 tokens/s decode

    43,170 ms to first token

    xhigh

    [3]

StealthMark score

StealthMark measures fluid and visual intelligence of AI models.

General and Visual

General Intelligence

Perspective, anatomy, correct shadows, purposeful detail and physical consistency.

Visual Intelligence

Likeness, anatomy, detail, light, materials, composition and artistic expression.

Judging

Frontier Models blindly judge the AI generation unbiased through an intricate process. Our researchers control for mistakes.

Overall score

Overall combines weighted task scores on a scale from 0 to 100. Repeating a task does not increase its weight. Estimated means the total includes an estimate for one missing scene.

Benchmaxxing

Benchmaxx flags models that score unusually well on the familiar Pelican task compared with their other benchmark results. The percentage measures that imbalance, not the probability of training contamination. Flagged Pelican scores are excluded from Overall. Pelican never counts toward General or Visual.

We keep some prompts private to discourage test-specific optimization.

Scoring categories

Prompt & 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.

Materials & effects

Surfaces, texture and movement.

Visual integrity

Clean shapes, layers and edges.

BENCHMARK RESULTS

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StealthMark benchmark results

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