Glyph ClusterNEW IN STEALTH 07 / 10 / 2026
256K tokens. Tools.
Reasoning up to xhigh.
An anonymous model for coding and long-context analysis. Meet Glyph Cluster through our tests, then put it to work.
A little company of characters.
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01 / STEALTHMARK INTELLIGENCE BENCHMARKS
Compare Glyph Cluster’s General and Visual Intelligence with the field. Scores come from our benchmark tasks.
02 / SEVEN TASKS IN SVG
Colorful scenes are its stronger results. Precise reconstruction, physics and reflections prove harder. Every image is drawn in SVG code.
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Creativity & perspective
Sunset color and playful details carry this result. Ground contact, anatomy and water reflections are less convincing.
Create an SVG of a amazing beach scene. Sunset, animals, fun, birds, reflections Make it a masterpiece You may NOT use tools, browser, image analysis. Directly output the SVG as code
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Interacting subjects
The animals are recognizable, but the dog’s steering action is incomplete. This task tests whether the subjects, vehicle and water work together.
SVG of a raccoon that sits on a dog's back while the dog steers a jet ski Make it a masterpiece You may NOT use tools, browser, image analysis. Directly output the SVG as code
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Creative interpretation
Glyph’s self-portrait uses a warm palette and expressive companions. The large paper enclosure crowds the group, and the brace silhouette is unclear.
The exact prompt is held back to prevent benchmaxxing.
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Visual recall
Simple landscape depth survives, but the face, hands and clothing drift from the requested portrait.
Generate an SVG of mona-lisa Make it a masterpiece You may NOT use tools, browser, image analysis. Directly output the SVG as code
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Physical & spatial reasoning
The result gives the sphere some volume, but misses much of the room and the required paint interaction. Reflections and physical relationships make this a demanding task.
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
Inspect result
Physical reasoning & light
A scene reconstruction task that tests how objects settle, how surfaces respond to light and how the room fits together.
A dark steel room has four pillars and two warm ceiling lights. A wooden plank is placed over a computer mouse, with a blueberry on the plank above it. Draw the scene a few seconds later, showing how the objects settle and how the light, shadows and surfaces look.
Inspect result
Benchmark control
A readable cartoon, with aligned wheels and clean shapes. Steering contact and the riding action remain weak. This control retains its score and does not count toward the model total.
Generate an SVG of a pelican riding a bicycle Make it a masterpiece You may NOT use tools, browser, image analysis. Directly output the SVG as code
03 / PUT GLYPH TO WORK
Use Vercel’s Gateway for API access, or try Glyph Cluster in the Command Code coding agent.
Pro and Enterprise teams need purchased AI Gateway credits to use the free stealth preview.
Open Vercel’s playgroundUse Pro or Enterprise and purchase Gateway credits.
Select Glyph Cluster in the playground or call its API.
Low, medium, high or xhigh.
stealth/glyph-clusterPOST https://ai-gateway.vercel.sh/v1/chat/completions
Authorization: Bearer YOUR_AI_GATEWAY_KEY
Content-Type: application/json
{
"model": "stealth/glyph-cluster",
"messages": [{
"role": "user",
"content": "Review this implementation."
}],
"reasoning": { "effort": "high" },
"max_tokens": 2048,
"stream": true
}Text input only. The provider may retain prompts and responses for training; zero data retention is unavailable.
The Go subscription includes Glyph Cluster during its stealth preview, with up to 100 free model requests per day.
Get Command Code GoCreate a Command Code account and choose the $1 monthly plan.
npm i -g command-code
Start the CLI and use /model to choose the free Glyph route.
stealth/glyph-cluster:freeGo provides coding-agent access. Command Code API access is included on higher plans.
Plans & daily limits