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Glyph Cluster is now available in stealth for free on AI Gateway

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Glyph Cluster is now available on AI Gateway as a stealth model for teams on Pro and Enterprise plans with purchased AI Gateway credits. It is free to use during the stealth period.

Glyph Cluster is a reasoning model for coding and long-context analysis, and handles multi-step work such as planning, synthesis, quantitative reasoning, and comparing material across large inputs.

For coding, Glyph Cluster can review code, explain failures, debug issues, propose changes, and reason through implementation options. It supports function calling, so agents can connect its reasoning to your own tools and systems, and it streams responses as they are generated.

Glyph Cluster takes text input only, with no image or file input. Tool use is limited to function tools you define, and structured outputs are not supported.

ZDR is not available for this model, and prompts and responses sent through it may be used for training and model improvement.

Call it through the AI SDK or the OpenAI-compatible Chat Completions and Responses APIs, or select it in a coding agent connected to AI Gateway.

Use stealth/glyph-cluster as the model name:

import { streamText } from 'ai';


const result = streamText({
  model: 'stealth/glyph-cluster',
  prompt: 'Plan a migration from Express to Next.js route handlers.',
});
View model details

To use it in Claude Code, Codex, Cursor, and more, install the latest Vercel CLI and run setup:

npm i -g vercel@latest
vercel ai-gateway setup

Then select stealth/glyph-cluster in the agent. See the coding agents guide for details.

Try Glyph Cluster in the model playground.

AI Gateway provides a unified API for calling models, tracking usage and cost, and configuring retries, failover, and performance optimizations for higher-than-provider uptime. It includes built-in custom reporting, Zero Data Retention support, budgets for API keys, routing rules, and more.

AI Gateway reflects provider pricing with no markup and does not charge a platform fee on inference, including on Bring Your Own Key (BYOK) requests.

You can view all language models available on AI Gateway.