Glyph Cluster is now available in stealth for free on AI Gateway
Vercel's AI Gateway now routes Glyph Cluster—a reasoning model for code review and long-context work—free during stealth. Coding agents in Claude Code, Cursor, and Codex can access it today.

Why it matters
Glyph Cluster joins AI Gateway's unified API layer, giving practitioners a new reasoning model for multi-step code analysis and agent workflows. Free stealth access lowers the friction to test; function calling and streaming enable agent integration, though ZDR is off and training use is permitted.
The key facts
15 to knowGlyph Cluster available free on AI Gateway during stealth for Pro and Enterprise plan holders
Reasoning model optimized for coding, planning, synthesis, quantitative reasoning, multi-step analysis
Supports function calling; streams responses; text input only; no image or file input
Callable via AI SDK, Chat Completions, Responses APIs, or integrated coding agents (Claude Code, Codex, Cursor)
Model name: stealth/glyph-cluster
ZDR (Zero Data Retention) not available; prompts and responses may be used for training
AI Gateway provides unified API, cost tracking, custom reporting, budgets, routing, failover; no platform fee on inference
Provider pricing reflected with no markup; BYOK (Bring Your Own Key) supported
Glyph Cluster available stealth-free on AI Gateway for Pro and Enterprise plan holders with purchased credits
Supports function calling for agent tool integration; streams responses
Text input only; no image or file input; structured outputs not supported
Zero Data Retention (ZDR) not available; prompts and responses may be used for model training
Callable via AI SDK, Chat Completions API, or coding agents connected to AI Gateway
AI Gateway reflects provider pricing with no platform fee on inference, including BYOK requests
Integrates with Claude Code, Codex, Cursor via Vercel CLI setup
The story so far
Earlier coverage of this storyline
- Laya decision model now available on AI Gateway, free through October 31Vercel Blog
- This story
Go to the source
Vercel Blogvercel.com
Publisher excerpt: is now available on as a stealth model for teams on with purchased AI Gateway credits. It is free to use during the stealth period.Glyph ClusterAI GatewayPro and Enterprise plans Glyph Cluster is a reasoning model for coding and long-context analysis, and handles multi-step work such as planning,…