[▲ Vercel Community](/) · [Categories](/categories) · [Latest](/latest) · [Top](/top) · [Live](/live) [AI SDK](/c/ai-sdk/62) # Questions Regarding AI Gateway Billing, Usage Tracking etc 269 views · 0 likes · 2 posts The Wise Duck Dev (@wiseduckdev) · 2025-05-24 Hi Vercel team and developer community, I’m currently evaluating the **Vercel AI Gateway** for a multi-tenant SaaS platform focused on developers. The AI Gateway is incredibly appealing in terms of abstracting the complexity of multi-model LLM integration — and it aligns well with our goal at **Wise Duck Dev GPTs** to support 800+ specialized AI Assistants (e.g., for web, mobile, blockchain, game development, etc.), especially now that we are currently building the version 3 of the platform. That said, I’m still determining whether to: * Fully adopt the Gateway as the foundation of our LLM infrastructure * Or continue building a BYOK (Bring Your Own Key) system to manage user consumption independently --- ### **Core Use Case of the V3 of the Wise Duck Dev GPTs (Hypothetical for Now)** * Users interact with domain-specific Assistants that use different LLMs * Models can change mid-conversation (e.g., GPT-4o → Claude 3 → Gemini 1.5) * Usage-based billing is tied to individual user behavior --- ### **Key Questions** **1. Billing Scope** Will the AI Gateway bill usage at the **project level** (i.e., to the app owner’s Vercel account), or is there support or future intent for **user-scoped usage tracking and billing**? Can we issue unique Gateway tokens per user or session and attribute usage accordingly? **2. Usage Transparency** If user-scoped billing is planned: * Will we be able to retrieve detailed usage logs per user (e.g., token usage per LLM)? * Or will Vercel generate billing reports that would be available through an endpoint? **3. Feature Suggestion: Credit-Based Model** Would Vercel consider introducing a **credit system**, where users: * Purchase usage credits (e.g., $10 = X tokens) * Can auto-top-up below a balance threshold * Set usage limits to avoid unexpected charges This would be ideal for SaaS platforms that want to offer pay-as-you-go access while maintaining usage clarity and cost control for users in my opinion. **4. Timeline** Do you have any timeline in mind about when the billing functionality will be deployed? **5. Model-Specific Features** Will the Gateway eventually **manage access to model-specific capabilities** like: * File uploads (e.g., GPT-4o vision or Claude tools) * Image generation or interpretation * Tool use (code interpreter, retrieval, etc.) If so, will those capabilities be: * Abstracted automatically (like standard prompts)? * Or customizable ? and if yes, how? Understanding how AI Gateway will expose and secure these advanced model features is important as we begin designing chat interfaces and workflows. --- ### Why This Matters To Us These details will help determine whether: * We adopt AI Gateway as our default model access layer * Or we continue to build our own system where advanced users use BYOK and credit tracking The Vercel AI SDK + Gateway is already an amazing foundation. If future roadmap plans include per-user billing, usage transparency, and feature access controls, it could become an incredible LLM infrastructure for modern SaaS teams. --- Thanks again to the team for building such a forward-thinking developer stack — and thanks in advance for any clarity you can provide. Yann Founder, Wise Duck Dev GPTs (AI Platform for Developer-Centric Assistants) Kasu (@lodos3) · 2025-05-25 vercel is dead along with v0 chat, theyve destroyed it entirety time to move on