Nemotron 3.5 Lightning now available on AI Gateway for free

NVIDIA's Nemotron 3.5 Lightning is now available for free on Vercel's AI Gateway under the model name nvidia/nemotron-3.5-lightning-free, served by NVIDIA. The open-weight reasoning and chat model has 30B parameters with 3B active per token in a hybrid Mixture-of-Experts design interleaving Mamba-2 and MoE layers with a few attention layers, a 1M token context window, and support for tool calling and structured outputs. Vercel notes the provider may retain prompts for model improvement, and the model can be called through the AI SDK, Chat Completions, Responses, and Messages APIs or a coding agent connected to AI Gateway.

Nemotron 3.5 Lightning https://vercel.com/ai-gateway/models/nemotron-3.5-lightning-free from NVIDIA https://vercel.com/ai-gateway/models/providers/nvidia is now available for free on AI Gateway https://vercel.com/ai-gateway as nvidia/nemotron-3.5-lightning-free , served by NVIDIA. Nemotron 3.5 Lightning is an open-weight reasoning and chat model for long-running agents, sub-agent work, chatbots, and RAG systems. The model has 30B parameters with 3B active per token, in a hybrid Mixture-of-Experts design that interleaves Mamba-2 and MoE layers with a few attention layers. It has a 1M token context window and supports tool calling and structured outputs. Note: The provider may retain prompts for model improvement. Call Nemotron 3.5 Lightning through the AI SDK https://vercel.com/docs/ai-gateway/sdks-and-apis/ai-sdk , the Chat Completions https://vercel.com/docs/ai-gateway/sdks-and-apis/openai-chat-completions , Responses https://vercel.com/docs/ai-gateway/sdks-and-apis/responses , and Messages https://vercel.com/docs/ai-gateway/sdks-and-apis/anthropic-messages-api APIs, or a coding agent https://vercel.com/docs/ai-gateway/coding-agents connected to AI Gateway. Use nvidia/nemotron-3.5-lightning-free as the model name: To use it in Claude Code, Codex, Cursor, and more, install the latest Vercel CLI and run setup: Then select nvidia/nemotron-3.5-lightning-free in the agent. See the coding agents guide https://vercel.com/docs/ai-gateway/coding-agents for details. 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 https://vercel.com/changelog/custom-reporting-ai-gateway , budgets for API keys https://vercel.com/docs/ai-gateway/authentication-and-byok/api-keys , routing rules https://vercel.com/docs/ai-gateway/models-and-providers/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 https://vercel.com/docs/ai-gateway/authentication-and-byok/byok BYOK requests. You can view all language models https://vercel.com/ai-gateway/models?type=text available on AI Gateway.