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GPT OSS Chatbot Next.js streaming AI template interface
AI Chatbot Template

GPT OSS Chatbot

GPT OSS Chatbot is a polished Next.js AI chatbot template for builders who want to use OpenAI's GPT OSS model through OpenRouter. It includes token-by-token streaming, server-side reasoning token logging when usage is returned, stop generation, starter prompts, an internal scrolling transcript, and a responsive composer. Use it for assistant demos, model comparison prototypes, AI SaaS starters, or internal tools that need a clean GPT OSS chat interface.

Direct answer

GPT OSS Chatbot is a Next.js RAG chatbot template for document Q&A, OpenAI embeddings, retrieval augmented generation, and AI chatbot answers with citations. It is best for knowledge-base assistants, support documentation bots, document intelligence apps, and internal research copilots.

Download on GitHub View repository Explore AI Lab
OpenAI GPT OSS on OpenRouter OpenRouter

Features

Streaming text chat
openai/gpt-oss-120b model route
Server-side API route
Reasoning token usage logging
Responsive mobile interface
Internal chat transcript scrolling
Stop generation control

Use cases

GPT OSS chatbot demoAI assistant SaaSModel comparison prototypeInternal company chatbotOpenRouter AI experimentation

Freshness and tested metadata

last Tested
Jul 12, 2026
last Updated
Jul 12, 2026
next Version
Next.js 16.2.1
node Version
Node.js 20+
runtime
Next.js App Router
deployment
Vercel-ready starter
license
MIT
status
Open Source

Architecture

Next.js App Router page for the user-facing interface.
React components for the responsive chat, workflow, or document interaction surface.
Server-side route for AI provider calls so credentials stay outside the browser.
Tailwind CSS styling for a mobile-ready interface.
Retrieval layer for chunking, embeddings, evidence selection, and cited answer generation.
Agent workflow layer for prompt transformation, research, handoffs, and inspectable intermediate outputs.
Realtime session layer for WebRTC audio, ephemeral client secrets, live transcript rendering, and interruption handling.
OpenRouter SDK integration for multi-model routing, streaming responses, and model-specific experimentation.

Setup path

  1. 1Clone the GitHub repository linked above.
  2. 2Install dependencies with npm install.
  3. 3Create a local environment file from the example variables.
  4. 4Add the required AI provider API key on the server side.
  5. 5Run the local Next.js development server and test the primary workflow.

Related AI template categories

Next.js AI chatbot templates RAG chatbot templates for Next.js OpenAI Agents SDK templates Voice AI agent templates OpenRouter chatbot templates Next.js OpenAI templates ChatGPT clone templates Document Q&A AI templates

Internal template pathways

AI Templates OpenRouter Free Chatbot ChatGPT Clone AI Agents Starter

Frequently asked questions

What is GPT OSS Chatbot?

GPT OSS Chatbot is a Next.js RAG chatbot template for document Q&A, OpenAI embeddings, retrieval augmented generation, and AI chatbot answers with citations. It is best for knowledge-base assistants, support documentation bots, document intelligence apps, and internal research copilots.

Who should use GPT OSS Chatbot?

Use GPT OSS Chatbot if you are a Next.js developer, AI product builder, applied AI engineer, or founder looking for an open-source AI app starter instead of rebuilding the same AI interface and server route from scratch.

Is GPT OSS Chatbot production-ready?

This starter is production-grade in its AI safety baseline: prompts are hardened against prompt-injection attempts, provider calls stay server-side, unsafe inputs are constrained, and client-facing errors are kept safe. You should still expand it for your use case by adding or adapting authentication, tenant isolation, persistent storage, observability, quotas, billing, and business-specific policy checks before a real launch.