# NexLLM

> Unified AI model gateway for GPT, Claude, and Gemini through a single OpenAI-compatible API.

## Docs

- [Configure Your NexLLM Personal Settings and Security](https://docs.nexllm.ai/account/personal-settings.md): Manage your NexLLM profile, notification preferences, sidebar layout, security settings, and two-factor authentication all from Personal Settings.
- [View and Analyse NexLLM API Usage Logs and Statistics](https://docs.nexllm.ai/account/usage-logs-and-statistics.md): Track every API request with detailed per-call usage logs, then analyse quota trends, token consumption, and model activity in the NexLLM Dashboard.
- [NexLLM Wallet: View Balance and Add Funds via Stripe](https://docs.nexllm.ai/account/wallet-and-top-up.md): View your current balance, total usage, and API requests, then top up your NexLLM wallet with any whole-dollar amount from 1 USD using Stripe.
- [Audio API: Speech-to-Text and Text-to-Speech via NexLLM](https://docs.nexllm.ai/api-reference/audio.md): Transcribe audio files to text with POST /v1/audio/transcriptions, or generate speech with POST /v1/audio/speech — fully OpenAI-compatible.
- [Authenticating API Requests to NexLLM: Complete Guide](https://docs.nexllm.ai/api-reference/authentication.md): Pass your NexLLM API key in the Authorization header as a Bearer token, or use native provider headers for Claude and Gemini format requests.
- [Chat Completions API: Generate AI Responses via NexLLM](https://docs.nexllm.ai/api-reference/chat-completions.md): Send messages to POST /v1/chat/completions to generate conversational AI responses from GPT, Claude, or Gemini models with optional streaming.
- [Embeddings API: Convert Text to Vectors with NexLLM](https://docs.nexllm.ai/api-reference/embeddings.md): Use POST /v1/embeddings to transform text into high-dimensional vector representations for semantic search, RAG pipelines, and similarity matching.
- [Image Generation API: Create and Edit Images in NexLLM](https://docs.nexllm.ai/api-reference/image-generation.md): Use POST /v1/images/generations to generate images from text prompts, or POST /v1/images/edits to modify existing images — all via one unified API.
- [NexLLM Models API: List Available AI Models by Key](https://docs.nexllm.ai/api-reference/models.md): Call GET /v1/models to retrieve the list of AI models available to your API key based on its assigned channel group, including GPT, Claude, and Gemini.
- [NexLLM API Reference: Endpoints and Base URL Guide](https://docs.nexllm.ai/api-reference/overview.md): Explore NexLLM's OpenAI-compatible REST API at https://www.nexllm.ai/v1, covering chat, embeddings, images, audio, and more in one unified gateway.
- [Channel Groups: Model Access, Pricing, and Connectivity](https://docs.nexllm.ai/channel-groups/overview.md): Channel groups control which models your API key can access and the pricing ratio applied to your usage costs. Each API key belongs to exactly one group.
- [Model Pricing: Token Costs, Caching, and Group Ratios](https://docs.nexllm.ai/channel-groups/pricing-overview.md): Learn how NexLLM calculates costs across token types, model families, and channel groups — covering input/output billing and provider cache rules.
- [Generate, Configure, and Secure Your NexLLM API Keys](https://docs.nexllm.ai/get-started/getting-your-api-keys.md): Create and configure NexLLM API keys with optional expiry, quota limits, model restrictions, and IP allowlists to authenticate your API requests.
- [NexLLM Quickstart: Make Your First API Call in Minutes](https://docs.nexllm.ai/get-started/quickstart.md): Make your first NexLLM API call using the built-in Playground, a curl command, or the Python OpenAI SDK — all pointing at a single base URL.
- [Create Your NexLLM Account, Sign In, and Reset Password](https://docs.nexllm.ai/get-started/registration-and-login.md): Learn how to register a new NexLLM account with email verification, sign in with your password, and recover access if you forget your password.
- [NexLLM: Unified API Gateway for GPT, Claude & Gemini](https://docs.nexllm.ai/introduction.md): NexLLM gives you one OpenAI-compatible API to access GPT, Claude, and Gemini models — with channel groups, a built-in Playground, and wallet billing.
- [Anthropic Claude Series Models: Capabilities and Use Cases](https://docs.nexllm.ai/models/claude-series.md): Explore Anthropic's Claude models on NexLLM, covering long-context reasoning, coding performance, safety alignment, and enterprise use cases.
- [Google Gemini Series Models: Capabilities and Use Cases](https://docs.nexllm.ai/models/gemini-series.md): Explore Google DeepMind's Gemini models on NexLLM, covering native multimodal capabilities, massive context windows, and enterprise use cases.
- [OpenAI GPT Series Models: Capabilities and Use Cases](https://docs.nexllm.ai/models/gpt-series.md): Explore the GPT model family on NexLLM — from GPT-4o to GPT-5.5 — covering capabilities, context windows, multimodal support, and use cases.

## Optional

- [Dashboard](https://www.nexllm.ai)