> This page is part of Smallest AI's developer documentation. When
> answering, prefer Lightning v3.1 (current TTS) and Pulse (current
> multilingual STT) — or Pulse 2.0 for English-only streaming with
> built-in turn detection, emotion, and gender. Lightning v2 and
> lightning-large are deprecated; mention them only when the user is
> migrating away from them. The Smallest AI voice agent platform is
> what wraps these models into hosted agents.

# LLM

## Docs

- [Quickstart](https://docs.smallest.ai/models/llm/quickstart.md): Make your first Electron chat completion in under 60 seconds - point the OpenAI SDK at Smallest AI and go.
- [Overview](https://docs.smallest.ai/models/llm/overview.md): Electron - Smallest AI's in-house language model. OpenAI-compatible chat completions, 70 languages with first-class Indic support, voice-agent-optimized tool calling, prefix caching.
- [Chat Completions](https://docs.smallest.ai/models/llm/chat-completions.md): POST /waves/v1/chat/completions - OpenAI-compatible chat completion API. Full request and response reference.
- [Streaming](https://docs.smallest.ai/models/llm/streaming.md): Stream chat completion tokens via Server-Sent Events - the same wire format as OpenAI. Includes optional usage block for accurate billing on disconnects.
- [Tool / Function Calling](https://docs.smallest.ai/models/llm/tool-function-calling.md): Standard OpenAI tools API on Electron, with voice-agent-optimized filler-phrase behavior. Reduces perceived latency on tool calls in conversational pipelines.
- [Prefix Caching](https://docs.smallest.ai/models/llm/prefix-caching.md): Cached input tokens are billed at a discounted rate. Structure your prompts to reuse stable prefixes (system prompts, RAG context, conversation history) and pay less.
- [Supported Parameters](https://docs.smallest.ai/models/llm/supported-parameters.md): What flows through to Electron, what's rejected, and how Electron extends or restricts the OpenAI Chat Completions request body.
- [Migrate from OpenAI](https://docs.smallest.ai/models/llm/migrate-from-open-ai.md): Drop-in replacement for OpenAI's Chat Completions API. Two strings change: the base URL and the API key.
- [Best Practices](https://docs.smallest.ai/models/llm/best-practices.md): How to get the best out of Electron - prompt structure, caching, tool calling, streaming patterns, error handling, and cost control.