# Tera

## Docs

- [Text to speech](https://docs.tera.gw/api-reference/audio-speech.md): OpenAI-compatible TTS endpoint backed by Kokoro. Returns raw audio bytes.
- [Chat completions](https://docs.tera.gw/api-reference/chat-completions.md): OpenAI-compatible chat completions endpoint. Set `stream: true` for Server-Sent Events. Some models also return a `reasoning_content` field with chain-of-thought traces — see [Reasoning models](/concepts/reasoning).
- [Text completions](https://docs.tera.gw/api-reference/completions.md): OpenAI-compatible legacy completions endpoint. Prefer [chat completions](/api-reference/chat-completions) for new code.
- [List models](https://docs.tera.gw/api-reference/models.md): Returns the catalog of models currently available on Tera, including context length, pricing, supported features, and quantization.
- [Authentication](https://docs.tera.gw/authentication.md): How Tera API keys work.
- [OpenAI compatibility](https://docs.tera.gw/concepts/openai-compat.md): What carries over from OpenAI clients, and what's different.
- [Reasoning models](https://docs.tera.gw/concepts/reasoning.md): How to use chain-of-thought traces with Qwen3.5 and other thinking models.
- [Streaming](https://docs.tera.gw/concepts/streaming.md): Token-by-token output over Server-Sent Events.
- [Tool calling](https://docs.tera.gw/concepts/tool-calling.md): OpenAI-compatible function calling.
- [Introduction](https://docs.tera.gw/introduction.md): Tera is an OpenAI-compatible inference API serving high-quality open-weight models.
- [gpt-oss-120b](https://docs.tera.gw/models/gpt-oss-120b.md): openai/gpt-oss-120b on Tera
- [gpt-oss-20b](https://docs.tera.gw/models/gpt-oss-20b.md): openai/gpt-oss-20b on Tera
- [Kokoro-82M](https://docs.tera.gw/models/kokoro-82m.md): hexgrad/Kokoro-82M on Tera
- [Models overview](https://docs.tera.gw/models/overview.md): What's available on Tera today.
- [Qwen2.5-7B-Instruct](https://docs.tera.gw/models/qwen2-5-7b-instruct.md): Qwen/Qwen2.5-7B-Instruct on Tera
- [Qwen3.5-27B](https://docs.tera.gw/models/qwen3-5-27b.md): Qwen/Qwen3.5-27B on Tera
- [Qwen3.5-4B](https://docs.tera.gw/models/qwen3-5-4b.md): Qwen/Qwen3.5-4B on Tera
- [Pricing](https://docs.tera.gw/pricing.md): Per-token pricing for models on Tera.
- [Privacy](https://docs.tera.gw/privacy.md): Zero retention. Zero training. Zero human review.
- [Quickstart](https://docs.tera.gw/quickstart.md): Make your first inference request in under a minute.

## OpenAPI Specs

- [openapi](https://docs.tera.gw/openapi.yaml)