What is xAI TTS good for in game development?

xAI TTS is the speech model behind Grok's voices. It offers 28 voices in 21 languages and reads inline tags such as laugh, sigh and pause as delivery, and it is one of the lowest priced models here. Typical game uses: lively companion and sidekick chatter; long scripts such as lore entries and journals, up to 15,000 characters at a time; multilingual voice lines from the same voice.

How much does xAI TTS cost in Summer?

xAI TTS costs 1.8 credits / minute in Summer Studio. It is charged from your Summer credits, and the price includes Summer's margin on top of the provider cost.

What kind of audio can xAI TTS make?

In Summer, xAI TTS is used for text to speech.

Can I use xAI TTS from Claude Code, Cursor or Codex?

Yes. Connect the Summer MCP server to Claude Code, Cursor, Codex or another MCP client, then ask your agent to generate with summer_generate_audio with capability: "text_to_speech", modelId: "xai-tts-v1". Setup instructions are at summerengine.com/mcp.

Where do xAI TTS results go?

Every generation is saved to your Summer asset library. From there you can download it or bring it into a Summer Engine project.

All models

xAI / Audio

xAI TTS for game development

Grok's expressive voices, with laugh, sigh and pause tags.

Try xAI TTS in Summer Studio Use it from Claude, Cursor or Codex Playground and API

Price in Studio: 1.8 credits / minute
Inputs: Text to speech

What it is

xAI TTS is the speech model behind Grok's voices. It offers 28 voices in 21 languages and reads inline tags such as laugh, sigh and pause as delivery, and it is one of the lowest priced models here.

What it is good for in games

Lively companion and sidekick chatter.
Long scripts such as lore entries and journals, up to 15,000 characters at a time.
Multilingual voice lines from the same voice.

What you pay

Mode	Studio model	Price
Text to speech	xAI TTS	1.8 credits / minute

Charged from your Summer credits. Prices include Summer's margin on top of the provider cost.

Use it from Claude, Cursor or Codex

Connect the Summer MCP server to Claude Code, Cursor, Codex or any MCP client, and your agent can generate with xAI TTS while it builds your game.

summer_generate_audio with capability: "text_to_speech", modelId: "xai-tts-v1"

Set up the Summer MCP server

Questions

What is xAI TTS good for in game development?: xAI TTS is the speech model behind Grok's voices. It offers 28 voices in 21 languages and reads inline tags such as laugh, sigh and pause as delivery, and it is one of the lowest priced models here. Typical game uses: lively companion and sidekick chatter; long scripts such as lore entries and journals, up to 15,000 characters at a time; multilingual voice lines from the same voice.
How much does xAI TTS cost in Summer?: xAI TTS costs 1.8 credits / minute in Summer Studio. It is charged from your Summer credits, and the price includes Summer's margin on top of the provider cost.
What kind of audio can xAI TTS make?: In Summer, xAI TTS is used for text to speech.
Can I use xAI TTS from Claude Code, Cursor or Codex?: Yes. Connect the Summer MCP server to Claude Code, Cursor, Codex or another MCP client, then ask your agent to generate with summer_generate_audio with capability: "text_to_speech", modelId: "xai-tts-v1". Setup instructions are at summerengine.com/mcp.
Where do xAI TTS results go?: Every generation is saved to your Summer asset library. From there you can download it or bring it into a Summer Engine project.