xAI: Grok Build 0.1 API
Grok Build 0.1 by xAI. 256,000 token context. Call it via ePhone AI's unified API.
- Context window: 256,000 tokens
- Input: text, image
- Output: text
- Reasoning: Supported
- Tool calling: Supported
- File input: Supported
- Released: 2026-05-29
Frequently Asked Questions
What is the context window of Grok Build 0.1?
Grok Build 0.1 supports a context window of up to 256,000 tokens.
Does Grok Build 0.1 support function calling?
Yes. Grok Build 0.1 supports tool / function calling.
Does Grok Build 0.1 support reasoning?
Yes. Grok Build 0.1 is a reasoning-capable model.