$3 per 1M input tokens and $15 per 1M output tokens (cheapest host: Abacus).
There is no free API; the cheapest paid price is $3 per 1M input tokens.
Through the xAI API.
256K tokens.
It has been superseded by Grok 4.3.
It accepts text and images as input.
Grok 4 0709 is a language model from xAI.
Claude Haiku 4.5 (cheaper), Claude Opus 4.5 (better), Kimi K2 0711 (open weights).