Grok 4.3 (batch) — Free AI Chat on Rewind.ai

Chat with Grok 4.3 (batch) for free — no signup, no credit card. SpaceXAI's Grok 4.3 (batch) runs in your browser on Rewind.ai, with pay-as-you-go tokens and full API access.

What is Grok 4.3 (batch)?

Grok 4.3 is a reasoning model from SpaceXAI. It accepts text and image inputs with text output, and is suited for agentic workflows, instruction-following tasks, and applications requiring high factual.

How does Grok 4.3 (batch) work?

Type your message in the box above and Grok 4.3 (batch) replies instantly — no setup required. Your chat history is saved locally in your browser; sign up free to sync it across devices and get an extra 10,000 tokens. You can switch between Grok 4.3 (batch) and other models at any time from the picker at the top.

Is Grok 4.3 (batch) free?

Grok 4.3 (batch) is pay-as-you-go at $1.00/M input tokens, but you can use it without paying: every visitor gets 2,500 free tokens a day with no sign up, and a free account raises that to 5,000.