grok-4.3
Grok 4.3, released in May 2026, is an inference model launched by xAI before xAI was merged into SpaceX and renamed SpaceXAI. It is positioned as a general flagship for complex tasks such as advanced logic, mathematics, scientific analysis and multi-step investigation. Compared with the previous generation Grok 4.20, the architecture of Grok 4.3 has been improved, the context window has been expanded to 1 million Tokens, and the knowledge deadline is December 2025. The model supports text and image input, text output, and has the ability to function calls, structured output, and cache input tokens.
- Context
- 1000000 tokens
- Max output
- 128000 tokens
- Input
- llm image
- Output
- llm
Pricing
Input: $1.25 / 1M tokens
Output: $2.5 / 1M tokens
Cached input: $0.2 / 1M tokens
Endpoints
- openai
- openai-response