x-ai/grok-4.3
Grok 4.3 is a reasoning model from xAI. It accepts text and image inputs with text output, and is suited for agentic workflows, instruction-following tasks, and applications requiring high factual...
| Provider | In $/M | Out $/M | Context | Uptime |
|---|---|---|---|---|
| xAI | $1.25 | $2.50 | 1M | 100% |
Grok 4.3 costs $1.25 per million input tokens and $2.50 per million output tokens via OpenRouter, making it 218th cheapest of 298 paid models.
Grok 4.3 scores 53.2 on the Artificial Analysis Intelligence Index, ranking 11th of 178 benchmarked models, with a GPQA Diamond score of 90%.
Grok 4.3 generates around 132 tokens per second with 707ms time-to-first-token (p50), the 37th fastest tracked model.
Grok 4.3 supports a 1M-token context window. It accepts text, image input.