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...
Tested on 13 benchmarks with 66.7% average. Top scores: Chatbot Arena Elo — Overall (1444.0%), Chatbot Arena Elo — Coding (1364.0%), LiveBench — Mathematics (84.3%).
gpt-oss-120b (free) scores 74.2 (99% as good) at $0.00/1M input · 100% cheaper
Regularly refreshed coding problems that avoid data contamination. New problems added monthly to prevent memorization.
LiveBench coding tasks that require multi-step reasoning and tool use. Tests planning and execution of complex coding workflows.
Regularly refreshed reasoning problems testing logical deduction, spatial reasoning, and analytical thinking.
Fresh data analysis tasks testing ability to interpret tables, charts, and statistical data.
Regularly updated math problems that test numerical reasoning, algebra, calculus, and combinatorics.
- Typemultimodal
- Context1.0M tokens (~500 books)
- ReleasedApr 2026
- LicenseProprietary
- StatusActive
- Cost / Message~$0.005