xAI · closed · 2026-04

Grok 4.3

not ranked n/a
the take

Cheap, fast, and genuinely good at tool use. Off the board because xAI now publishes almost nothing you can compare, leaning on their own agentic metrics instead. Trust it for agents, verify everything else.

Not ranked: xAI doesn't publish enough comparable public benchmarks to place it fairly. How ranking works.

benchmarks
specs
Context
1M
Input
$1.25/M
Output
$2.5/M
Speed
114 tok/s
Modality
text, image
strengths
  • Best-in-family agentic tool-calling
  • Very low price for a frontier model
  • Strong instruction-following, 1M context
weaknesses
  • No standard academic per-benchmark scores
  • Non-hallucination slipped vs Grok 4.20
  • Below GPT-5.5 / Gemini on the intelligence index

Sources: [1][2]