xAI / Grok · 4 models on OpenRouter
Best xAI / Grok Models (2026)
Grok 4, Grok 3, and the full xAI lineup compared. xAI's Grok models have rapidly improved and now compete with top-tier models on coding and reasoning tasks.
Top xAI / Grok models by benchmark
| # | Model | Score | In / 1M | Out / 1M | Context | |
|---|---|---|---|---|---|---|
| 1 | xAI: Grok Build 0.1 | 100 | $1.00 | $2.00 | 256,000 | Details |
| 2 | xAI: Grok 4.3 | 100 | $1.25 | $2.50 | 1,000,000 | Details |
| 3 | xAI: Grok 4.20 | 100 | $1.25 | $2.50 | 2,000,000 | Details |
| 4 | xAI: Grok 4.20 Multi-Agent | 98 | $1.25 | $2.50 | 2,000,000 | Details |