4models tracked · ranked by intelligence, speed & price
xAI's smartest model is Grok 4.3 (53.2 on the Intelligence Index), its fastest is Grok 4.20 Multi-Agent at 354 tokens/sec, and its cheapest is Grok Build 0.1 at $1.00 per million input tokens. All 4 xAI models are compared below by intelligence, speed, latency, context and price.
| Model | Intel | Speed | Latency | In $/M | Context |
|---|---|---|---|---|---|
| grok-4.3 ReasoningToolsJSON+1 | 53.2 | 148 | 667ms | $1.25 | 1M |
| grok-4.20 ReasoningToolsJSON+1 | 48.5 | 14 | 608ms | $1.25 | 2M |
| grok-build-0.1 ReasoningToolsJSON+1 | — | 125 | 822ms | $1.00 | 256K |
| grok-4.20-multi-agent ReasoningJSONVision | — | 354 | 20.3s | $1.25 | 2M |