Grok 4.20 (0309) Reasoning vs Grok 4.3
Grok 4.20 (0309) Reasoning and Grok 4.3 are both xAI models. Grok 4.20 (0309) Reasoning (xAI) is $1.56/1M blended, 1M context. Grok 4.3 (xAI) is $1.56/1M blended, 1M context.
Last verified: 13 Aug 2026 · prices from official provider documentation
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| Spec | Grok 4.20 (0309) Reasoning | Grok 4.3 |
|---|---|---|
| Provider | xAI | xAI |
| Status | GA | GA |
| Input $/1M | $1.25 | $1.25 |
| Output $/1M | $2.50 | $2.50 |
| Blended $/1M | $1.56 | $1.56 |
| Context | 1M | 1M |
| Max output | — | — |
| Cutoff | — | — |
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