Grok 4.3 vs Grok 4.20 (Non-Reasoning)
Both have similar output pricing. Choose Grok 4.3 or Grok 4.20 (Non-Reasoning) based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Grok 4.3 | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| Provider | SpaceXAI | xAI |
| Input / 1M tokens | $1.25 | $1.25 |
| Output / 1M tokens | $2.50 | $2.50 |
| Context window | 1M | 1M |
| Parameters | — | — |
| Open weights | — | No |
| Released | — | Mar 2026 |
| LiveBench score | 67.4 | 37.9 |
| GPQA Diamond score | 88.8 | — |
| LMArena (Chatbot Arena) Elo score | 1397 | — |
| LMArena WebDev Elo score | 1357 | — |
| LMArena Vision Elo score | 1229 | — |
FAQ
Is Grok 4.3 or Grok 4.20 (Non-Reasoning) cheaper?
Grok 4.3 and Grok 4.20 (Non-Reasoning) have comparable output pricing.
Which has the larger context window, Grok 4.3 or Grok 4.20 (Non-Reasoning)?
Both models offer a similar context window.
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.