gemini-2.5-flash-preview-09-2025 vs Grok 4.3
Both have similar output pricing. Choose gemini-2.5-flash-preview-09-2025 or Grok 4.3 based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | gemini-2.5-flash-preview-09-2025 | Grok 4.3 |
|---|---|---|
| Provider | 302.AI | SpaceXAI |
| Input / 1M tokens | $0.30 | $1.25 |
| Output / 1M tokens | $2.50 | $2.50 |
| Context window | 1M | 1M |
| Parameters | — | — |
| Open weights | No | — |
| Released | Sep 2025 | — |
| LMArena (Chatbot Arena) Elo score | 1406 | 1397 |
| LMArena Vision Elo score | 1253 | 1229 |
| LiveBench score | — | 67.4 |
| LMArena WebDev Elo score | — | 1357 |
| GPQA Diamond score | — | 88.8 |
FAQ
Is gemini-2.5-flash-preview-09-2025 or Grok 4.3 cheaper?
gemini-2.5-flash-preview-09-2025 and Grok 4.3 have comparable output pricing.
Which has the larger context window, gemini-2.5-flash-preview-09-2025 or Grok 4.3?
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.