Amazon vs 
SpaceXAI
Verdict
- SpaceXAI's flagship leads: Grok 4.6 at 60.5 vs Nova 2.0 Pro Preview at 53.5.
- SpaceXAI has the better model in 4 of 4 price bands.
- SpaceXAI's fastest ranked model (Grok 4.20 Multi-Agent, 347 tok/s) beats Amazon's (Nova Micro, 220 tok/s).
- SpaceXAI publishes more open-weights models (1 vs 0).
- SpaceXAI ships more often: one model every 41 days against every 148.
Best model per price band
Each provider’s highest-index model below the price ceiling. Purple marks the winner of the band.
| Price band | Amazon | SpaceXAI |
|---|---|---|
| Under $0.50/M | Nova Micro 39.2$0.065/M | Grok 4.1 Fast thinking 55.6$0.275/M |
| Under $2/M | Nova 2 Lite 48.8$0.935/M | Grok 4.20 thinking 58.4$1.56/M |
| Under $10/M | Nova 2.0 Pro Preview medium 53.5$3.44/M | Grok 4.6 high 60.5$3.00/M |
| Any price | Nova 2.0 Pro Preview medium 53.5$3.44/M | Grok 4.6 high 60.5$3.00/M |
Line-up
| Metric | Amazon | SpaceXAI |
|---|---|---|
| Flagship index | 53.5 | 60.5 |
| Ranked models | 6 | 15 |
| Open-weights models | 0 | 1 |
| Cheapest ranked, $/M | $0.065 | $0.275 |
| Fastest ranked, tok/s | 220 | 347 |
| Release cadence, days | 148 | 41 |
| Last release | 2 Dec 2025 | 21 Sep 2026 |
| Next expected | 28 Feb 2026 – 27 Jun 2026 | 15 Oct 2026 – 17 Nov 2026 |