Moonshot AI vs 
SpaceXAI
Verdict
- Moonshot AI's flagship leads: Kimi K3 at 67.1 vs Grok 4.6 at 66.0.
- Moonshot AI has the better model in 3 of 4 price bands.
- SpaceXAI's fastest ranked model (Grok 4.20 Multi-Agent, 304 tok/s) beats Moonshot AI's (Kimi K2 Thinking, 123 tok/s).
- Moonshot AI publishes more open-weights models (9 vs 1).
- SpaceXAI ships more often: one model every 42 days against every 62.
Best model per price band
Each provider’s highest-index model below the price ceiling. Purple marks the winner of the band.
Line-up
| Metric | Moonshot AI | SpaceXAI |
|---|---|---|
| Flagship index | 67.1 | 66.0 |
| Ranked models | 9 | 16 |
| Open-weights models | 9 | 1 |
| Cheapest ranked, $/M | $1.00 | $1.25 |
| Fastest ranked, tok/s | 123 | 304 |
| Release cadence, days | 62 | 42 |
| Last release | 16 Jul 2026 | 21 Sept 2026 |
| Next expected | 22 Aug 2026 – 10 Oct 2026 | 16 Oct 2026 – 18 Nov 2026 |
Data as of 21 Sept 2026. See Moonshot AI and SpaceXAI in full.