ByteDance vs 
SpaceXAI
Verdict
- SpaceXAI's flagship leads: Grok 4.6 at 60.5 vs Dola Seed 2.0 Pro at 58.4.
- 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 ByteDance's (Seed-OSS-36B-Instruct, 37 tok/s).
- SpaceXAI ships more often: one model every 41 days against every 73.
Best model per price band
Each provider’s highest-index model below the price ceiling. Purple marks the winner of the band.
| Price band | ByteDance | SpaceXAI |
|---|---|---|
| Under $0.50/M | Seed-OSS-36B-Instruct 49.2$0.300/M | Grok 4.1 Fast thinking 55.6$0.275/M |
| Under $2/M | Seed-OSS-36B-Instruct 49.2$0.300/M | Grok 4.20 thinking 58.4$1.56/M |
| Under $10/M | Seed-OSS-36B-Instruct 49.2$0.300/M | Grok 4.6 high 60.5$3.00/M |
| Any price | Seed-OSS-36B-Instruct 49.2$0.300/M | Grok 4.6 high 60.5$3.00/M |
Line-up
| Metric | ByteDance | SpaceXAI |
|---|---|---|
| Flagship index | 58.4 | 60.5 |
| Ranked models | 2 | 15 |
| Open-weights models | 1 | 1 |
| Cheapest ranked, $/M | $0.300 | $0.275 |
| Fastest ranked, tok/s | 37 | 347 |
| Release cadence, days | 73 | 41 |
| Last release | 2 Nov 2026 | 21 Sep 2026 |
| Next expected | 15 Dec 2026 – 12 Feb 2027 | 15 Oct 2026 – 17 Nov 2026 |