BenchLeader

MBZUAI vs SpaceXAI

Verdict
  • SpaceXAI's flagship leads: Grok 4.6 at 66.0 vs K2 Horizon 375B A23B at 57.5.
  • SpaceXAI has the better model in 3 of 4 price bands.
  • MBZUAI publishes more open-weights models (6 vs 1).

Best model per price band

Each provider’s highest-index model below the price ceiling. Purple marks the winner of the band.

Price bandMBZUAISpaceXAI
Under $0.50/M
Under $2/MGrok 4.20 thinking 59.9$1.56/M
Under $10/MGrok 4.6 medium 66.0$3.00/M
Any priceGrok 4.6 medium 66.0$3.00/M

Line-up

MetricMBZUAISpaceXAI
Flagship index57.566.0
Ranked models616
Open-weights models61
Cheapest ranked, $/M$1.25
Fastest ranked, tok/s304
Release cadence, days42
Last release21 Sept 2026
Next expected16 Oct 2026 – 18 Nov 2026

Data as of 21 Sept 2026. See MBZUAI and SpaceXAI in full.