Meta vs 
xAI
Verdict
- Meta's flagship leads: Muse Spark at 65.4 vs Grok 4.6 at 63.8.
- Meta has the better model in 3 of 4 price bands.
- Meta's fastest ranked model (Muse Spark 1.2, 219 tok/s) beats xAI's (Grok 4.3, 113 tok/s).
- Meta publishes more open-weights models (14 vs 0).
- Meta ships more often: one model every 27 days against every 42.
Best model per price band
Each provider’s highest-index model below the price ceiling. Purple marks the winner of the band.
| Price band | Meta | xAI |
|---|---|---|
| Under $0.50/M | Llama 4 Maverick 42.6$0.400/M | – |
| Under $2/M | Muse Glimmer (high) 55.1$0.638/M | Grok 4.3 medium 60.7$1.56/M |
| Under $10/M | Muse Spark 1.1 64.9$2.00/M | Grok 4.6 medium 63.8$3.00/M |
| Any price | Muse Spark 1.1 64.9$2.00/M | Grok 4.6 medium 63.8$3.00/M |
Line-up
| Metric | Meta | xAI |
|---|---|---|
| Flagship index | 65.4 | 63.8 |
| Ranked models | 21 | 14 |
| Open-weights models | 14 | 0 |
| Cheapest ranked, $/M | $0.053 | $1.25 |
| Fastest ranked, tok/s | 219 | 113 |
| Release cadence, days | 27 | 42 |
| Last release | 2 Sept 2026 | 12 Aug 2026 |
| Next expected | 18 Sept 2026 – 9 Oct 2026 | 6 Sept 2026 – 9 Oct 2026 |