MBZUAI vs 
OpenAI
Verdict
- OpenAI's flagship leads: GPT-6 Astra at 70.4 vs K2 Horizon 375B A23B at 56.3.
- OpenAI has the better model in 4 of 4 price bands.
- MBZUAI's fastest ranked model (K2 Horizon 375B A23B, 879 tok/s) beats OpenAI's (gpt-oss-120b, 233 tok/s).
- MBZUAI publishes more open-weights models (6 vs 3).
Best model per price band
Each provider’s highest-index model below the price ceiling. Purple marks the winner of the band.
| Price band | MBZUAI | OpenAI |
|---|---|---|
| Under $0.50/M | – | GPT-6 Luna max 60.0$0.200/M |
| Under $2/M | – | GPT-6 Luna max 60.0$0.200/M |
| Under $10/M | – | GPT-6.1 Sol max 69.9$4.00/M |
| Any price | – | GPT-6 Astra max 70.4$20.00/M |
Line-up
| Metric | MBZUAI | OpenAI |
|---|---|---|
| Flagship index | 56.3 | 70.4 |
| Ranked models | 6 | 44 |
| Open-weights models | 6 | 3 |
| Cheapest ranked, $/M | – | $0.093 |
| Fastest ranked, tok/s | 879 | 233 |
| Release cadence, days | – | 22 |
| Last release | – | 29 Sept 2026 |
| Next expected | – | 12 Oct 2026 – 29 Oct 2026 |