Anthropic vs 
MBZUAI
Verdict
- Anthropic's flagship leads: Claude Opus 5.5 at 72.6 vs K2 Horizon 375B A23B at 56.3.
- Anthropic has the better model in 4 of 4 price bands.
- MBZUAI's fastest ranked model (K2 Horizon 375B A23B, 879 tok/s) beats Anthropic's (Claude Haiku 5.5, 186 tok/s).
- MBZUAI publishes more open-weights models (6 vs 0).
Best model per price band
Each provider’s highest-index model below the price ceiling. Purple marks the winner of the band.
| Price band | Anthropic | MBZUAI |
|---|---|---|
| Under $0.50/M | Claude Haiku 5.5 xhigh 61.5$0.200/M | – |
| Under $2/M | Claude Haiku 5.5 xhigh 61.5$0.200/M | – |
| Under $10/M | Claude Opus 5.5 max 72.6$8.00/M | – |
| Any price | Claude Opus 5.5 max 72.6$8.00/M | – |
Line-up
| Metric | Anthropic | MBZUAI |
|---|---|---|
| Flagship index | 72.6 | 56.3 |
| Ranked models | 23 | 6 |
| Open-weights models | 0 | 6 |
| Cheapest ranked, $/M | $0.200 | – |
| Fastest ranked, tok/s | 186 | 879 |
| Release cadence, days | 39 | – |
| Last release | 7 Oct 2026 | – |
| Next expected | 30 Oct 2026 – 30 Nov 2026 | – |