Model decision surface
Compare AI models
Start with K2 Horizon 375B A23B and GLM 5.3 Flash, or choose any two current ranked language models. Compare capability evidence, price, context, provider availability, and weight access without pretending one field decides every use case.
Current public data
K2 Horizon 375B A23B vs GLM 5.3 Flash
Live dataset updated 9/13/2026, 2:40:29 PM UTC
Open 1200×630 evidence receipt| Field | GLM 5.3 Flash Z.ai | |
|---|---|---|
| ModelCap position | #30 | #10 |
| Index score | 67.3 | 78.5 |
| Evidence | Estimatedglobal-corpus-prior over 186 held-out anchors (21%); launch card against 6 resolved peers on 11 rows (79%); optimism haircut 0 from cross-lab-probe; shrunk 4.1 toward the measured corpus | Measured4 public benchmark observations across 4 boards |
| Input / 1M | Unavailable | $0.15 |
| Output / 1M | Unavailable | $0.50 |
| Pricing status | unavailable | fresh |
| Context | — | 1.3M |
| Providers | 0 | 26 |
| Weight access | Open weights | Open weights |
Decision facts
- K2 Horizon 375B A23B is #30; GLM 5.3 Flash is #10 on the same current language board.
- Index scores are 67.3 for K2 Horizon 375B A23B and 78.5 for GLM 5.3 Flash. Their published uncertainty intervals overlap, so the rank difference alone does not establish a reliable capability advantage for your workload.
- Evidence differs: K2 Horizon 375B A23B is Estimated; GLM 5.3 Flash is Measured.
- ModelCap currently lists 0 providers for K2 Horizon 375B A23B and 26 for GLM 5.3 Flash.
These are separate published fields, not a synthetic winner. ModelCap does not collapse price, access, context, and capability evidence into a hidden recommendation score.
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Each comparison page is a permanent, shareable URL with the same live figures as this tool: ModelCap Index position, API pricing, context window, provider count, weight access and every shared benchmark board.