Replacing Rerank v4 Fast?
Ranked replacement candidates, each shown with exactly what changes if you switch. Same-provider matches surface first because switching cost is lower; capability regressions are flagged in red.
Rerank v4 Fast
Rerank v4 Pro
| Field | Rerank v4 Fast | → | Rerank v4 Pro | Impact |
|---|---|---|---|---|
| Input price | — | → | — | Not verified for either model |
| Output price | — | → | — | Not verified for either model |
| Context window | 32K tokens | → | 32K tokens | Same capacity |
| Lifecycle | Active | → | Active | Same status |
How candidates are ranked
Candidates are ranked by how much of the source model's profile each one preserves — weighing switching cost (same provider or model family surface first), capability parity (what you keep versus what you'd lose), context window, and pricing direction. A candidate that is itself deprecated is pushed down the list; one that's already retired is never recommended.
Ranking is purely algorithmic — no editorial weighting, no paid placement. Every value is pulled from each provider's own documentation; click any model name to see the source-linked detail.