What is Rerank V4 0 Fast?
Rerank V4 0 Fast is a reranking model from openrouter (slug: rerank-v4-0-fast). Pick Rerank V4 0 Fast when your evals pass at band C0 and the fulfillment hosts below are allowed venues.
Catalog snapshot 2026-06-27.
Rerank V4 0 Fast is listed in the o10 fulfillment catalog as of 2026-06-27. Openrouter publishes this model without a published context window in this snapshot. o10 lists Rerank V4 0 Fast on Cohere at routing band C0. API slug rerank-v4-0-fast. Verify list prices against the venue you call.
Last updated: 2026-06-27. Full catalog. Reference prices are dated snapshots. Compare total cost and measured task quality before choosing a route.
Rerank V4 0 Fast. Specs, hosts, and routing
Snapshot
No list price in snapshot
Spec
openrouter · context varies by host · band C0
On this page
AnswersSelf-contained
When should you pick Rerank V4 0 Fast?
Pick Rerank V4 0 Fast when your evals pass at band C0 and the fulfillment hosts below are allowed venues. Rerank V4 0 Fast is the openrouter SKU in this catalog. Compare same-provider siblings before jumping labs.
How does Rerank V4 0 Fast differ from sibling models?
Rerank V4 0 Fast is the openrouter SKU in this catalog. Compare same-provider siblings before jumping labs.
How much does Rerank V4 0 Fast cost per million tokens?
Rerank V4 0 Fast does not have published per-token pricing in the current gateway snapshot. See fulfillment hosts below for routing options.
Pricing unavailable in current snapshot.
Where can you run Rerank V4 0 Fast?
Rerank V4 0 Fast is configured on Cohere. Known host IDs: cohere: cohere/rerank-v4.0-fast. This model is cataloged but not marked routable for chat routing.
What is Rerank V4 0 Fast's context window?
Rerank V4 0 Fast context limits depend on the fulfillment host. Check the specifications table for endpoint-specific limits.
What o10 routing band is Rerank V4 0 Fast?
Rerank V4 0 Fast is classified at o10 routing band C0. Bands group models by cost tier and eval profile: C0 (economy), C1 (standard), C2 (capable), C3/C4 (frontier). Chat routing is disabled for this slug.
Who makes Rerank V4 0 Fast?
Rerank V4 0 Fast is attributed to source provider openrouter in the o10 catalog. Fulfillment hosts (Cohere) supply API access; list pricing may differ by venue.
01Deep dive
Specifications
Rerank V4 0 Fast in the o10 unified catalog.
| Field | Value |
|---|---|
| o10 slug | `rerank-v4-0-fast` |
| Type | rerank |
| Band | C0 |
| Routable | No |
| Source provider | openrouter |
| Primary host | Cohere |
02Deep dive
Fulfillment hosts
Upstream venues configured for Rerank V4 0 Fast.
| Host | Upstream model ID |
|---|---|
| cohere | cohere/rerank-v4.0-fast |
03Deep dive
Routing with o10
Eval-gated model selection for this slug.
o10 slug: rerank-v4-0-fast. Band: C0. Routable: no.
See [/models/routing](/models/routing) for smart aliases (o10/auto, o10/frontier, o10/squad) and [/kyi](/kyi) for governance.
SourceMethodology
Fulfillment catalog 2026-06-27. Gateway pricing joined where slug match exists.
FAQFrequently asked questions
Common questions
How much does Rerank V4 0 Fast cost?
Rerank V4 0 Fast has no published per-token price in the current gateway snapshot. Use the fulfillment hosts table to identify available venues.
What is Rerank V4 0 Fast's context window?
Context limits for Rerank V4 0 Fast vary by fulfillment host. See the specifications table on this page.
Which hosts serve Rerank V4 0 Fast?
Rerank V4 0 Fast (rerank-v4-0-fast) is configured on: Cohere. Upstream model IDs are listed in the fulfillment routes section.
Is Rerank V4 0 Fast routable through o10?
No. Rerank V4 0 Fast is cataloged but not enabled for chat routing in the current fulfillment config.
How do I call Rerank V4 0 Fast via o10?
Use o10 slug "rerank-v4-0-fast" in the model field. See /models/routing for smart aliases (o10/auto, o10/frontier, o10/squad).
How does o10 route this model?
o10 routes Rerank V4 0 Fast only when per-use-case evals clear at your quality floor. Band C0 indicates cost tier. See /kyi for governance and /models/routing for smart aliases.