What is O3 Mini High?
O3 Mini High is a chat model from openai (slug: openai-o3-mini-high). Pick O3 Mini High for multi-step reasoning jobs, not as a cheap chat default. o-series models spend more output tokens.
Catalog snapshot 2026-06-27.
O3 Mini High is listed in the o10 fulfillment catalog as of 2026-06-27. OpenAI publishes this model without a published context window in this snapshot. o10 lists O3 Mini High on OpenRouter at routing band C3. API slug openai-o3-mini-high. 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.
O3 Mini High. Specs, hosts, and routing
Snapshot
No list price in snapshot
Spec
openai · context varies by host · band C3
On this page
AnswersSelf-contained
When should you pick O3 Mini High?
Pick O3 Mini High for multi-step reasoning jobs, not as a cheap chat default. o-series models spend more output tokens. O3 Mini High is a reasoning SKU. Prefer GPT-4o or GPT-5 mini for ordinary chat unless evals require the o-series.
How does O3 Mini High differ from sibling models?
O3 Mini High is a reasoning SKU. Prefer GPT-4o or GPT-5 mini for ordinary chat unless evals require the o-series.
How much does O3 Mini High cost per million tokens?
O3 Mini High 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 O3 Mini High?
O3 Mini High is configured on OpenRouter. Known host IDs: openrouter: openrouter/openai/o3-mini-high. This model is routable through o10 eval-gated routing.
What is O3 Mini High's context window?
O3 Mini High context limits depend on the fulfillment host. Check the specifications table for endpoint-specific limits.
What o10 routing band is O3 Mini High?
O3 Mini High is classified at o10 routing band C3. Bands group models by cost tier and eval profile: C0 (economy), C1 (standard), C2 (capable), C3/C4 (frontier). Production routing is enabled for this slug.
Who makes O3 Mini High?
O3 Mini High is attributed to source provider openai in the o10 catalog. Fulfillment hosts (OpenRouter) supply API access; list pricing may differ by venue.
01Deep dive
Specifications
O3 Mini High in the o10 unified catalog.
| Field | Value |
|---|---|
| o10 slug | `openai-o3-mini-high` |
| Type | text |
| Band | C3 |
| Routable | Yes |
| Source provider | openai |
| Primary host | OpenRouter |
02Deep dive
Fulfillment hosts
Upstream venues configured for O3 Mini High.
| Host | Upstream model ID |
|---|---|
| openrouter | openrouter/openai/o3-mini-high |
03Deep dive
Routing with o10
Eval-gated model selection for this slug.
o10 slug: openai-o3-mini-high. Band: C3. Routable: yes.
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 O3 Mini High cost?
O3 Mini High has no published per-token price in the current gateway snapshot. Use the fulfillment hosts table to identify available venues.
What is O3 Mini High's context window?
Context limits for O3 Mini High vary by fulfillment host. See the specifications table on this page.
Which hosts serve O3 Mini High?
O3 Mini High (openai-o3-mini-high) is configured on: OpenRouter. Upstream model IDs are listed in the fulfillment routes section.
Is O3 Mini High routable through o10?
Yes. O3 Mini High is routable at band C3. Send model: "openai-o3-mini-high" or use an o10 smart routing alias.
How do I call O3 Mini High via o10?
Use o10 slug "openai-o3-mini-high" in the model field. See /models/routing for smart aliases (o10/auto, o10/frontier, o10/squad).
How does o10 route this model?
o10 routes O3 Mini High only when per-use-case evals clear at your quality floor. Band C3 indicates cost tier. See /kyi for governance and /models/routing for smart aliases.