How much does O3 cost per million tokens?
O3 costs $2.00/1M input tokens and $8.00/1M output tokens in the gateway catalog snapshot (2026-06-27). Endpoint pricing may differ by fulfillment host.
Sourced from gateway catalog snapshot.
O3 costs $2.00/1M input tokens and $8.00/1M output tokens as of 2026-06-27. OpenAI publishes this model with a 200K tokens context window. o10 lists O3 on OpenRouter at routing band C3. API slug openai-o3. 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 pricing. Input/output per 1M tokens
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AnswersSelf-contained
Where can you run O3?
O3 is configured on OpenRouter. Known host IDs: openrouter: openrouter/openai/o3. This model is routable through o10 eval-gated routing.
What is O3's context window?
O3 supports a 200K tokens context window in the gateway catalog snapshot. Context limits may vary by fulfillment host endpoint.
01Deep dive
Token pricing
Gateway snapshot pricing for O3.
| Unit | Price |
|---|---|
| Input | $2/1M tokens |
| Output | $8/1M tokens |
02Deep dive
Fulfillment hosts
Upstream venues configured for O3.
| Host | Upstream model ID |
|---|---|
| openrouter | openrouter/openai/o3 |
03Deep dive
Routing with o10
Eval-gated model selection for this slug.
o10 slug: openai-o3. Band: C3. Routable: yes.
See [/models/routing](/models/routing) for smart aliases (o10/auto, o10/frontier, o10/squad) and [/kyi](/kyi) for governance.
SourceMethodology
Gateway catalog snapshot 2026-06-27. Fulfillment catalog synced from o10 control plane. Verify list prices against openai and host providers.
FAQFrequently asked questions
Common questions
How much does O3 cost?
O3 costs $2.00/1M input tokens and $8.00/1M output tokens in the gateway snapshot (2026-06-27). Verify against your provider's published pricing.
What is O3's context window?
O3 supports 200K tokens in the gateway catalog snapshot. Host-specific endpoints may differ.
Which hosts serve O3?
O3 (openai-o3) is configured on: OpenRouter. Upstream model IDs are listed in the fulfillment routes section.
Is O3 routable through o10?
Yes. O3 is routable at band C3. Send model: "openai-o3" or use an o10 smart routing alias.
How do I call O3 via o10?
Use o10 slug "openai-o3" or gateway ID "openai/o3" depending on your integration. Gateway-compatible endpoints accept OpenAI-style /v1 requests.
How does o10 route this model?
o10 routes O3 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.