O3 costs $2.00/1M input tokens and $8.00/1M output tokens as of 2026-06-27. Openrouter publishes this model with a 200K tokens context window. o10 lists O3 on OpenAI at routing band C3. API slug 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 is a chat model from openrouter (slug: o3). Pick O3 when your evals pass at band C3 and the fulfillment hosts below are allowed venues. Published input pricing starts at $2.00/1M tokens. Context window: 200K tokens.
Catalog snapshot 2026-06-27.
When should you pick O3?
Pick O3 when your evals pass at band C3 and the fulfillment hosts below are allowed venues. O3 is the openrouter SKU in this catalog. Compare same-provider siblings before jumping labs.
How does O3 differ from sibling models?
O3 is the openrouter SKU in this catalog. Compare same-provider siblings before jumping labs.
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.
Where can you run O3?
O3 is configured on OpenAI. Known host IDs: openai: 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.
What o10 routing band is O3?
O3 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?
O3 is attributed to source provider openrouter in the o10 catalog. Fulfillment hosts (OpenAI) supply API access; list pricing may differ by venue.
01Deep dive
Specifications
O3 in the o10 unified catalog.
O3 specifications
Field
Value
o10 slug
`o3`
Type
text
Band
C3
Routable
Yes
Source provider
openrouter
Primary host
OpenAI
Gateway ID
`openai/o3`
Context window
200,000 tokens
Released
2025-04-16
02Deep dive
Token pricing
Gateway snapshot pricing for O3.
O3 token pricing
Unit
Price
Input
$2/1M tokens
Output
$8/1M tokens
03Deep dive
Fulfillment hosts
Upstream venues configured for O3.
O3 fulfillment routes
Host
Upstream model ID
openai
openai/o3
04Deep dive
Gateway provider endpoints
Endpoint-level pricing and latency from the gateway catalog.
O3 gateway endpoints
Provider
Input ($/1M)
Latency p50
Uptime 1d
openai
$2
592ms
9991.0%
05Deep dive
Routing with o10
Eval-gated model selection for this slug.
o10 slug: 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
Fulfillment catalog 2026-06-27. Gateway pricing joined where slug match exists.
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 (o3) is configured on: OpenAI. Upstream model IDs are listed in the fulfillment routes section.
Is O3 routable through o10?
Yes. O3 is routable at band C3. Send model: "o3" or use an o10 smart routing alias.
How do I call O3 via o10?
Use o10 slug "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.