GPT-4o costs $2.50/1M input tokens and $10.00/1M output tokens as of 2026-06-27. OpenAI publishes this model with a 128K tokens context window. o10 lists GPT-4o on OpenRouter at routing band C2. API slug openai-gpt-4o. 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.
GPT-4o is a chat model from openai (slug: openai-gpt-4o). Pick GPT-4o when you need OpenAI's general chat/vision family at this generation. It is the named GPT SKU, not a reasoning-only o-series model. Published input pricing starts at $2.50/1M tokens. Context window: 128K tokens.
Catalog snapshot 2026-06-27.
When should you pick GPT-4o?
Pick GPT-4o when you need OpenAI's general chat/vision family at this generation. It is the named GPT SKU, not a reasoning-only o-series model. GPT-4o has cheaper mini/nano siblings for high-volume work. Pin the full SKU only when evals fail on the smaller tier.
How does GPT-4o differ from sibling models?
GPT-4o has cheaper mini/nano siblings for high-volume work. Pin the full SKU only when evals fail on the smaller tier.
How much does GPT-4o cost per million tokens?
GPT-4o costs $2.50/1M input tokens and $10.00/1M 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 GPT-4o?
GPT-4o is configured on OpenRouter. Known host IDs: openrouter: openrouter/openai/gpt-4o. This model is routable through o10 eval-gated routing.
What is GPT-4o's context window?
GPT-4o supports a 128K tokens context window in the gateway catalog snapshot. Context limits may vary by fulfillment host endpoint.
What o10 routing band is GPT-4o?
GPT-4o is classified at o10 routing band C2. 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 GPT-4o?
GPT-4o 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
GPT-4o in the o10 unified catalog.
GPT-4o specifications
Field
Value
o10 slug
`openai-gpt-4o`
Type
text
Band
C2
Routable
Yes
Source provider
openai
Primary host
OpenRouter
Gateway ID
`openai/gpt-4o`
Context window
128,000 tokens
Released
2024-05-13
02Deep dive
Token pricing
Gateway snapshot pricing for GPT-4o.
GPT-4o token pricing
Unit
Price
Input
$2.5/1M tokens
Output
$10/1M tokens
03Deep dive
Fulfillment hosts
Upstream venues configured for GPT-4o.
GPT-4o fulfillment routes
Host
Upstream model ID
openrouter
openrouter/openai/gpt-4o
04Deep dive
Gateway provider endpoints
Endpoint-level pricing and latency from the gateway catalog.
GPT-4o gateway endpoints
Provider
Input ($/1M)
Latency p50
Uptime 1d
azure
$2.5
353ms
9999.2%
openai
$2.5
567ms
9998.5%
05Deep dive
Routing with o10
Eval-gated model selection for this slug.
o10 slug: openai-gpt-4o. Band: C2. 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.
GPT-4o costs $2.50/1M input tokens and $10.00/1M output tokens in the gateway snapshot (2026-06-27). Verify against your provider's published pricing.
What is GPT-4o's context window?
GPT-4o supports 128K tokens in the gateway catalog snapshot. Host-specific endpoints may differ.
Which hosts serve GPT-4o?
GPT-4o (openai-gpt-4o) is configured on: OpenRouter. Upstream model IDs are listed in the fulfillment routes section.
Is GPT-4o routable through o10?
Yes. GPT-4o is routable at band C2. Send model: "openai-gpt-4o" or use an o10 smart routing alias.
How do I call GPT-4o via o10?
Use o10 slug "openai-gpt-4o" or gateway ID "openai/gpt-4o" depending on your integration. Gateway-compatible endpoints accept OpenAI-style /v1 requests.
How does o10 route this model?
o10 routes GPT-4o only when per-use-case evals clear at your quality floor. Band C2 indicates cost tier. See /kyi for governance and /models/routing for smart aliases.
What is the API model ID for GPT-4o?
The o10 slug is "openai-gpt-4o"; the unified gateway ID is "openai/gpt-4o". Host IDs: openrouter: openrouter/openai/gpt-4o. Pricing snapshot date: 2026-06-27.
Who hosts GPT-4o?
GPT-4o is hosted as openrouter: openrouter/openai/gpt-4o. o10 maps those upstream IDs to slug "openai-gpt-4o".