How much does GPT-5 cost per million tokens?
GPT-5 costs $1.25/1M 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.
GPT-5 costs $1.25/1M input tokens and $10.00/1M output tokens as of 2026-06-27. OpenAI publishes this model with a 400K tokens context window. o10 lists GPT-5 on OpenRouter at routing band C1. API slug openai-gpt-5. 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-5 pricing. Input/output per 1M tokens
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AnswersSelf-contained
Where can you run GPT-5?
GPT-5 is configured on OpenRouter. Known host IDs: openrouter: openrouter/openai/gpt-5. This model is routable through o10 eval-gated routing.
What is GPT-5's context window?
GPT-5 supports a 400K tokens context window in the gateway catalog snapshot. Context limits may vary by fulfillment host endpoint.
01Deep dive
Token pricing
Gateway snapshot pricing for GPT-5.
| Unit | Price |
|---|---|
| Input | $1.25/1M tokens |
| Output | $10/1M tokens |
02Deep dive
Fulfillment hosts
Upstream venues configured for GPT-5.
| Host | Upstream model ID |
|---|---|
| openrouter | openrouter/openai/gpt-5 |
03Deep dive
Routing with o10
Eval-gated model selection for this slug.
o10 slug: openai-gpt-5. Band: C1. 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 GPT-5 cost?
GPT-5 costs $1.25/1M 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-5's context window?
GPT-5 supports 400K tokens in the gateway catalog snapshot. Host-specific endpoints may differ.
Which hosts serve GPT-5?
GPT-5 (openai-gpt-5) is configured on: OpenRouter. Upstream model IDs are listed in the fulfillment routes section.
Is GPT-5 routable through o10?
Yes. GPT-5 is routable at band C1. Send model: "openai-gpt-5" or use an o10 smart routing alias.
How do I call GPT-5 via o10?
Use o10 slug "openai-gpt-5" or gateway ID "openai/gpt-5" depending on your integration. Gateway-compatible endpoints accept OpenAI-style /v1 requests.
How does o10 route this model?
o10 routes GPT-5 only when per-use-case evals clear at your quality floor. Band C1 indicates cost tier. See /kyi for governance and /models/routing for smart aliases.
What is the API model ID for GPT-5?
The o10 slug is "openai-gpt-5"; the unified gateway ID is "openai/gpt-5". Host IDs: openrouter: openrouter/openai/gpt-5. Pricing snapshot date: 2026-06-27.
Who hosts GPT-5?
GPT-5 is hosted as openrouter: openrouter/openai/gpt-5. o10 maps those upstream IDs to slug "openai-gpt-5".