GPT-5 mini costs $0.250/1M input tokens and $2.00/1M output tokens as of 2026-06-27. OpenAI publishes this model with a 400K tokens context window. o10 lists GPT-5 mini on OpenRouter at routing band C0. API slug openai-gpt-5-mini. 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 mini is a chat model from openai (slug: openai-gpt-5-mini). Pick GPT-5 mini as the cheap OpenAI default for high-volume chat. It is the cost-cut sibling of the matching full GPT SKU. Published input pricing starts at $0.250/1M tokens. Context window: 400K tokens.
Catalog snapshot 2026-06-27.
When should you pick GPT-5 mini?
Pick GPT-5 mini as the cheap OpenAI default for high-volume chat. It is the cost-cut sibling of the matching full GPT SKU. GPT-5 mini trades some reasoning depth for price. Promote to the full GPT SKU when quality floor evals fail.
How does GPT-5 mini differ from sibling models?
GPT-5 mini trades some reasoning depth for price. Promote to the full GPT SKU when quality floor evals fail.
How much does GPT-5 mini cost per million tokens?
GPT-5 mini costs $0.250/1M input tokens and $2.00/1M 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-5 mini?
GPT-5 mini is configured on OpenRouter. Known host IDs: openrouter: openrouter/openai/gpt-5-mini. This model is routable through o10 eval-gated routing.
What is GPT-5 mini's context window?
GPT-5 mini supports a 400K tokens context window in the gateway catalog snapshot. Context limits may vary by fulfillment host endpoint.
What o10 routing band is GPT-5 mini?
GPT-5 mini is classified at o10 routing band C0. 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-5 mini?
GPT-5 mini 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-5 mini in the o10 unified catalog.
GPT-5 mini specifications
Field
Value
o10 slug
`openai-gpt-5-mini`
Type
text
Band
C0
Routable
Yes
Source provider
openai
Primary host
OpenRouter
Gateway ID
`openai/gpt-5-mini`
Context window
400,000 tokens
Released
2025-08-07
02Deep dive
Token pricing
Gateway snapshot pricing for GPT-5 mini.
GPT-5 mini token pricing
Unit
Price
Input
$0.25/1M tokens
Output
$2/1M tokens
03Deep dive
Fulfillment hosts
Upstream venues configured for GPT-5 mini.
GPT-5 mini fulfillment routes
Host
Upstream model ID
openrouter
openrouter/openai/gpt-5-mini
04Deep dive
Gateway provider endpoints
Endpoint-level pricing and latency from the gateway catalog.
GPT-5 mini costs $0.250/1M input tokens and $2.00/1M output tokens in the gateway snapshot (2026-06-27). Verify against your provider's published pricing.
What is GPT-5 mini's context window?
GPT-5 mini supports 400K tokens in the gateway catalog snapshot. Host-specific endpoints may differ.
Which hosts serve GPT-5 mini?
GPT-5 mini (openai-gpt-5-mini) is configured on: OpenRouter. Upstream model IDs are listed in the fulfillment routes section.
Is GPT-5 mini routable through o10?
Yes. GPT-5 mini is routable at band C0. Send model: "openai-gpt-5-mini" or use an o10 smart routing alias.
How do I call GPT-5 mini via o10?
Use o10 slug "openai-gpt-5-mini" or gateway ID "openai/gpt-5-mini" depending on your integration. Gateway-compatible endpoints accept OpenAI-style /v1 requests.
How does o10 route this model?
o10 routes GPT-5 mini only when per-use-case evals clear at your quality floor. Band C0 indicates cost tier. See /kyi for governance and /models/routing for smart aliases.
What is the API model ID for GPT-5 mini?
The o10 slug is "openai-gpt-5-mini"; the unified gateway ID is "openai/gpt-5-mini". Host IDs: openrouter: openrouter/openai/gpt-5-mini. Pricing snapshot date: 2026-06-27.
Who hosts GPT-5 mini?
GPT-5 mini is hosted as openrouter: openrouter/openai/gpt-5-mini. o10 maps those upstream IDs to slug "openai-gpt-5-mini".