o3 Mini High

openai/o3-mini-high

OpenAI o3-mini-high is the same model as [o3-mini](/openai/o3-mini) with reasoning_effort set to high. o3-mini is a cost-efficient language model optimized for STEM reasoning tasks, particularly excelling in science, mathematics, and...

InputFileText
OutputText
Input / Outputclub$1.166 / $4.664per 1M tokens · USD
Context window200Ktoken
Maximum output100Ktoken

Pricing

Current model usage rates. Choose your plan to see its published prices.

Pricing
UsagePricing
InputUS$1.166/ 1M token
Cache readUS$0.583/ 1M token
OutputUS$4.664/ 1M token

Membership and model usage are billed separately. Compare plans

Capabilities

Input
FileText
Output
Text
Context window
200,000 token
Maximum output
100,000 token
Reasoning
high

Providers

Model supply available through Vecbase.

Via OpenRouter

Access is subject to your account’s permissions and model availability.

Frequently asked questions

What is o3 Mini High, and who develops it?

o3 Mini High is a model from OpenAI. Its model ID on Vecbase is openai/o3-mini-high. OpenAI o3-mini-high is the same model as [o3-mini](/openai/o3-mini) with reasoning_effort set to high. o3-mini is a cost-efficient language model optimized for STEM reasoning tasks, particularly excelling in science, mathematics, and...

How much does o3 Mini High cost on Vecbase?

For o3 Mini High, the Club plan lists USD 1.166 per 1 million input tokens and USD 4.664 per 1 million output tokens, as of 10/22/2026, 9:25:16 PM UTC. See the pricing table for cache rates, input-length tiers and other usage types. Membership fees are separate.

How many tokens fit in o3 Mini High’s context window?

o3 Mini High has a context window of 200,000 tokens. Input and output must fit within the limits of the API you use.

What is the maximum output length for o3 Mini High?

o3 Mini High can generate up to 100,000 tokens per response. Your API or request settings may set a lower limit.

Can o3 Mini High call tools in an agent workflow?

Yes. o3 Mini High supports tool calling. Your application provides the tool definitions and runs the tools the model requests.

Does o3 Mini High support structured outputs?

Yes. o3 Mini High supports structured output. Set the required format in your API request and check the returned data before using it.

Which input and output formats does o3 Mini High support?

o3 Mini High accepts File and Text and produces Text.

Which providers make o3 Mini High available through Vecbase?

Vecbase offers o3 Mini High through OpenRouter. Availability may vary by provider.

Which model ID should an agent use to request o3 Mini High?

Use openai/o3-mini-high as the model identifier for o3 Mini High. See Vecbase’s API documentation for authentication, required inputs and supported request formats.

Which reasoning settings are listed for o3 Mini High?

o3 Mini High supports these reasoning levels: high. Available options depend on your API.

What does an agent need to access o3 Mini High through Vecbase?

To use o3 Mini High, you need an authenticated account with the required permissions, sufficient balance and the relevant capability enabled. See the documentation for setup.

Is a release date available for o3 Mini High?

We do not yet have a confirmed release date for o3 Mini High.

Which models can I compare with o3 Mini High on Vecbase?

You can compare o3 Mini High with GPT Mini Latest (openai/gpt-mini-latest), GPT-5.5 (openai/gpt-5.5), and GPT-5.6 Luna (openai/gpt-5.6-luna). Check their capabilities and prices to find the best fit for your task.