o3 Mini

openai/o3-mini

OpenAI o3-mini is a cost-efficient language model optimized for STEM reasoning tasks, particularly excelling in science, mathematics, and coding. This model supports the `reasoning_effort` parameter, which can be set to...

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

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, and who develops it?

o3 Mini is a model from OpenAI. Its model ID on Vecbase is openai/o3-mini. OpenAI o3-mini is a cost-efficient language model optimized for STEM reasoning tasks, particularly excelling in science, mathematics, and coding. This model supports the `reasoning_effort` parameter, which can be set to...

How much does o3 Mini cost on Vecbase?

For o3 Mini, 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, 10:14:07 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’s context window?

o3 Mini 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?

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

Can o3 Mini call tools in an agent workflow?

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

Does o3 Mini support structured outputs?

Yes. o3 Mini 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 support?

o3 Mini accepts File and Text and produces Text.

Which providers make o3 Mini available through Vecbase?

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

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

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

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

To use o3 Mini, 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?

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

Which models can I compare with o3 Mini on Vecbase?

You can compare o3 Mini 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.