o3 Mini High
VerifiedOpenAI's multimodal model for large-scale text and file reasoning.
About o3 Mini High
o3 Mini High was developed by OpenAI as a proprietary system. It combines multimodal input handling with an extensive context capacity. The architecture supports both text and file modalities without public weight access.
Its design emphasizes efficient processing of lengthy documents and mixed media. Users leverage it for tasks requiring sustained context across large inputs. The model remains accessible only through OpenAI's controlled interfaces.
Capabilities
How o3 Mini High compares
o3 Mini High (striped bar) vs other multimodal on intelligence, speed and price.
Price
USD per 1M output tokens · Lower is better · o3 Mini High ranks #71 of 124
Sources: Artificial Analysis (intelligence, speed) · OpenRouter (price).
Best for
Long Document Analysis with Visuals
Processes extended reports or research papers up to 200,000 tokens that incorporate charts, diagrams, and images for integrated understanding.
Extended Multimodal Reasoning
Handles complex tasks requiring sustained context across text and visual elements, such as detailed scene interpretation in lengthy sequences.
Large-Scale Content Review
Reviews extensive multimodal materials like presentations or datasets in one pass while maintaining coherence across 200,000 tokens.
Strengths & limitations
Strengths
- +Strong STEM and coding performance
- +Efficient reasoning with lower latency
- +Handles 200k token contexts effectively
- +Transparent chain-of-thought traces
Limitations
- –Limited creative or narrative writing
- –No native image or audio understanding
- –No real-time web or tool use
Cost calculator
Estimate what o3 Mini High would cost for your usage.
Based on o3 Mini High's $1.10/1M input · $4.40/1M output. Estimate only — actual cost varies by provider and caching.
Quick start
OpenRouter's API is OpenAI-compatible — most SDKs work by just swapping the base URL. Only the model slug changes between models.
import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://openrouter.ai/api/v1",
apiKey: process.env.OPENROUTER_API_KEY,
});
const completion = await client.chat.completions.create({
model: "openai/o3-mini-high",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(completion.choices[0].message.content);Model slug: openai/o3-mini-high
Editor's verdict
o3 Mini High is OpenAI's proprietary multimodal with a 200K-token context window.
At $4.40 per 1M output tokens, it is mid-priced for its class.
It is available through OpenAI's API and aggregators like OpenRouter.
Best suited to strong stem and coding performance and efficient reasoning with lower latency.
Frequently asked questions
The model supports a context length of 200,000 tokens as specified by OpenAI.
User reviews
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