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OpenAI: 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...

Modalities

TextFiles / PDFText

In / out price

$1.1 / $4.4 per 1M

Context

200K

Released

Jan 31, 2025

Why use o3 Mini

  • Reads PDFs and other files
  • Step-by-step reasoning mode
  • Tool and function calling (agent-ready)
  • Structured (JSON) outputs

Pricing

Input$1.1 / 1M tokens
Output$4.4 / 1M tokens
Cached input (read)$0.55 / 1M tokens

List prices via OpenRouter, checked daily. Real cost depends on the provider and on reasoning tokens.

Cost calculator

Pick a task, set how often you run it, and compare what it costs on each model.

ModelPer runPer monthPer 1,000 runs
OpenAI: o3 Mini$0.0097$9.68$9.68

Estimates from list prices via OpenRouter; real bills vary by provider and reasoning tokens.

Will it fit? Context window simulator

Each square is about one page (500 words). Colored squares are your content; grey squares are free space in the model's context window.

Your content

  • Novel (90,000 words)

Total: about 120,000 tokens (≈ 90,226 words). Token counts are estimates.

Models

OpenAI: o3 Mini

200,000 tokens ≈ 301 pages

Fits: uses 60% of the window.

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