Alex Getmanearly AI signals

O3 Mini

OpenAI

Released Updated
Context window
200K
200,000 tokens
Max output
100K
100,000 tokens
Input / Output
text → text

Timeline

  1. · Product update · evidence link
  1. · Confirmed use · OpenAI · official articles · Introducing GPT-5 for developers
  2. · Catalogue listing · GitHub · openai/openai-python · code
    Excerpt
    "name": "Push Notification Summary Grader", "id": "Push Notification Summary Grader-9b876f24-4762-4be9-aff4-db7a9b31c673", "type": "label_model", "model": "o3-mini", "input": [ { "type": "message", "role": "developer", "content": { "type": "input_text", "text": "\nLabel the following push notification summary as either correct or incorrect.\nThe push notification and the summary will be provided below.\nA good push notificiation summary is concise and snappy.\nIf it is good, then label it as correct, if not, then incorrect.\n" } }, {

    This code reference does not establish a working model identifier.

Evidence links

Signals 1

Specifications

O3 Mini is a model from OpenAI, released on 31 Jan 2025. The context window is 200,000 tokens. The maximum output is 100,000 tokens.

Context window
200,000
Max output
100,000
Input
text
Output
text

Questions

What is the context window of O3 Mini?

The context window is 200,000 tokens. The maximum output is 100,000 tokens.

When was O3 Mini released?

On 31 Jan 2025.