OpenAI: o3 Pro (batch)

openai/o3-pro:batch · OpenAIUnmeasurable

Declared family: GPT
Declared tokenizer tag: GPT
Entered catalogue: 10 June 2025
Measurement: Variant: inherits its base model’s measurement
Evidence confidence: Unknown

This entry is a serving variant of OpenAI: o3 Pro. A variant shares its base model's tokenizer by construction, so the measurement lives on the base record and this page inherits it.

What we checked

Four different kinds of evidence, and what each one showed

We checked	What we found	Where it came from
How it counts tokens	Not measured yet	we measured it
How its API is set up	Set up identically to 1 other listing, field for field	api_4347be44
How much it can read and write	Reads up to 200,000 tokens at once, writes up to 100,000	its own listing
Whether it thinks before answering	Reasons when asked to	its own listing

Declared record

What the catalogue claims about this model

The o-series of models are trained with reinforcement learning to think before they answer and perform complex reasoning. The o3-pro model uses more compute to think harder and provide consistently...

Modalities: text+image+file->text
Declared tokenizer: GPT
Prompt price: $10.0 / M tokens
Completion price: $40.0 / M tokens

Supported parameters

include_reasoningmax_tokensreasoningresponse_formatseedstructured_outputstool_choicetools

defaults: {"temperature":null,"top_p":null,"frequency_penalty":null}

Catalogue entry

History

Every observation, kept as taken

10 June 2025Enters the OpenRouter catalogue declared as GPT.

* OpenAI: o3 Pro (batch) no longer appears in the OpenRouter catalogue, first absent from the snapshot of 3 September 2026. The record stays because the measurements above were real when they were taken and this address has been published.