OpenAI: o1-pro

openai/o1-pro · OpenAIUnmeasurable

Declared family: GPT
Evidence confidence: Unknown
Declared tokenizer tag: GPT
Entered catalogue: 19 March 2025
Last tested: Not yet measured
Measurement: Deferred: measurement cost above the per-model cap

Evidence stack

Signals of different kinds, weighed together

Signal	Result	Reference
Tokenizer signature	Not measured	–
API surface	Identical contract to 1 other entry	api_97b97a84
Context and output	200,000 context · 100,000 max output	declared
Reasoning contract	Optional	declared
Serving providers observed	None recorded yet	–

Declared record

What the catalogue claims about this model

The o1 series of models are trained with reinforcement learning to think before they answer and perform complex reasoning. The o1-pro model uses more compute to think harder and provide...

Modalities: text+image+file->text
Declared tokenizer: GPT
Prompt price: $150 / M tokens
Completion price: $600 / M tokens

Supported parameters

include_reasoningmax_tokensreasoningresponse_formatseedstructured_outputs

defaults: {}

Catalogue entry

History

Every observation, kept as taken

19 March 2025Enters the OpenRouter catalogue declared as GPT.

Cite this page as the evidence record for OpenAI: o1-pro: the URL is stable, measurements are dated, and revisions append to the history above. Method: tokenizer fingerprinting, v1, 50 strings. The raw data behind every figure is on the data page.