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OpenAI · Balanced

OpenAI o1 Pro

Added Jan 25, 2025

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Use in the app

OpenAI's flagship series of reasoning models for solving hard problems. 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 consistently better answers. o1 pro comes with a massive 100,000 word output window.

  • Vision
  • PDF input
Input
Text, Images
Output
Text
Discovery tier
Balanced

Pricing

USD per 1M tokens
Input
$150.00
Output
$600.00
Cache read
$75.00

Reference prices as published by the model provider. API example

Specifications

Context window
200K
Max output
100K
Average output (7 days)
34 tokens
Longer than 2% of 468 models

Side by side

OpenAI o1 Pro compared

Specifications, prices, speed and benchmark scores next to each other. Benchmarks below show every compared model too.

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OpenAI o1 ProOpenAIThis modelNvidia Nemotron 3 Super 120BnvidiaRemove
ProviderOpenAInvidia
Discovery tierBalancedOpen weights
AddedJan 25, 2025Mar 1, 2026
Limits
Context window200K262.14KBest
Max output100KBest16.38K
Average output34 tokens431 tokens
Pricing, USD per 1M tokens
Input$150.00$0.05Best
Output$600.00$0.25Best
Cache read$75.00—
Performance
Request success (24h)—99.9%
Benchmark indexes
Intelligence Index12.412.8Best
Coding Index—37.7
Capabilities
ReasoningNoYes
VisionYesNo
PDF inputYesNo
Reasoning effort——

Public evaluations

Benchmarks

Independent evaluation results, with how each score ranks among the models in the Noumen catalog.

  • OpenAI o1 Pro
  • Nvidia Nemotron 3 Super 120B

Intelligence Index

  • OpenAI o1 Pro12.4
  • Nvidia Nemotron 3 Super 120B12.8

OpenAI o1 Pro: Better than 26% of 326 scored models

3.8Catalog models by score55.1

Indexes

  • Coding Index

    Composite of the coding evaluations

    • OpenAI o1 Pro: —
    • Nvidia Nemotron 3 Super 120B: 37.7

Agentic work

  • AutomationBench-AA

    Workflow automation, penalized for guardrail violations

    • OpenAI o1 Pro: —
    • Nvidia Nemotron 3 Super 120B: 3.8%

  • AutomationBench-AA tasks completed

    Workflows finished end to end without a guardrail violation

    • OpenAI o1 Pro: —
    • Nvidia Nemotron 3 Super 120B: 0.3%

  • GDPval-AAv2.1

    Economically valuable occupational tasks, rated head to head

    • OpenAI o1 Pro: —
    • Nvidia Nemotron 3 Super 120B: 490 Elo

Document reasoning

  • GDP.pdf

    Professional reasoning over PDF documents, all-pass rate

    • OpenAI o1 Pro: —
    • Nvidia Nemotron 3 Super 120B: 2.6%

  • AA-LCRv1.1

    Reasoning across long documents

    • OpenAI o1 Pro: —
    • Nvidia Nemotron 3 Super 120B: 65.7%

Reasoning and knowledge

  • Humanity’s Last Exam

    Expert-level questions across academic fields

    • OpenAI o1 Pro: —
    • Nvidia Nemotron 3 Super 120B: 20.8%

  • GPQA Diamond

    Graduate-level science questions

    • OpenAI o1 Pro: —
    • Nvidia Nemotron 3 Super 120B: 80.0%

  • IFBench

    Following precise output instructions

    • OpenAI o1 Pro: —
    • Nvidia Nemotron 3 Super 120B: 71.5%

Coding

  • Terminal-Benchv4.0

    Practical software engineering in a terminal

    • OpenAI o1 Pro: —
    • Nvidia Nemotron 3 Super 120B: 0.0%

  • SciCode

    Scientific computing in Python

    • OpenAI o1 Pro: —
    • Nvidia Nemotron 3 Super 120B: 36.2%

Legacy evaluations

  • Terminal-Bench Hard

    Earlier terminal task suite

    • OpenAI o1 Pro: —
    • Nvidia Nemotron 3 Super 120B: 28.8%

  • τ²-Bench Telecom

    Tool use in a customer-support simulation

    • OpenAI o1 Pro: —
    • Nvidia Nemotron 3 Super 120B: 67.8%

  • AA-LCR (unversioned)

    Long-context reasoning, earlier grading

    • OpenAI o1 Pro: —
    • Nvidia Nemotron 3 Super 120B: 65.7%

Scores from Artificial Analysis, updated Oct 26, 2026. Artificial Analysis

Developers

Use it through the API

Noumen’s API is OpenAI-compatible: any Chat Completions client works with a base URL and a key.

Read the quickstart
curl https://www.noumen.xyz/api/v1/chat/completions \
  -H "Authorization: Bearer $NOUMEN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/o1-pro",
    "messages": [{ "role": "user", "content": "Explain this stack trace." }]
  }'
import os
from openai import OpenAI

client = OpenAI(base_url="https://www.noumen.xyz/api/v1", api_key=os.environ["NOUMEN_API_KEY"])
reply = client.chat.completions.create(
    model="openai/o1-pro",
    messages=[{"role": "user", "content": "Explain this stack trace."}],
)
print(reply.choices[0].message.content)

OpenAI

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