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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 modelGPT 6.1 SolOpenAIRemove
ProviderOpenAIOpenAI
Discovery tierBalancedFrontier
AddedJan 25, 2025Sep 29, 2026
Limits
Context window200K1.05MBest
Max output100K128KBest
Average output34 tokens388 tokens
Pricing, USD per 1M tokens
Input$150.00$2.00Best
Output$600.00$10.00Best
Cache read$75.00$0.10Best
Cache write—$2.50
Performance
Throughput—103.1 tok/s
Time to first token—4.9 s
Request success (24h)—99.9%
Benchmark indexes
Intelligence Index12.447.8Best
Capabilities
ReasoningNoYes
ToolsNoYes
VisionYesYes
Structured outputNoYes
PDF inputYesYes
Reasoning effort—low, medium, high, xhigh, max

Public evaluations

Benchmarks

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

  • OpenAI o1 Pro
  • GPT 6.1 Sol

Intelligence Index

  • OpenAI o1 Pro12.4
  • GPT 6.1 Sol47.8

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

3.8Catalog models by score55.1

Agentic work

  • AutomationBench-AA

    Workflow automation, penalized for guardrail violations

    • OpenAI o1 Pro: —
    • GPT 6.1 Sol: 62.6%

  • AutomationBench-AA tasks completed

    Workflows finished end to end without a guardrail violation

    • OpenAI o1 Pro: —
    • GPT 6.1 Sol: 30.1%

  • AA-Briefcasev1.1

    Agentic knowledge work, rated head to head

    • OpenAI o1 Pro: —
    • GPT 6.1 Sol: 1,359 Elo

  • GDPval-AAv2.1

    Economically valuable occupational tasks, rated head to head

    • OpenAI o1 Pro: —
    • GPT 6.1 Sol: 1,450 Elo

Document reasoning

  • GDP.pdf

    Professional reasoning over PDF documents, all-pass rate

    • OpenAI o1 Pro: —
    • GPT 6.1 Sol: 30.0%

  • AA-LCRv1.1

    Reasoning across long documents

    • OpenAI o1 Pro: —
    • GPT 6.1 Sol: 83.3%

  • MLCR-AA

    Long-context reasoning over medical records

    • OpenAI o1 Pro: —
    • GPT 6.1 Sol: 32.2%

Reasoning and knowledge

  • Humanity’s Last Exam

    Expert-level questions across academic fields

    • OpenAI o1 Pro: —
    • GPT 6.1 Sol: 49.9%

Coding

  • Terminal-Benchv4.0

    Practical software engineering in a terminal

    • OpenAI o1 Pro: —
    • GPT 6.1 Sol: 48.0%

  • SciCode

    Scientific computing in Python

    • OpenAI o1 Pro: —
    • GPT 6.1 Sol: 53.2%

Legacy evaluations

  • AA-LCR (unversioned)

    Long-context reasoning, earlier grading

    • OpenAI o1 Pro: —
    • GPT 6.1 Sol: 83.3%

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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