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OpenAI · Efficient

OpenAI o3-mini (High)

Added Jan 1, 2024

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Use in the app

OpenAI's o3-mini reasoning model with reasoning effort set to high.

  • Reasoning
  • Tools
  • Structured output
Input
Text
Output
Text
Reasoning effort
low · medium · high
Discovery tier
Efficient

Pricing

USD per 1M tokens
Input
$1.10
Output
$4.40
Cache read
$0.55

Reference prices as published by the model provider. API example

Specifications

Context window
200K
Max output
100K

Side by side

OpenAI o3-mini (High) compared

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

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OpenAI o3-mini (High)OpenAIThis modelNvidia Nemotron 3 Super 120BnvidiaRemove
ProviderOpenAInvidia
Discovery tierEfficientOpen weights
AddedJan 1, 2024Mar 1, 2026
Limits
Context window200K262.14KBest
Max output100KBest16.38K
Average output—431 tokens
Pricing, USD per 1M tokens
Input$1.10$0.05Best
Output$4.40$0.25Best
Cache read$0.55—
Performance
Request success (24h)—99.9%
Benchmark indexes
Intelligence Index12.512.8Best
Coding Index—37.7
Capabilities
ReasoningYesYes
ToolsYesNo
Structured outputYesNo
Reasoning effortlow, medium, high—

Public evaluations

Benchmarks

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

  • OpenAI o3-mini (High)
  • Nvidia Nemotron 3 Super 120B

Intelligence Index

  • OpenAI o3-mini (High)12.5
  • Nvidia Nemotron 3 Super 120B12.8

OpenAI o3-mini (High): Better than 27% of 326 scored models

3.8Catalog models by score55.1

Indexes

  • Coding Index

    Composite of the coding evaluations

    • OpenAI o3-mini (High): —
    • Nvidia Nemotron 3 Super 120B: 37.7

Agentic work

  • AutomationBench-AA

    Workflow automation, penalized for guardrail violations

    • OpenAI o3-mini (High): —
    • Nvidia Nemotron 3 Super 120B: 3.8%

  • AutomationBench-AA tasks completed

    Workflows finished end to end without a guardrail violation

    • OpenAI o3-mini (High): —
    • Nvidia Nemotron 3 Super 120B: 0.3%

  • GDPval-AAv2.1

    Economically valuable occupational tasks, rated head to head

    • OpenAI o3-mini (High): —
    • Nvidia Nemotron 3 Super 120B: 490 Elo

Document reasoning

  • GDP.pdf

    Professional reasoning over PDF documents, all-pass rate

    • OpenAI o3-mini (High): —
    • Nvidia Nemotron 3 Super 120B: 2.6%

  • AA-LCRv1.1

    Reasoning across long documents

    • OpenAI o3-mini (High): —
    • Nvidia Nemotron 3 Super 120B: 65.7%

Reasoning and knowledge

  • Humanity’s Last Exam

    Expert-level questions across academic fields

    • OpenAI o3-mini (High): 7.9%
    • Nvidia Nemotron 3 Super 120B: 20.8%Top

  • GPQA Diamond

    Graduate-level science questions

    • OpenAI o3-mini (High): 74.8%
    • Nvidia Nemotron 3 Super 120B: 80.0%Top

  • MMLU-Pro

    Multi-subject knowledge and reasoning

    • OpenAI o3-mini (High): 79.1%
    • Nvidia Nemotron 3 Super 120B: —

  • IFBench

    Following precise output instructions

    • OpenAI o3-mini (High): —
    • Nvidia Nemotron 3 Super 120B: 71.5%

Coding

  • Terminal-Benchv4.0

    Practical software engineering in a terminal

    • OpenAI o3-mini (High): —
    • Nvidia Nemotron 3 Super 120B: 0.0%

  • SciCode

    Scientific computing in Python

    • OpenAI o3-mini (High): —
    • Nvidia Nemotron 3 Super 120B: 36.2%

  • LiveCodeBench

    Recent competitive programming problems

    • OpenAI o3-mini (High): 71.7%
    • Nvidia Nemotron 3 Super 120B: —

Math

  • AIME

    Competition mathematics

    • OpenAI o3-mini (High): 77.0%
    • Nvidia Nemotron 3 Super 120B: —

  • MATH-500

    Competition math problems

    • OpenAI o3-mini (High): 97.3%
    • Nvidia Nemotron 3 Super 120B: —

Legacy evaluations

  • Terminal-Bench Hard

    Earlier terminal task suite

    • OpenAI o3-mini (High): 6.8%
    • Nvidia Nemotron 3 Super 120B: 28.8%Top

  • τ²-Bench Telecom

    Tool use in a customer-support simulation

    • OpenAI o3-mini (High): 28.7%
    • Nvidia Nemotron 3 Super 120B: 67.8%Top

  • AA-LCR (unversioned)

    Long-context reasoning, earlier grading

    • OpenAI o3-mini (High): —
    • 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/o3-mini-high",
    "reasoning_effort": "medium",
    "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/o3-mini-high",
    messages=[{"role": "user", "content": "Explain this stack trace."}],
)
print(reply.choices[0].message.content)

OpenAI

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