OpenAI: o3

OpenAI: o3

openai · Released Apr 16, 2025 Professional
Intelligence #58 / 571
70.2 Our Score
Speed #102 / 266
120.3 tokens / sec
Input #478 / 571
$2.00 per 1M tokens
Output #480 / 571
$8.00 per 1M tokens
Context #195 / 571
200,000 tokens

Analysis Summary

OpenAI o3 is a frontier reasoning model with an intelligence index of 38.4, placing it in the very strong tier, and an agentic index of 58.9 that ranks among the highest in the current field. Its math index of 88.3 and livecodebench of 0.808 confirm exceptional performance on structured reasoning and coding tasks. Vision, file input, tool use, and function calling round out a broad capability profile suited to demanding business workflows.

For businesses, o3 is well suited to autonomous coding agents, complex multi-step analysis, long-document reasoning, and any workflow where answer quality on hard problems is critical. The 200K context window supports large codebase or document tasks. Instruction following (ifbench 0.714) and long-context reasoning (lcr 0.693) are both strong, making it reliable for client-facing content generation as well.

At $2 input and $8 output per million tokens, pricing is mid-range for this capability tier. Teams running high-value, low-volume tasks where accuracy and depth justify the cost will find o3 a strong fit. It is one of the most capable benchmarked models available at this price point.

Assessed June 6, 2026

Editorial notes

OpenAI o3 delivers world-class math and agentic performance, strong coding benchmarks, vision and file input, and reliable instruction following across complex multi-step tasks.

Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?

Performance Profile

Intelligence5.9Technical6.9Value6.5Content7.5
Intelligence 5.9/10
Technical 6.9/10
Content 7.5/10
Value 6.5/10

How OpenAI: o3 compares

OpenAI: o3 ranks #72 of 374 AI models we track for overall intelligence, #49 of 311 for coding, #62 of 286 for agentic tasks. Its 200K-token context window is larger than 66% of the models we list. At $2.00 per million input tokens it is cheaper than 16% of comparable models.

About OpenAI: o3

o3 is a well-rounded and powerful model across domains. It sets a new standard for math, science, coding, and visual reasoning tasks. It also excels at technical writing and instruction-following..

Capabilities

Tool Use Function Calling Vision

Performance Indices

Source: Artificial Analysis

38.4 Intelligence Index
38.4 Coding Index
58.9 Agentic Index
88.3 Math Index

Benchmark Scores

Intelligence

GPQA Diamond 82.7% Graduate-level scientific reasoning
HLE 20% Humanity's Last Exam
MMLU Pro 85.3% Multi-task language understanding
MATH 500 99.2% Mathematical problem-solving
AIME 90.3% Competition mathematics
AIME 2025 88.3% Competition mathematics (2025)
SciCode 41% Scientific computing

Technical

LiveCodeBench 80.8% Live coding evaluation
TerminalBench Hard 37.1% Agentic terminal tasks
τ²-Bench 80.7% Conversational agent benchmark

Content

IFBench 71.4% Instruction following
LCR 69.3% Long-context reasoning

Benchmark data from Artificial Analysis and Hugging Face

How does OpenAI: o3 stack up?

Compare side-by-side with other professional models.

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Model Information

OpenRouter ID openai/o3
Provideropenai
Model Familyo3
Release Date April 16, 2025
Context Length200,000 tokens
Max Completion100,000 tokens
Status Active

Pricing

Token Type Cost per 1M tokens Cost per 1K tokens
Input $2.00 $0.002000
Output $8.00 $0.008000

Live Performance

Live endpoint metrics, refreshed every 30 minutes.

100%
Avg Uptime
3,246ms
Best Latency (TTFT)
95 tok/s
Best Throughput
1/1
Active Endpoints
Available via: OpenAI

Leaderboard Categories

Frequently asked questions about OpenAI: o3

How much does OpenAI: o3 cost?

OpenAI: o3 costs $2.00 per million input tokens and $8.00 per million output tokens.

What is the context window of OpenAI: o3?

OpenAI: o3 has a context window of 200,000 tokens (200K).

Is OpenAI: o3 good for coding?

On our coding benchmark index, OpenAI: o3 ranks #49 of 311 models, placing it in the top quartile of the field for code generation and debugging.

What can OpenAI: o3 do?

OpenAI: o3 supports image/vision input, tool use, and function calling.

Who created OpenAI: o3?

OpenAI: o3 is developed by OpenAI and was released on April 16, 2025.