Activereasoningllm Proprietary

o3

by OpenAI· Released December 2024· Cutoff October 2024

o3 is OpenAI's most advanced reasoning model, designed to spend more time thinking before responding. It excels at complex problem-solving, coding, and scientific reasoning, outperforming its predecessor o1 on challenging benchmarks. o3 is part of OpenAI's reasoning model series, offering enhanced capabilities for tasks requiring deep logical deduction.

Official Site API Docs

Input cost

$10.00 per 1M tokens

Output cost

$40.00 per 1M tokens

Context window

200K tokens

Max output

100K tokens

Modalities

text

License

proprietary

Capabilities

ReasoningCode GenerationComplex Problem SolvingMathScienceFunction CallingStreamingJSON Mode

Best For

Complex reasoning tasks, advanced coding, and scientific research requiring deep logical analysis.

Strengths

State-of-the-art reasoning capabilities
Excellent performance on math and coding benchmarks
Long context window (200K tokens)
High max output tokens (100K)

Limitations

Higher cost compared to GPT-4o
Slower response time due to extended reasoning
Not optimized for simple or conversational tasks
Limited to text-only input (no vision)

Use Cases

Advanced mathematical problem solving

Complex code generation and debugging

Scientific research and hypothesis testing

Legal document analysis

Strategic planning and decision making

Data analysis and interpretation

Algorithm design and optimization

Improvements Over Previous Model

Significantly improved reasoning over o1, achieving higher scores on ARC, GPQA, and coding benchmarks
Extended context window from 128K to 200K tokens
Increased max output tokens from 32K to 100K tokens
Better performance on complex math (AIME 2024: 96.7% vs o1's 83.3%)
Enhanced coding capabilities (Codeforces rating ~2727 vs o1's ~1891)

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