OpenAI: o1

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Author's Description

The latest and strongest model family from OpenAI, o1 is designed to spend more time thinking before responding. The o1 model series is trained with large-scale reinforcement learning to reason using chain of thought. The o1 models are optimized for math, science, programming, and other STEM-related tasks. They consistently exhibit PhD-level accuracy on benchmarks in physics, chemistry, and biology. Learn more in the [launch announcement](https://openai.com/o1).

Key Specifications
Cost
+$$$$$
Context
200K
Parameters
300B
Released
Dec 17, 2024
Speed
Ability
Reliability
Supported Parameters

This model supports the following parameters:

Tool Choice Response Format Structured Outputs Tools Max Tokens Seed
Features

This model supports the following features:

Response Format Tools Structured Outputs
Performance Summary

OpenAI's o1 model, launched on December 17, 2024, is designed for advanced reasoning, particularly in STEM fields, leveraging large-scale reinforcement learning and chain-of-thought processing. The model exhibits moderate speed performance, ranking in the 24th percentile across benchmarks. Its pricing is positioned at a premium level, consistently falling into the 1st percentile for cost. A standout feature is its exceptional reliability, achieving a 100% success rate across all evaluated benchmarks, indicating minimal technical failures. In terms of performance across categories, o1 demonstrates PhD-level accuracy in specialized areas, as evidenced by its perfect 100% accuracy in Reasoning, where it is also noted as the most accurate model at its price point and speed. It also performs strongly in General Knowledge (99.8% accuracy) and Coding (92.0% accuracy), ranking in the 84th and 79th percentiles respectively. While its Hallucinations Baseline accuracy is solid at 98.0%, its Instruction Following accuracy of 77.0% is a notable strength, placing it in the 89th percentile. Ethics and Email Classification benchmarks show competent performance at 98.0% accuracy. Overall, o1's key strengths lie in its advanced reasoning, STEM-related task optimization, and robust reliability, though its premium pricing and moderate speed are considerations.

Model Pricing

Current Pricing

Feature Price (per 1M tokens)
Prompt $15
Completion $60
Input Cache Read $7.5

Price History

Available Endpoints
Provider Endpoint Name Context Length Pricing (Input) Pricing (Output)
OpenAI
OpenAI | openai/o1-2024-12-17 200K $15 / 1M tokens $60 / 1M tokens
Benchmark Results
Benchmark Category Reasoning Strategy Free Executions Accuracy Cost Duration
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