o1-preview (2024-09-12)

OpenAI chatreasoning Free

API ID: openai/o1-preview-2024-09-12

Input Price
Free
/1M tokens
Output Price
Free
/1M tokens

About o1-preview (2024-09-12)

OpenAI o1 is a revolutionary reasoning model that thinks before it responds, achieving breakthrough performance on complex mathematical, scientific, and coding problems. Released in September 2024, o1 introduces a new paradigm in AI by using extended 'thinking time' to work through problems step-by-step, similar to how humans approach difficult challenges. The model ranks in the 89th percentile on competitive programming (Codeforces) and places among the top 500 students in the USA Math Olympiad qualifier. o1 excels at tasks requiring multi-step reasoning, logical deduction, and careful analysis—areas where traditional language models often struggle. With a 200K context window and support for vision inputs, it can analyze complex documents and images while maintaining its reasoning capabilities. The model is particularly valuable for research, advanced mathematics, algorithm development, and any application requiring deep analytical thinking. While o1 has higher latency due to its thinking process and costs more than GPT-4o, the investment pays off for problems where accuracy matters more than speed. For developers tackling genuinely difficult problems, o1 represents a significant capability upgrade.

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Price Ranking
#1 lowest price among 950 Chat models — Top 20% cheapest!

Model Specifications

Context Length
128k
Max Output
Release Date
2024-09-12
Capabilities
chat reasoning
Input Modalities
text
Output Modalities
text

Best For

  • Complex reasoning, math problems, multi-step logic
  • Conversations, content writing, general assistance

Consider Alternatives For

  • Image understanding (needs vision capability)
  • Simple Q&A (cheaper models available)
🎉

This model is completely free!

No token costs - use it without worrying about API bills.

Estimate Token Usage

OpenAI Model Lineup

Compare all models from OpenAI to find the best fit

Model Input Output Context Capabilities
o1-preview (2024-09-12) Current Free Free 128k chat reasoning
GPT-3.5 Turbo 16k (older v1106) Free Free 16k chat
GPT-3.5 Turbo 16k (older v1106) Free Free 16k chat
GPT-4 32k Free Free 33k chat
GPT-4 32k Free Free 33k chat
GPT-4 32k (older v0314) Free Free 33k chat

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🚀 Quick Start

Get started with o1-preview (2024-09-12) API

OpenAI Python SDK
from openai import OpenAI
client = OpenAI()

response = client.chat.completions.create(
    model="openai/o1-preview-2024-09-12",
    messages=[
        {"role": "user", "content": "Hello!"}
    ]
)
print(response.choices[0].message.content)