OpenAI: o1 API Pricing

by openai · 200K context window ·

$15.000
Input /1M tokens
$60.000
Output /1M tokens
200K
Context window

Understand OpenAI's o1 API pricing for large language models. Designed for machine learning engineers, this page details the cost structure, with input priced at $15.00000 per 1 million tokens and output at $60.00000 per 1 million tokens, totaling $75.0000 per million tokens. The API supports a context window of 200,000 tokens. Evaluate if OpenAI's o1 API fits your budget: for example, processing 10 million tokens monthly (split equally between input and output) would cost approximately $375. This detailed breakdown helps you accurately estimate expenses when comparing LLM API providers for your projects.

Monthly Cost Examples

Assuming 50% input / 50% output token split

UsageMonthly cost
100K tokens/month$3.75
1M tokens/month$37.50
10M tokens/month$375.00
100M tokens/month$3,750.00

Compare with other models

OpenAI: o1 vs OpenAI: GPT-4o →OpenAI: o1 vs OpenAI: GPT-4o-mini →

Automate your model selection

StormRouter sends each request to the cheapest model that can handle it.
Only use OpenAI: o1 when your quality requirements demand it.

Try StormRouter free →

Similar models

OpenAI: gpt-oss-120b (free)Free/1MOpenAI: gpt-oss-20b (free)Free/1MOpenAI: gpt-oss-20b$0.170/1MOpenAI: gpt-oss-120b$0.229/1MOpenAI: gpt-oss-120b (exacto)$0.229/1MOpenAI: gpt-oss-safeguard-20b$0.375/1M