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🧠 ReasoningPremium

o1

by OpenAI

Original reasoning model for complex problem-solving

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Input Price

$15

per 1M tokens

Output Price

$60

per 1M tokens

Context Window

200K

tokens (65.536K max output)

Specifications

Release Date2024-09-12
Category🧠 Reasoning
Context Window200,000 tokens
Max Output65,536 tokens
ProviderOpenAI
Input Cost$15 / 1M tokens
Output Cost$60 / 1M tokens
Price TierPremium

Capabilities

textreasoning

Related Use Cases

💬

AI Chatbot

Calculate the API cost of running a customer support or conversational AI chatbot.

~2,000 in · ~500 out
📄

Document Summarizer

Calculate how much it costs to summarize documents, reports, and articles with AI.

~8,000 in · ~1,000 out
✍️

Content Generation

Calculate the cost of generating blog posts, marketing copy, and articles with AI.

~1,500 in · ~3,000 out
🔍

Data Extraction

Calculate the cost of extracting structured data from unstructured text with AI.

~3,000 in · ~1,500 out
🌐

AI Translation

Calculate the cost of translating text with AI language models.

~2,000 in · ~2,500 out
📧

Email Assistant

Calculate the cost of an AI-powered email drafting and response assistant.

~1,500 in · ~800 out

Monthly Cost Estimates

Usage LevelDaily TokensDailyMonthlyYearly
Light~50 requests/day100K in / 20K out$2.70$81.00$986
Medium~200 requests/day500K in / 100K out$13.50$405.00$4928
Heavy~1K requests/day2,000K in / 500K out$60.00$1800.00$21900
Enterprise~5K requests/day10,000K in / 2,000K out$270.00$8100.00$98550

Cost Calculator

Alternatives to o1

💰 Cheaper Options

Claude Fable 5Anthropic
20% cheaper
$10/M in · $50/M out
Claude Mythos 5.1Anthropic
20% cheaper
$10/M in · $50/M out
Claude Fable 5.1Anthropic
20% cheaper
$10/M in · $50/M out
GPT-6 AstraOpenAI
20% cheaper
$10/M in · $50/M out

🚀 More Powerful

GPT-5.6 CyberOpenAI
17% more
$12.5/M in · $75/M out
Claude Opus 4Anthropic
20% more
$15/M in · $75/M out
Claude Opus 4.1Anthropic
20% more
$15/M in · $75/M out
Claude 3 OpusAnthropic
20% more
$15/M in · $75/M out

Frequently Asked Questions

How much does o1 API cost per million tokens?▼
o1 costs $15 per million input tokens and $60 per million output tokens as of 2026. These are the standard API rates from OpenAI.
What is the o1 context window?▼
o1 supports a 200K context window (200,000 tokens), which means you can process up to 200K tokens in a single API call.
How much does o1 cost per month?▼
At medium usage (~200 requests/day with 500K input and 100K output tokens/day), o1 costs approximately $405.00/month. Light usage runs about $81.00/month, and heavy usage (~1K requests/day) around $1800.00/month.
Is there a cheaper alternative to o1?▼
Yes — Claude Fable 5 by Anthropic is a cheaper option at $10/M input tokens vs $15/M for o1. Other budget alternatives include models in the efficient tier.
Is o1 good for ai chatbot?▼
o1 is a reasoning model with support for text, reasoning. For ai chatbot, it offers 200K context and costs $15/M input tokens — a premium option for this use case.

o1 Comparisons

gpt 6 astra vs o1gpt 6 astra vs o1 progpt 6 astra vs o1 minicodex mini latest vs o1codex mini latest vs o1 procodex mini latest vs o1 minio1 vs o4 mini deep researcho1 pro vs o4 mini deep research

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