o1 is OpenAI's reasoning model that uses extended chain-of-thought to solve hard problems. It excels at math, science, and complex logical reasoning, but at a significant cost and latency premium over GPT-4o.
Input Price
$15.00/1M
per 1M tokens
Output Price
$60.00/1M
per 1M tokens
Context Window
200K tokens
max tokens
ELO Score
1350
LMSYS Arena
Pricing Breakdown
| Volume | Input Cost | Output Cost | Combined (50/50) |
|---|---|---|---|
| 1,000 tokens | $0.0150 | $0.0600 | $0.0375 |
| 10,000 tokens | $0.1500 | $0.6000 | $0.3750 |
| 100,000 tokens | $1.5000 | $6.0000 | $3.7500 |
| 1,000,000 tokens | $15.0000 | $60.0000 | $37.5000 |
Strengths
- ✓Best-in-class reasoning on complex problems
- ✓Exceptional at math, science, and formal logic
- ✓Large 200K context window
- ✓Highest quality for research and analysis
Weaknesses
- ✗Very expensive — highest cost per token in OpenAI lineup
- ✗Slow — "thinks" before responding (high latency)
Compare o1 With
Frequently Asked Questions
How much does o1 cost?
o1 costs $15.00/1M per 1M input tokens and $60.00/1M per 1M output tokens.
What is o1's context window?
o1 has a context window of 200K tokens, which means it can process up to 200,000 tokens in a single request.
Is o1 open source?
No, o1 is a proprietary model by OpenAI and is not open source.
What is o1 best used for?
o1 is best suited for: reasoning, math, research, coding. Best-in-class reasoning on complex problems.
What is o1's ELO score?
o1 has an ELO score of 1350 on the LMSYS Chatbot Arena leaderboard, placing it among top-tier models.