o3 is OpenAI's most capable reasoning model, achieving state-of-the-art scores on ARC-AGI and math benchmarks. It improves on o1 with better cost efficiency and stronger agentic capabilities.
Input Price
$10.00/1M
per 1M tokens
Output Price
$40.00/1M
per 1M tokens
Context Window
200K tokens
max tokens
ELO Score
1380
LMSYS Arena
Pricing Breakdown
| Volume | Input Cost | Output Cost | Combined (50/50) |
|---|---|---|---|
| 1,000 tokens | $0.0100 | $0.0400 | $0.0250 |
| 10,000 tokens | $0.1000 | $0.4000 | $0.2500 |
| 100,000 tokens | $1.0000 | $4.0000 | $2.5000 |
| 1,000,000 tokens | $10.0000 | $40.0000 | $25.0000 |
Strengths
- ✓Highest reasoning benchmark scores of any model
- ✓Better cost-efficiency than o1 at similar quality
- ✓Superior at agentic and multi-step tasks
- ✓200K context window
Weaknesses
- ✗Still expensive for most use cases
- ✗Slower than non-reasoning models
Compare o3 With
Frequently Asked Questions
How much does o3 cost?
o3 costs $10.00/1M per 1M input tokens and $40.00/1M per 1M output tokens.
What is o3's context window?
o3 has a context window of 200K tokens, which means it can process up to 200,000 tokens in a single request.
Is o3 open source?
No, o3 is a proprietary model by OpenAI and is not open source.
What is o3 best used for?
o3 is best suited for: reasoning, math, coding, research. Highest reasoning benchmark scores of any model.
What is o3's ELO score?
o3 has an ELO score of 1380 on the LMSYS Chatbot Arena leaderboard, placing it among top-tier models.