According to UsagePricing's tracker, o3 costs $2.00 per 1M input tokens and $8.00 per 1M output tokens as of March 2026. The model supports a 200,000-token context window.
Reasoning model for complex multi-step tasks and analysis.
Token Costs (per 1M)
Input Price
$2.00
Output Price
$8.00
Technical Specs
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Start Free CalculationFrequently Asked Questions
How much does o3 cost per 1M tokens? ▼
o3 costs $2 per 1M input tokens and $8 per 1M output tokens as of March 2026.
What is o3's context window? ▼
o3 has a context window of 200,000 tokens, meaning it can process approximately 150,000 words in a single request.
Who makes o3? ▼
o3 is made by OpenAI. You can access it via the OpenAI API.