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o3 token cost

OpenAI · context 200,000 tokens · tokenizer Exact

When to use o3

OpenAI reasoning model for harder problems where extra thinking tokens are worth the bill. Watch output cost: reasoning tokens are billed at the output rate.

Pricing

Input
$2.00/1M
Output
$8.00/1M
Cached input
$0.500/1M
Batch input
$1.00/1M
Verified

Official pricing source · Open main calculator

Reasoning tokens are billed at the output rate.

Estimate with TokenCALC

Preselect o3 in the calculator to count tokens and project request or monthly cost. Exact vs Approx follows this model's tokenizer family. See the Exact vs Approx guide for honesty rules.

Estimate cost for o3 · Count tokens · Pricing guide

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