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O3

o3 is OpenAI's most powerful reasoning model, surpassing o1 on math, coding, and science benchmarks. It supports tool use and vision, making it the top choice for the hardest analytical and code-generation tasks.

O3 Pricing & Specifications

Input Price$2.00 per 1M tokens
Output Price$8.00 per 1M tokens
Context Window200,000 tokens (200K)
Max Output100,000 tokens
ProviderOpenAI
Release Date2025-04

What is O3?

O3 is a large language model by OpenAI with a 200K context window and up to 100,000 output tokens. It costs $2.00 per 1M input tokens and $8.00 per 1M output tokens. o3 is OpenAI's most powerful reasoning model, surpassing o1 on math, coding, and science benchmarks. It supports tool use and vision, making it the top choice for the hardest analytical and code-generation tasks.

Capabilities

text vision reasoning function calling json mode

O3 Cost Examples

Short prompt (500 tokens)

$0.001000

Medium prompt (2K tokens)

$0.00400

Long output (4K tokens)

$0.03200

Count tokens for O3

Paste your prompt to see exact token counts and API cost estimates.

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Frequently Asked Questions

How much does O3 cost per token? +
O3 costs $2.00 per 1M input tokens and $8.00 per 1M output tokens. For a typical 1,000-token request with a 500-token response, that works out to roughly $0.006000.
What is the context window for O3? +
O3 supports a context window of 200,000 tokens (200K). This determines the maximum combined length of your prompt and conversation history in a single API call.
What is the maximum output length for O3? +
O3 can generate up to 100,000 tokens in a single response. If you need longer outputs, you can make multiple API calls and concatenate the results.
Is O3 good for coding tasks? +
Yes, O3 supports capabilities well-suited for coding tasks including code generation, debugging, and refactoring.
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