How much does o3 Pro cost?

o3 Pro is listed at $20/1M input tokens, and $80/1M output tokens.

What is the context window for o3 Pro?

o3 Pro supports a context window of 200k tokens in Sim. In an agent, this determines how much conversation history, tool outputs, and retrieved documents the model can hold in a single call.

What capabilities does o3 Pro support?

o3 Pro supports the following capabilities in Sim: Tool choice, Structured outputs, Max output 100k.

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OpenAI model

o3 Pro

Name: o3 Pro
Brand: OpenAI
SKU: o3-pro

o3 Pro is a OpenAI model tracked in Sim. It supports a 200k token context window. Pricing starts at $20/1M input tokens and $80/1M output tokens. Key capabilities include Tool choice, Structured outputs, Max output 100k.

Build with this model All OpenAI models

Input price$20/1M

Cached inputN/A

Output price$80/1M

Context window200k

Max output100k tokens

ProviderOpenAI

UpdatedApr 1, 2026

TemperatureNot configurable

Reasoning effortNot supported

VerbosityNot supported

Thinking levelsNot supported

Structured outputsSupported

Tool choiceSupported

Computer useNot supported

Deep researchNot supported

Memory supportSupported

Max output tokens100k

Frequently asked questions

o3 Pro is a OpenAI model available in Sim. o3 Pro is a OpenAI model tracked in Sim. It supports a 200k token context window. Pricing starts at $20/1M input tokens and $80/1M output tokens. Key capabilities include Tool choice, Structured outputs, Max output 100k.