How much does GPT-5 Pro cost?

GPT-5 Pro is listed at $15/1M input tokens, and $120/1M output tokens.

What is the context window for GPT-5 Pro?

GPT-5 Pro supports a context window of 400k 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 GPT-5 Pro support?

GPT-5 Pro supports the following capabilities in Sim: Tool choice, Structured outputs, Reasoning high, Max output 272k.

What is GPT-5 Pro best used for?

Best for reasoning-heavy tasks that need more deliberate model control. When used in a Sim workflow, it can be selected in any Agent block from the model picker.

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OpenAI model

GPT-5 Pro

Name: GPT-5 Pro
Brand: OpenAI
SKU: gpt-5-pro

GPT-5 Pro is a OpenAI model tracked in Sim. It supports a 400k token context window. Pricing starts at $15/1M input tokens and $120/1M output tokens. Key capabilities include Tool choice, Structured outputs, Reasoning high. Best for reasoning-heavy tasks that need more deliberate model control.

Build with this model All OpenAI models

Input price$15/1M

Cached inputN/A

Output price$120/1M

Context window400k

Max output272k tokens

ProviderOpenAI

UpdatedApr 1, 2026

Best forBest for reasoning-heavy tasks that need more deliberate model control.

TemperatureNot configurable

Reasoning efforthigh

VerbosityNot supported

Thinking levelsNot supported

Structured outputsSupported

Tool choiceSupported

Computer useNot supported

Deep researchNot supported

Memory supportSupported

Max output tokens272k

Frequently asked questions

GPT-5 Pro is a OpenAI model available in Sim. GPT-5 Pro is a OpenAI model tracked in Sim. It supports a 400k token context window. Pricing starts at $15/1M input tokens and $120/1M output tokens. Key capabilities include Tool choice, Structured outputs, Reasoning high.