OpenAI model
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.
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.