OpenAI: GPT-5 Pro is an API-access large language model from Openai priced at $15.00/1M input tokens and $120.00/1M output tokens with a 400k context window. Context caching reduces input costs to $7.50/1M for cache reads. Supported capabilities include reasoning and tool calling.
Economics (OpenRouter)
Input / 1M
$15.00
Output / 1M
$120.00
Est. Monthly Cost
$1669.50
Based on current usage settings
Cache Read$7.50
Cache Write$18.75
Capabilities (models.dev)
ReasoningSupported
Tool CallSupported
Audio InNo
Audio OutNo
Modalitymultimodal
Context Window400k
Benchmarks (AA)
Intelligence Index
General reasoning and knowledge
—
Coding Index
Code generation & debugging
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Math Index
Mathematical reasoning
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Performance
—tokens/sec
* Median output throughput
Model ID: openai/gpt-5-pro • Data Sources: OpenRouter, Artificial Analysis, models.dev