OpenAI: GPT-5 Chat is an API-access large language model from Openai priced at $1.25/1M input tokens and $10.00/1M output tokens with a 128k context window. Context caching reduces input costs to $0.63/1M for cache reads. Supported capabilities include reasoning.
Economics (OpenRouter)
Input / 1M
$1.25
Output / 1M
$10.00
Est. Monthly Cost
$139.13
Based on current usage settings
Cache Read$0.63
Cache Write$1.56
Capabilities (models.dev)
ReasoningSupported
Tool CallNo
Audio InNo
Audio OutNo
Modalitymultimodal
Context Window128k
Benchmarks (AA)
Intelligence Index
General reasoning and knowledge
—
Coding Index
Code generation & debugging
—
Math Index
Mathematical reasoning
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Performance
—tokens/sec
* Median output throughput
Model ID: openai/gpt-5-chat • Data Sources: OpenRouter, Artificial Analysis, models.dev