A compact reasoning model in OpenAI’s o-series, optimized for fast, cost-efficient performance while retaining strong multimodal and agentic capabilities. Supports tool use and demonstrates competitive reasoning and coding performance across benchmarks, outperforming its predecessor o3-mini and approaching o3 in some domains. Well-suited for high-throughput scenarios where latency or cost is critical.
Pricing
Pay-as-you-go rates for this model. More details can be found here.
Input Tokens (1M)
$0.55
Output Tokens (1M)
$2.20
Capabilities
Input Modalities
Text
Image
File
Output Modalities
Text
Supported Parameters
Available parameters for API requests
Frequency Penalty
Function Call
Functions
Logit Bias
Max Completion Tokens
Parallel Tool Calls
Prediction
Presence Penalty
Reasoning Effort
Response Format
Stop
Temperature
Tool Choice
Tools
Top P
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