GPT-5 Mini (Free)
Chat Completionsgpt-5-mini-2025-08-07:free
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A compact variant of GPT-5, designed for efficient handling of lighter-weight reasoning and conversational tasks. GPT-5 Mini retains the instruction-following and safety features of its larger counterpart, but with reduced latency and cost. It is the direct successor to OpenAI’s o4-mini model, making it ideal for scalable, cost-sensitive deployments.
Pricing
Pay-as-you-go rates for this model. More details can be found here.
Free
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
Tool Choice
Tools
Web Search Options