OpenAI: gpt-5-mini-2025-08-07:free

gpt-5-mini-2025-08-07:free
400K context128K outReasoningToolsParallel toolsVisionFilesCacheStructuredStreamingSystem msg
Released Aug 7, 2025Knowledge cutoff May 2024Updated Aug 7, 2025

A high-efficiency variant of GPT-5 released in August 2025. It inherits GPT-5's native reasoning architecture but is optimized for speed and cost. Excelling in coding, logical classification, and structured data extraction, it is the most cost-effective "reasoning" small model, succeeding the previous o4-mini.

Mode chatTokenizer GPTModerated

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Pricing

Input price
$0.00/ 1M tokens
Output price
$0.00/ 1M tokens
Context window 400K tokensCompatible endpoints openaiVendor OpenAI

Performance

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Usage & Ranking

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Supported parameters

All providers = every upstream serving this model supports it. Some providers = depends on which upstream handles the request. Default = the value sent when you leave the parameter unset.

ParameterProvidersDefault
frequency_penaltySome providersNot sent by default
include_reasoningAll providers-
max_completion_tokensSome providers-
max_tokensSome providers-
presence_penaltySome providersNot sent by default
reasoningAll providers-
repetition_penaltySome providersNot sent by default
response_formatAll providers-
seedAll providers-
structured_outputsAll providers-
temperatureSome providersNot sent by default
tool_choiceAll providers-
toolsAll providers-
top_kSome providersNot sent by default
top_pSome providersNot sent by default

Frequently asked questions

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