OpenAI gpt-5-mini
OpenAI gpt-5-mini
Version: 2025-08-07
OpenAILast updated December 2025
gpt-5-mini is a lightweight version for cost-sensitive applications.
Multipurpose
Multilingual
Multimodal

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Key capabilities

About this model

This model is provided through the Azure OpenAI Service.

Key model capabilities

  • A lightweight version for cost-sensitive applications.
  • Now supporting minimal reasoning, a new verbosity setting, and the "customs" tool for raw text output.
  • Supports new "allowed tools" tool choice that enables you to specify multiple tools in the tool choice instead of just one
  • supports new "preamble" support, allowing the model to "think" before calling a tool. This is always enabled and controlled through prompting.
  • gpt-5-mini supports multimodal inputs, real-time streaming and full tool support for smarter, more dynamic user experiences

Use cases

See Responsible AI for additional considerations for responsible use.

Key use cases

The provider has not supplied this information.

Out of scope use cases

The provider has not supplied this information.

Pricing

Pricing is based on a number of factors, including deployment type and tokens used. See pricing details here.

Technical specs

The provider has not supplied this information.

Training cut-off date

The provider has not supplied this information.

Training time

The provider has not supplied this information.

Input formats

gpt-5-mini supports multimodal inputs, real-time streaming and full tool support for smarter, more dynamic user experiences

Output formats

Now supporting minimal reasoning, a new verbosity setting, and the "customs" tool for raw text output.

Supported languages

The provider has not supplied this information.

Sample JSON response

The provider has not supplied this information.

Model architecture

The provider has not supplied this information.

Long context

The provider has not supplied this information.

Optimizing model performance

The provider has not supplied this information.

Additional assets

The provider has not supplied this information.

Training disclosure

Training, testing and validation

The provider has not supplied this information.

Distribution

Distribution channels

The provider has not supplied this information.

More information

The following documents are applicable: OpenAI has incorporated additional safety measures including new techniques to help the models refuse unsafe requests. These advancements make the o1 series some of the most robust models available. OpenAI measures safety by testing how well models continue to follow its safety rules if a user tries to bypass them (known as "jailbreaking"). In OpenAI's internal tests, GPT-4o scored 22 (on a scale of 0-100) while o1-preview model scored 84. You can read more about this in the OpenAI's system card and research post .

Responsible AI considerations

Safety techniques

OpenAI has incorporated additional safety measures including new techniques to help the models refuse unsafe requests. These advancements make the o1 series some of the most robust models available.

Safety evaluations

OpenAI measures safety by testing how well models continue to follow its safety rules if a user tries to bypass them (known as "jailbreaking"). In OpenAI's internal tests, GPT-4o scored 22 (on a scale of 0-100) while o1-preview model scored 84. You can read more about this in the OpenAI's system card and research post .

Known limitations

The provider has not supplied this information.

Acceptable use

Acceptable use policy

The provider has not supplied this information.

Quality and performance evaluations

Source: OpenAI The provider has not supplied this information.

Benchmarking methodology

Source: OpenAI OpenAI measures safety by testing how well models continue to follow its safety rules if a user tries to bypass them (known as "jailbreaking").

Public data summary

Source: OpenAI In OpenAI's internal tests, GPT-4o scored 22 (on a scale of 0-100) while o1-preview model scored 84. You can read more about this in the OpenAI's system card and research post .
Model Specifications
Context Length200000
Quality Index0.89
LicenseCustom
Training DataJune 2024
Last UpdatedDecember 2025
Input TypeText,Image
Output TypeText
ProviderOpenAI
Languages1 Language