OpenAI gpt-5.1
Version: 2025-11-13
Direct from Azure models
Direct from Azure models are a select portfolio curated for their market-differentiated capabilities:- Secure and managed by Microsoft: Purchase and manage models directly through Azure with a single license, consistent support, and no third-party dependencies, backed by Azure's enterprise-grade infrastructure.
- Streamlined operations: Benefit from unified billing, governance, and seamless PTU portability across models hosted on Azure - all part of Microsoft Foundry.
- Future-ready flexibility: Access the latest models as they become available, and easily test, deploy, or switch between them within Microsoft Foundry; reducing integration effort.
- Cost control and optimization: Scale on demand with pay-as-you-go flexibility or reserve PTUs for predictable performance and savings.
Key capabilities
About this model
This model is provided through the Azure OpenAI Service.Key model capabilities
GPT-5.1 builds on GPT-5 with improvements that make interactions more reliable, flexible, and user-friendly. The focus is on delivering clearer responses, better adaptability, and enhanced control for diverse tasks. Key highlights include:- Greater consistency: Produces more predictable and accurate outputs aligned with user instructions.
- Adaptive reasoning: Handles complex queries with improved depth while remaining efficient for simpler tasks.
- Expanded context handling: Supports longer inputs for multi-step workflows and richer conversations.
- Refined customization: Offers better control over tone, style, and structured output for tailored experiences.
- Broader applicability: Strengthens performance across a wide range of domains while maintaining clarity and safety.
Key use cases
GPT-5.1 is ideal for tasks that require long-form reasoning and synthesis, such as analyzing complex documents or generating detailed reports, and for interactive workflows like spreadsheet editing, structured content creation, and coding assistance. It also excels in customizable communication, enabling tailored responses for support, education, and executive summaries across diverse domains.Out of scope use cases
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 is 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 .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 supports multimodal inputs.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: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 is 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 The provider has not supplied this information.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 Index0.90
LicenseCustom
Training DataOctober 2024
Last UpdatedDecember 2025
Input TypeText,Image
Output TypeText
ProviderOpenAI
Languages1 Language
Related Models