GPT-5
GPT-5 is the standard tier of the GPT-5 model family, unifying advanced reasoning, coding, and multimodal capabilities in a single architecture that surpasses its predecessors across benchmarks while maintaining broad general-purpose utility.
import { streamText } from 'ai'
const result = streamText({ model: 'openai/gpt-5', prompt: 'Why is the sky blue?'})What To Consider When Choosing a Provider
Zero Data Retention
AI Gateway supports Zero Data Retention for this model via direct gateway requests (BYOK is not included). To configure this, check the documentation.Authentication
AI Gateway authenticates requests using an API key or OIDC token. You do not need to manage provider credentials directly.
GPT-5 provides the full capability of the GPT-5 architecture. It's the right choice when you need high overall quality across reasoning, coding, and creative tasks and cost is secondary to capability.
For cost-sensitive deployments, consider GPT-5 mini or GPT-5 nano, which deliver much of the same architectural improvement at lower price points.
When to Use GPT-5
Best For
Complex multi-step reasoning:
Research analysis, strategic planning, and problems requiring extended deliberation
Advanced code generation:
Full-repository comprehension, architectural decisions, and complex refactoring
Multimodal workflows:
Processing images, documents, and text together in sophisticated analysis pipelines
High-stakes content generation:
Legal drafting, technical documentation, and precision-critical writing
Agentic systems:
Backbone model for autonomous agents that need the full capability of the GPT-5 family
Consider Alternatives When
Cost-sensitive workloads:
GPT-5 mini offers strong capability at a lower price point
Lightweight tasks:
GPT-5 nano or GPT-4.1 nano handle classification and routing more efficiently
Specialized reasoning:
The o-series reasoning models may outperform on pure mathematical and scientific reasoning tasks
Speed-critical applications:
Smaller models provide faster time-to-first-token for real-time chat
Conclusion
GPT-5 advanced reasoning, coding, and multimodal capability when the GPT-5 family launched. For applications routed through AI Gateway that need the full GPT-5 family capability, it is the standard tier.
FAQ
GPT-5 represents a generational improvement over GPT-4o across reasoning, coding, instruction following, and multimodal capabilities.
GPT-5 supports a context window of 400K tokens, enabling full-codebase analysis and extended document processing in a single request.
Use GPT-5 when you need the highest-tier capability in the GPT-5 family. Use GPT-5 mini when you need strong performance at lower cost, particularly for high-volume production workloads.
Yes. It accepts text and image inputs, enabling vision-based analysis, document processing with figures, and mixed-modality workflows.
AI Gateway accepts a single API key or OIDC token for all requests. You don't embed OpenAI credentials in your application; AI Gateway routes and authenticates on your behalf.
See the pricing section on this page for today's rates. AI Gateway exposes each provider's pricing for GPT-5.
This page shows live throughput and time-to-first-token metrics measured across real AI Gateway traffic.
