Best API Gateways for GPT-5.2 Instant

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Compare the Top API Gateways that integrate with GPT-5.2 Instant as of December 2025

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This a list of API Gateways that integrate with GPT-5.2 Instant. Use the filters on the left to add additional filters for products that have integrations with GPT-5.2 Instant. View the products that work with GPT-5.2 Instant in the table below.

What are API Gateways for GPT-5.2 Instant?

API gateways act as centralized entry points that manage, secure, and route requests between clients and backend services in an application or microservices architecture. They handle essential functions such as authentication, rate limiting, load balancing, caching, and request transformation to optimize performance and security. By consolidating these controls, API gateways simplify communication, reduce latency, and ensure consistent governance across multiple APIs. They also provide analytics and monitoring to help developers track usage and detect issues in real time. Ultimately, API gateways improve scalability, reliability, and security for modern, distributed applications. Compare and read user reviews of the best API Gateways for GPT-5.2 Instant currently available using the table below. This list is updated regularly.

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    FastRouter

    FastRouter

    FastRouter

    FastRouter is a unified API gateway that enables AI applications to access many large language, image, and audio models (like GPT-5, Claude 4 Opus, Gemini 2.5 Pro, Grok 4, etc.) through a single OpenAI-compatible endpoint. It features automatic routing, which dynamically picks the optimal model per request based on factors like cost, latency, and output quality. It supports massive scale (no imposed QPS limits) and ensures high availability via instant failover across model providers. FastRouter also includes cost control and governance tools to set budgets, rate limits, and model permissions per API key or project, and it delivers real-time analytics on token usage, request counts, and spending trends. The integration process is minimal; you simply swap your OpenAI base URL to FastRouter’s endpoint and configure preferences in the dashboard; the routing, optimization, and failover functions then run transparently.
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