OpenAI: GPT-5 Nano
GPT-5-Nano is the smallest and fastest variant in the GPT-5 system, optimized for developer tools, rapid interactions, and ultra-low latency environments. While limited in reasoning depth compared to its larger counterparts, it retains key instruction-following and safety features. It is the successor to GPT-4.1-nano and offers a lightweight option for cost-sensitive or real-time applications.
Providers for OpenAI: GPT-5 Nano
RedPill routes requests across these providers with automatic fallbacks to maximize uptime. Pricing is unified — you pay the same price no matter which provider serves your request.
| Provider | TTFT | Throughput | Uptime |
|---|---|---|---|
API
RedPill provides a unified completion API to all models & providers that you can call directly, or using the OpenAI SDK. Additionally, some third-party SDKs are available.
fetch("https://api.redpill.ai/v1/chat/completions", {
method: "POST",
headers: {
"Authorization": "Bearer <YOUR-REDPILL-API-KEY>",
"Content-Type": "application/json"
},
body: JSON.stringify({
"model": "openai/gpt-5-nano",
"messages": [
{
"role": "user",
"content": "What is the meaning of life?"
}
]
})
})
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