Private Models

OpenAI: GPT-5 Nano

openai/gpt-5-nano
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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.

Modalities
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In / out price
$0.05 / $0.40per 1M
Context
400K
Released
Aug 8, 2025

Providers

RedPill routes this private model across verified providers with automatic fallbacks. Pricing is unified, so you pay the same price no matter which provider serves your request, while live metrics show first-token latency, speed, and uptime.

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Gateway API

Call this model through RedPill's OpenAI-compatible API.

  1. Create an API key
  2. Set REDPILL_API_KEY
  3. Run the request
Create keyDocumentation
Working with agentsConnect RedPill to agent frameworks and runtimes.
import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://api.redpill.ai/v1",
  apiKey: process.env.REDPILL_API_KEY,
});

const response = await client.chat.completions.create({
  model: "openai/gpt-5-nano",
  messages: [{ role: "user", content: "Say hello." }],
});

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OpenAI: GPT-5 Nano | RedPill