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GPT-5 Mini
openai/gpt-5-miniGPT-5 Mini is a compact version of GPT-5, designed to handle lighter-weight reasoning tasks. It provides the same instruction-following and safety-tuning benefits as GPT-5, but with reduced latency and cost....
Context
400K tokens
Input, 1M tokens
$0.14
Output, 1M tokens
$1.15
Benchmark
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Uptime and speed
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Pricing
Charged from your prepaid balance for the tokens actually used.
Input tokens$0.14 per 1M tokens
Output tokens$1.15 per 1M tokens
Cache read$0.01 per 1M tokens
Apps and activity
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Technical details
Model IDopenai/gpt-5-mini
Context window400K tokens
AcceptsText, Images, Files, pdf
ProducesText
TokenizerGPT
Max output tokens128,000
How to connect
The API is OpenAI-compatible: the official SDKs, LangChain and any client with a "base URL" field work.
import OpenAI from 'openai'
const client = new OpenAI({
baseURL: 'https://getmegabrain.com/api/gateway/v1',
apiKey: process.env.MEGABRAIN_API_KEY,
})
const response = await client.chat.completions.create({
model: 'openai/gpt-5-mini',
messages: [{ role: 'user', content: 'Hello!' }],
})Start using GPT-5 Mini
Create a free account, get a key in your dashboard and send your first request. Top up your balance when you need it.