OpenAI API

120 AI Chat lets you connect your own OpenAI API.

API Key Setup Guide

1. Visit platform.openai.com.
2. Go to API Keys in your account settings.
3. Generate and copy your API key.
4. In 120 AI Chat → Settings → AI Providers, paste your key into the OpenAI Key field.

💡 Billing is managed directly by OpenAI.

Example pricing (Mar 2026):

• GPT-5.4: $2.50 / million input tokens, $0.25 / million cached input tokens, $15 / million output tokens.
• GPT-5.4 mini: $0.75 / million input tokens, $0.075 / million cached input tokens, $4.50 / million output tokens.
• GPT-5.4 nano: $0.20 / million input tokens, $0.02 / million cached input tokens, $1.25 / million output tokens.
• GPT-5.4 pro: $30 / million input tokens, $180 / million output tokens.
• GPT-image-1.5: $5 / million text input tokens, $1.25 / million cached text input tokens, $10 / million text output tokens, $8 / million image input tokens, $2 / million cached image input tokens, $32 / million image output tokens.
• Sora 2: $0.10 / second at 720p.

See the latest pricing at OpenAI Pricing.