GPT-4.1 Nano
For tasks that demand low latency, GPT‑4.1 nano is the fastest and cheapest model in the GPT-4.1 series. It delivers exceptional performance at a small size with its 1 million...
GPT-4.1 Nano specs and pricing
- Provider: OpenAI
- Released: April 14, 2025
- Context window: 1M tokens
- Max output: 943K tokens
- Input: images, text, files
- Output: text
- Price: $0.10 input / $0.40 output per 1M tokens
- Tool calling: yes
FAQ
- How much does GPT-4.1 Nano cost? GPT-4.1 Nano costs $0.10 per million input tokens and $0.40 per million output tokens through OpenRouter. In todo.is a typical agent step costs about 0.34 credits ($1 = 100 credits).
- What is the context window of GPT-4.1 Nano? GPT-4.1 Nano can read up to 1M tokens at once and write up to 943K tokens in one reply.
- Can I use GPT-4.1 Nano without coding? Yes. In todo.is you pick GPT-4.1 Nano as your agent's model and write to-dos in plain words, on the web, the Android app, WhatsApp or Telegram. No API key needed: credits are included, or you can bring your own key.
JavaScript is required to use the todo.is app.