GPT-5 Pro
GPT-5 Pro is OpenAI’s most advanced model, offering major improvements in reasoning, code quality, and user experience. It is optimized for complex tasks that require step-by-step reasoning, instruction following, and...
GPT-5 Pro specs and pricing
- Provider: OpenAI
- Released: October 6, 2025
- Context window: 400K tokens
- Max output: 128K tokens
- Input: images, text, files
- Output: text
- Price: $15 input / $120 output per 1M tokens
- Reasoning: yes
- Tool calling: yes
FAQ
- How much does GPT-5 Pro cost? GPT-5 Pro costs $15 per million input tokens and $120 per million output tokens through OpenRouter. In todo.is a typical agent step costs about 58.8 credits ($1 = 100 credits).
- What is the context window of GPT-5 Pro? GPT-5 Pro can read up to 400K tokens at once and write up to 128K tokens in one reply.
- Can I use GPT-5 Pro without coding? Yes. In todo.is you pick GPT-5 Pro 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.