GPT-5.6 Terra Pro
GPT-5.6 Terra Pro is an AI model developed by OpenAI that is optimized for complex reasoning tasks. It features a large context window of over one million tokens and supports both file and image inputs to generate text responses.
GPT-5.6 Terra Pro specs and pricing
- Provider: OpenAI
- Released: July 9, 2026
- Context window: 1.1M tokens
- Max output: 128K tokens
- Input: files, images, text
- Output: text
- Price: $2.00 input / $12 output per 1M tokens
- Reasoning: yes
- Tool calling: yes
What GPT-5.6 Terra Pro is good at
- Analyzing complex documents and files
- Processing visual information alongside text
- Executing multi-step reasoning tasks
To-dos to try with GPT-5.6 Terra Pro
- Upload a long technical manual and ask the model to summarize the troubleshooting steps
- Provide an image of a handwritten diagram and ask for a structured text explanation
- Input a series of project requirements and request a detailed execution plan
FAQ
- Who developed GPT-5.6 Terra Pro? This model is developed and provided by OpenAI.
- Can this model process images? Yes, GPT-5.6 Terra Pro accepts image files as input alongside text and other file types.
- How much does GPT-5.6 Terra Pro cost? GPT-5.6 Terra Pro costs $2.00 per million input tokens and $12 per million output tokens through OpenRouter. In todo.is a typical agent step costs about 7.28 credits ($1 = 100 credits).
- What is the context window of GPT-5.6 Terra Pro? GPT-5.6 Terra Pro can read up to 1.1M tokens at once and write up to 128K tokens in one reply.
- Can I use GPT-5.6 Terra Pro without coding? Yes. In todo.is you pick GPT-5.6 Terra 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.