OpenAI: GPT-6.1 Terra API
A fast, efficient OpenAI GPT-6 model for visual reasoning, precise computer use, and clear, natural writing.
- Context window: 1,050,000 tokens
- Max output: 128,000 tokens
- Input: text, image
- Output: text
- Reasoning: Supported
- Tool calling: Supported
- File input: Supported
- Released: 2026-10-26
- Knowledge cutoff: 2026-06-01
Frequently Asked Questions
What is the context window of GPT-6.1 Terra?
GPT-6.1 Terra supports a context window of up to 1,050,000 tokens.
Does GPT-6.1 Terra support function calling?
Yes. GPT-6.1 Terra supports tool / function calling.
Does GPT-6.1 Terra support reasoning?
Yes. GPT-6.1 Terra is a reasoning-capable model.
What is the knowledge cutoff of GPT-6.1 Terra?
The knowledge cutoff of GPT-6.1 Terra is 2026-06-01.