GPT-6.1 Terra
OpenAI’s fast, lower-cost GPT-6 model for computer use, visual reasoning and writing.
GPT-6.1 Terra is the efficient tier of OpenAI’s GPT-6 line, below GPT-6.1 Sol and GPT-6 Astra. OpenAI aims it at visual reasoning, precise computer use and everyday writing, at half the per-token price of GPT-6.1 Sol. Reasoning effort runs from none to max.
- Provider
- OpenAI
- Type
- Language model
- Released
- Oct 26, 2026
- Context window
- 1.1M tokens
- Max output
- 128K tokens
- Price
- $1.00 input / $5.00 output per 1M tokens
- Input
- text, image
- Output
- text
- Open weights
- No
- Knowledge cutoff
- Jun 1, 2026
Best for
- Agents
- Vision
- Writing
- Chat & assistants
Strengths
- Half GPT-6.1 Sol’s price
- Computer use
- Image input
More from OpenAI
- GPT-6 Astra — OpenAI. OpenAI’s flagship for deep research, science and end-to-end engineering.
- GPT-6.1 Sol — OpenAI. OpenAI’s mid-tier GPT-6 model for agentic coding and computer use.
- GPT-6 Luna — OpenAI. OpenAI’s fast, low-cost GPT-6 tier for chat, classification and light agents.
- GPT-5.6 Terra — OpenAI. Balanced GPT-5.6 model for everyday coding and reasoning.
- gpt-oss-120b — OpenAI. OpenAI’s Apache-2.0 open-weight reasoning model; runs on a single 80GB GPU.
- gpt-oss-20b — OpenAI. Compact open-weight reasoning model that runs on consumer hardware.
- GPT-5.4 Image 2 — OpenAI. OpenAI’s native image generation and editing model.
- GPT-6 Luna Decisions — OpenAI. GPT-6 Luna served through OpenAI’s Decisions API for typed, probabilistic answers.