GPT-6.1 Terra
GPT-6.1 Terra is OpenAI's balanced mid-tier model for everyday work, combining detailed visual reasoning with precise computer use and clearer writing.
Model Overview
Capabilities, design details, and architectural traits
GPT-6.1 Terra - Fast and capable computer use at scale
GPT-6.1 Terra is OpenAI's balanced mid-tier model, sitting between the lightweight Luna and the flagship Sol and Astra tiers. It is built for the communication and computer-based tasks that fill the workday: drafting proposals, interpreting technical drawings, filling out forms, and editing videos. OpenAI positions it as a step up from GPT-5.6 Terra, delivering more capability for high-volume, everyday work.
| Trait | Detail |
|---|---|
| Tier placement | Mid-tier workhorse in OpenAI's four-class lineup: Luna, Terra, Sol, Astra |
| Core combination | Detailed visual reasoning plus precise computer use, alongside clearer, more natural writing |
| Speed | Completes tasks over three times faster than both GPT-6 Astra and GPT-6.1 Sol |
| Access | Available in ChatGPT Work, Codex, GitHub Copilot, and the API as gpt-6.1-terra |
From visual understanding to action
Terra's defining workflow is turning what it sees on screen into action. It converts professional inputs such as architectural drawings into 3D models, and it uses desktop apps to complete multistep tasks, surpassing GPT-5.6 Terra.
Alignment and safety behavior
Terra inherits the alignment improvements of the GPT-6 series. OpenAI reports it is more likely to stay within scope and honestly disclose blockers to the user, and it showed strong resistance to prompt-injection attacks designed to divert it from the user's task. It meets the Critical threshold in cybersecurity under OpenAI's Preparedness Framework.
Benchmark Performance
Independent evaluations · Artificial Analysis
Accuracy & Capability Details
Compare Models Side-by-Side
Evaluate specifications, pricing, and independent benchmark indices
| Model Details | |||
|---|---|---|---|
| General Info | |||
| Provider | OpenAI | Anthropic | |
| Release Date | October 26, 2026 | November 9, 2026 | October 28, 2026 |
| Knowledge Cutoff | - | - | - |
| Context & Limits | |||
| Context Window | 1.1M Best Context Window | 1M | 1.0M |
| Pricing (per 1M tokens) | |||
| Input Pricing | $1 Best Input Pricing | $8 | $2 |
| Output Pricing | $5 Best Output Pricing | $40 | $10 |
| Modalities | |||
| Inputs | textimagefile | textimagefile | text |
| Outputs | text | text | text |
| Benchmarks (0-100) | |||
| Intelligence Index | 51.3 | 64.6 Best Intelligence Index | 60.0 |
| Coding Index | - | - | - |
| Agentic Index | - | - | - |
Humanity's Last Exam
Extremely difficult logical reasoning and knowledge.
Long Context Reasoning
Logical reasoning over long context windows.
SciCode Benchmark
Scientific coding and mathematical modeling.
Independent evaluation data provided by Artificial Analysis. To view the latest benchmarks and full details, visit their official site.
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