"GPT-6.1 Terra" is a fresh OpenAI model word — announced October 26, 2026 in an official post titled "Introducing GPT-6.1 Terra" observed. This page is unusually short by design. Our standard for model-word pages is first-hand sourcing, and OpenAI's site blocks our direct capture of the announcement, so what we can confirm is title-level: the vendor, the date, and the announcement's official title. Everything launch-week commentary will tell you about Terra — specs, prices, benchmark rankings, "computer-use killer" framing — is, as of our November 1, 2026 capture, either in OpenAI's own pages or not knowable at all. We leave the blank honest: details await official documentation. Labels: vendor claim / observed / analysis.
| Field | What we can say |
|---|---|
| Name | GPT-6.1 Terra observed |
| Maker | OpenAI observed |
| Announced | October 26, 2026 observed |
| Official announcement | "Introducing GPT-6.1 Terra" (OpenAI) observed |
| Positioning | Not captured first-hand by us — details await official documentation analysis |
| Specs / context window | Not published in any source we can verify analysis |
| Pricing | Not published in any source we can verify — check OpenAI's pricing pages analysis |
| Benchmarks | None we can vouch for; no independent head-to-head exists yet analysis |
| Availability | Unverified by us; OpenAI's own pages are the reference analysis |
Model-word searches spike within days of an announcement, and content farms fill the gap with invented spec tables and fake benchmark comparisons — the same pattern we documented on the pre-release Haiku 5.5 tracker analysis. Terra's launch week is no exception. Our rule is simple: a number needs a first-hand source or it does not appear here. For Terra we hold exactly three confirmed facts (vendor, date, title), and we would rather show three honest rows than a table that reads well and knows nothing analysis. When OpenAI's documentation is directly capturable, this page will grow — with labels and dates analysis.
Names carry family structure even when spec sheets do not analysis. Our earlier pages on this launch window track: Sol, the GPT-6.1 family name (Sol 6.1 explained, GPT Sol 6.1); Luna, whose directory-captured pricing was the anchor of GPT-6 Luna price; and Astra, the GPT-6 predecessor in GPT-6.1 Sol vs Astra observed. Terra, by its name, joins the GPT-6.1 generation alongside Sol analysis. What the name does not tell you: whether Terra is a tier above, below, or beside Sol in capability — that is a documentation question, and the answer belongs to OpenAI's announcement analysis.
Terra's announcement did not land in a quiet week: OpenAI's October 26 post, Google DeepMind's Genie 4 world-simulation model on October 27, and Google's Gemini 4 Carbon frontier model on October 28 observed. Launch-week attention splits three ways, which is partly why Terra commentary is thinner than a normal OpenAI release — and partly why rumor has room to grow analysis. The cross-vendor framing lives on Gemini 4 Carbon vs GPT-6.1 Terra, where the comparison is limited to what both sides actually confirm analysis.
It is announced — October 26, 2026 observed. Announced and broadly available are different states, and we cannot verify Terra's availability first-hand; OpenAI's official pages are the reference analysis.
The names are siblings in the GPT-6.1 window, but "successor" is a capability claim nobody outside OpenAI can confirm for these versions analysis. Treat any successor story as a placeholder until OpenAI documents the relationship.
Not published in any source we can verify analysis. We do not republish prices without a first-hand source; OpenAI's official pricing pages are where the number belongs — see also GPT-6 Luna price for how we treat price anchors analysis.
There is no verified basis for a migration decision yet — no specs, no benchmarks, no published trade-offs we can vouch for analysis. Trial on your own workloads when access and documentation both exist; until then, Sol remains the model this site's GPT-6.1 pages are built on analysis.
Because we could not capture it directly, and summarizing a page we cannot read is how rumors start analysis. This page will grow the moment first-hand capture is possible — that is the deal analysis.
This page is descriptive and independent, last reviewed November 1, 2026. Not affiliated with OpenAI. "OpenAI" and "GPT" are trademarks of their respective owners. Facts on this page are limited to title-level announcements; unverified claims are deliberately omitted.