GPT-5.6 Terra
ReleasedModel GPT-5.6 Terra is a model by OpenAI, released on 9 Jul 2026 (3 months ago).
- Where can it be used?
- Evidenced as usable in: ChatGPT Work, Codex, GitHub Copilot, Microsoft 365 Copilot (verified for Cowork only)For 10 more recorded products there is no statement; that does not mean “not available”.Available in the provider’s API
- Did we test it?
- No lab run published yet
- Last change
- 3 months ago
- Evidence
- 5 sources from 4 sitesRegistry entry:
What backs this up?
Three kinds of evidence, kept apart. None of them proves AGI on its own; where one is missing, the page says so.
- In real productsEvidenced as usable in: ChatGPT Work, Codex, GitHub Copilot, Microsoft 365 Copilot (verified for Cowork only)
- agi.jetzt PrüfstandNo published run yet.
- Public benchmarks5 reported results on 5 benchmarks — each with its source
A model and the product around it are different things: a result for one does not carry over to the other.
Public benchmark results
Results reported by benchmark maintainers or providers, each with its source. They are not averaged and not compared across benchmarks; a provider result is self-reported. Some sources are data files of the benchmark’s own site rather than pages; they are marked as machine-readable.
- GPT-5.6 Terra34 %Chartography · v1 · accuracy (expert-range graded), no toolssource as of 03/10/2026 · benchmark maintainer · mode not stated · judge: google/gemini-3.5-flash · tools: no · setting: Inspect AI (surge-ai/chartography) · attempts: 10 · web: no · reasoning: Max · computer use: no · reported as „GPT 5.6 Terra (Max reasoning)“Source: surgehq.ai — Chartography, GPT-5.6 Terra
- GPT-5.6 Terra24.7 %GDP.pdf · v1 · pass rate, all criteria (strict)source as of 03/10/2026 · benchmark maintainer · mode not stated · judge: google/gemini-3.5-flash · tools: no · setting: Inspect AI (surge-ai/gdp-pdf) · attempts: 5 · web: no · reasoning: Medium · computer use: no · reported as „GPT 5.6 Terra (Medium reasoning)“Source: surgehq.ai — GDP.pdf, GPT-5.6 Terra
- GPT-5.6 Terra21.52 %Terminal-Bench · 4.0 · resolution rate (mean of 5 runs)source as of 03/10/2026 · benchmark maintainer · model + harness · Codex · tools: yes · attempts: 5 · pass@k: 1 · reasoning: maxSource: www.tbench.ai — Terminal-Bench, GPT-5.6 Terra
- GPT-5.6 Terra$7,343.21Vending-Bench 2 · 2 · final bank balancesource as of 03/10/2026 · benchmark maintainer · model + harness · Andon Labs Vending-Bench 2 agent environment (email, web search, inventory tools, notes/reminders) · tools: yes · budget: ~1 simulated year; 3000-6000 messages, 60-100M output tokens per run · attempts: 5 · web: yesMachine-readable source: andonlabs.com · data bundle of the website, not linked
- GPT-5.6 Terra69.62 %DeepSWE · 1.1 · pass@1 (mean of 4 runs)source as of 22/09/2026 · benchmark maintainer · model + harness · mini-swe-agent · tools: yes · attempts: 4 · pass@k: 1 · reasoning: max · reported as „gpt-5-6-terra“Source: deepswe.datacurve.ai — DeepSWE, GPT-5.6 Terra
Where can it be used?
Only recorded availability statements are shown. A missing plan or surface means unknown, not unavailable. Where it applies only to a plan or a region, the row says so. “Rolling out” is not “available”. “Rollout reported” means a rollout was reported, but nothing has supported it for more than 90 days.
| Product | Status | since | Checked | Sources |
|---|---|---|---|---|
| ChatGPT WorkWork · Business | Limited availability | not documented | checked 4 Oct 2026 | |
| ChatGPT WorkWork · Enterprise | Limited availability | not documented | checked 4 Oct 2026 | |
| ChatGPT WorkWork · Plus | Limited availability | not documented | checked 4 Oct 2026 | |
| ChatGPT WorkWork · Pro | Limited availability | not documented | checked 4 Oct 2026 | |
| CodexCodex · Business | Limited availability | not documented | checked 4 Oct 2026 | |
| CodexCodex · Enterprise | Limited availability | not documented | checked 4 Oct 2026 | |
| CodexCodex · Free | Limited availability | not documented | checked 4 Oct 2026 | |
| CodexCodex · Go | Limited availability | not documented | checked 4 Oct 2026 | |
| CodexCodex · Plus | Limited availability | not documented | checked 4 Oct 2026 | |
| CodexCodex · Pro | Limited availability | not documented | checked 4 Oct 2026 | |
| GitHub CopilotCopilot · Business | Limited availability | not documented | checked 11 Oct 2026 | 1docs.github.com |
| GitHub CopilotCopilot · Enterprise | Limited availability | not documented | checked 11 Oct 2026 | 1docs.github.com |
| GitHub CopilotCopilot · Max | Limited availability | not documented | checked 11 Oct 2026 | 1docs.github.com |
| GitHub CopilotCopilot · Pro | Limited availability | not documented | checked 11 Oct 2026 | 1docs.github.com |
| GitHub CopilotCopilot · Pro Plus | Limited availability | not documented | checked 11 Oct 2026 | 1docs.github.com |
| GitHub Copilot | Limited availability | not documented | checked 11 Oct 2026 | 1docs.github.com |
| Microsoft 365 CopilotCowork | Limited availability | not documented | checked 11 Oct 2026 | 1learn.microsoft.com |
Where a start is “not documented”, a source check found the state in place; the source names no start date.
No statement on record for 10 further products: ChatGPT, Claude, Claude Code, Claude Enterprise, Claude Team, Gemini, Gemini for Google Workspace, Grok, Langdock, Le Chat Enterprise. No statement is not the same as not available.
Developer APIs
Developer access — not a statement about any work product.
| Product | Status | since | Checked | Sources |
|---|---|---|---|---|
| OpenAI APIAPI | Available | not documented | checked 3 Oct 2026 | 1developers.openai.com |
What did we test?
No lab run of GPT-5.6 Terra is published yet.
Nothing is shown until a real run exists. See what the lab tests:
Lifecycle and history
The dates the provider confirmed, and every recorded period of availability. A current period shows its checked status; one without a source check is marked not verified.
What changed?
Sourced changes concerning this model, newest first.
- 3 months agoadded to the record on 30 Sept 2026
1developers.openai.com
Evidence
Every source document behind the facts on this page, by domain.
| Domain | Docs | Documents |
|---|---|---|
| developers.openai.com | 2 | |
| docs.github.com | 1 | |
| help.openai.com | 1 | |
| learn.microsoft.com | 1 |