GPT-5.6 Luna

Released

Model GPT-5.6 Luna 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 CopilotRolling out: ChatGPTFor 10 more recorded products there is no statement; that does not mean “not available”.Available in the provider’s API
Did we test it?
6 lab runs on 6 tasks
Last change
3 months ago
Evidence
4 sources from 3 sites
Registry entry:
checked 11 Oct 2026

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.

  1. In real productsEvidenced as usable in: ChatGPT Work, Codex, GitHub Copilot · Rolling out: ChatGPT
  2. agi.jetzt Prüfstand6 published runs on 6 tasksvia Codex CLI: model + harness
  3. 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 Luna31.4 %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 Luna (Max reasoning)“Source: surgehq.ai — Chartography, GPT-5.6 Luna
  • GPT-5.6 Luna22.7 %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 Luna (Medium reasoning)“Source: surgehq.ai — GDP.pdf, GPT-5.6 Luna
  • GPT-5.6 Luna17.27 %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 Luna
  • GPT-5.6 Luna$4,094.71Vending-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 Luna67.19 %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-luna“Source: deepswe.datacurve.ai — DeepSWE, GPT-5.6 Luna

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.

ProductStatussinceCheckedSources
ChatGPT WorkWork · BusinessLimited availabilitynot documented
checked 4 Oct 2026
1help.openai.com
ChatGPT WorkWork · EnterpriseLimited availabilitynot documented
checked 4 Oct 2026
1help.openai.com
ChatGPT WorkWork · PlusLimited availabilitynot documented
checked 4 Oct 2026
1help.openai.com
ChatGPT WorkWork · ProLimited availabilitynot documented
checked 4 Oct 2026
1help.openai.com
CodexCodex · BusinessLimited availabilitynot documented
checked 4 Oct 2026
1help.openai.com
CodexCodex · EnterpriseLimited availabilitynot documented
checked 4 Oct 2026
1help.openai.com
CodexCodex · PlusLimited availabilitynot documented
checked 4 Oct 2026
1help.openai.com
CodexCodex · ProLimited availabilitynot documented
checked 4 Oct 2026
1help.openai.com
GitHub CopilotCopilot · BusinessLimited availabilitynot documented
checked 11 Oct 2026
1docs.github.com
GitHub CopilotCopilot · EnterpriseLimited availabilitynot documented
checked 11 Oct 2026
1docs.github.com
GitHub CopilotCopilot · MaxLimited availabilitynot documented
checked 11 Oct 2026
1docs.github.com
GitHub CopilotCopilot · ProLimited availabilitynot documented
checked 11 Oct 2026
1docs.github.com
GitHub CopilotCopilot · Pro PlusLimited availabilitynot documented
checked 11 Oct 2026
1docs.github.com
GitHub CopilotLimited availabilitynot documented
checked 11 Oct 2026
1docs.github.com
ChatGPTApp (default model) · FreeRolling outnot documented
checked 4 Oct 2026
1help.openai.com
ChatGPTApp (default model) · GoRolling outnot documented
checked 4 Oct 2026
1help.openai.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: Claude, Claude Code, Claude Enterprise, Claude Team, Gemini, Gemini for Google Workspace, Grok, Langdock, Le Chat Enterprise, Microsoft 365 Copilot. No statement is not the same as not available.

All work products →

Developer APIs

Developer access — not a statement about any work product.

ProductStatussinceCheckedSources
OpenAI APIAPIAvailablenot documented
checked 3 Oct 2026
1developers.openai.com

What did we test?

Each tile is something this model built in the lab, through the runtime named on it. Narrow evidence about building artifacts — not a verdict on the model.

Screenshot (Desktop) of the artifact GPT-5.6 Luna built for “Präzisions-Edit (Multi-Step)”

Präzisions-Edit (Multi-Step)

artifact-edit-006-avia codex-cli 0.144.5model + harness

Run of 18 Jul 2026

3 of 4 result checks passed

1 render or interaction check not run

Evaluation not published

Screenshot (Desktop) of the artifact GPT-5.6 Luna built for “Interaktive Micro-App”

Interaktive Micro-App

frontend-app-005-avia codex-cli 0.144.5model + harness

Run of 18 Jul 2026

No check was run

4 render and interaction checks not run

Evaluation not published

Screenshot (Desktop) of the artifact GPT-5.6 Luna built for “Brand-Board”

Brand-Board

artifact-brand-004-bvia codex-cli 0.144.5model + harness

Run of 18 Jul 2026

2 format checks passed — no check of the result

2 render and interaction checks not run

Evaluation not published

Screenshot (Desktop) of the artifact GPT-5.6 Luna built for “Aurora/Mesh-Gradient-Art”

Aurora/Mesh-Gradient-Art

artifact-generative-003-bvia codex-cli 0.144.5model + harness

Run of 18 Jul 2026

2 format checks passed — no check of the result

2 render and interaction checks not run

Evaluation not published

Screenshot (Desktop) of the artifact GPT-5.6 Luna built for “Datenviz-Dashboard mit Insights”

Datenviz-Dashboard mit Insights

frontend-dashboard-002-avia codex-cli 0.144.5model + harness

Run of 18 Jul 2026

Check results withdrawn (4 Oct 2026)

1 format check passed — no check of the result · 2 render and interaction checks not run

Evaluation not published

Screenshot (Desktop) of the artifact GPT-5.6 Luna built for “Animierte Hero (CSS-Motion)”

Animierte Hero (CSS-Motion)

artifact-motion-001-bvia codex-cli 0.144.5model + harness

Run of 18 Jul 2026

3 format and presence checks passed — no check of the result

3 render and interaction checks not run

Evaluation not published

Enter the lab →

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.

Announced—not recorded
Released
Deprecated—not recorded
Retired—not recorded
AugSeptOctChatGPT · App (default model)…ChatGPT · App (default model) · Free: Rolling out start not documented – …since the check on 4 Oct 2026ChatGPT · App (default model)…ChatGPT · App (default model) · Go: Rolling out start not documented – …since the check on 4 Oct 2026ChatGPT Work · Work · BusinessChatGPT Work · Work · Business: Limited availability start not documented – …since the check on 4 Oct 2026ChatGPT Work · Work · Enterpr…ChatGPT Work · Work · Enterprise: Limited availability start not documented – …since the check on 4 Oct 2026ChatGPT Work · Work · PlusChatGPT Work · Work · Plus: Limited availability start not documented – …since the check on 4 Oct 2026ChatGPT Work · Work · ProChatGPT Work · Work · Pro: Limited availability start not documented – …since the check on 4 Oct 2026Codex · Codex · BusinessCodex · Codex · Business: Limited availability start not documented – …since the check on 4 Oct 2026Codex · Codex · EnterpriseCodex · Codex · Enterprise: Limited availability start not documented – …since the check on 4 Oct 2026Codex · Codex · PlusCodex · Codex · Plus: Limited availability start not documented – …since the check on 4 Oct 2026Codex · Codex · ProCodex · Codex · Pro: Limited availability start not documented – …since the check on 4 Oct 2026GitHub Copilot · Copilot · Bu…GitHub Copilot · Copilot · Business: Limited availability start not documented – …since the check on 4 Oct 2026GitHub Copilot · Copilot · En…GitHub Copilot · Copilot · Enterprise: Limited availability start not documented – …since the check on 4 Oct 2026GitHub Copilot · Copilot · MaxGitHub Copilot · Copilot · Max: Limited availability start not documented – …since the check on 4 Oct 2026GitHub Copilot · Copilot · ProGitHub Copilot · Copilot · Pro: Limited availability start not documented – …since the check on 4 Oct 2026GitHub Copilot · Copilot · Pr…GitHub Copilot · Copilot · Pro Plus: Limited availability start not documented – …since the check on 4 Oct 2026GitHub CopilotGitHub Copilot: Limited availability start not documented – …since the check on 3 Oct 2026OpenAI API · APIOpenAI API · API: Available start not documented – …since the check on 3 Oct 2026today
Rolling outLimited availabilityAvailabletodayDashed start: the start is not documented — the bar begins on the day a source check found the state, not when availability began.
As a table (17)
EntryStatusFromUntil
ChatGPTApp (default model) · FreeRolling outnot documented…
ChatGPTApp (default model) · GoRolling outnot documented…
ChatGPT WorkWork · BusinessLimited availabilitynot documented…
ChatGPT WorkWork · EnterpriseLimited availabilitynot documented…
ChatGPT WorkWork · PlusLimited availabilitynot documented…
ChatGPT WorkWork · ProLimited availabilitynot documented…
CodexCodex · BusinessLimited availabilitynot documented…
CodexCodex · EnterpriseLimited availabilitynot documented…
CodexCodex · PlusLimited availabilitynot documented…
CodexCodex · ProLimited availabilitynot documented…
GitHub CopilotCopilot · BusinessLimited availabilitynot documented…
GitHub CopilotCopilot · EnterpriseLimited availabilitynot documented…
GitHub CopilotCopilot · MaxLimited availabilitynot documented…
GitHub CopilotCopilot · ProLimited availabilitynot documented…
GitHub CopilotCopilot · Pro PlusLimited availabilitynot documented…
GitHub CopilotLimited availabilitynot documented…
OpenAI APIAPIAvailablenot documented…

What changed?

Sourced changes concerning this model, newest first.

  1. 3 months agoadded to the record on 30 Sept 2026
    1developers.openai.com

All updates →

Evidence

Every source document behind the facts on this page, by domain.