OpenAI · tested in Taskade Genesis
GPT-5.6 Terra in Taskade
GPT-5.6 Terra from OpenAI runs on the Max and Enterprise plans. We last tested it on Oct 8, 2026 in TSK-1, our app-building test.
- Status
- Available
- Plan
- Max and Enterprise
- Where to pick it
- More models or All Models
- Your own key
- OpenAI
- Last test
- Context window
- 1.05Mtokens
- Max output
- 128Ktokens
- Released
- Knowledge cutoff
- Where it runs
- 8services
TSK-1 scorecard for the GPT family
TSK Score
GPT family, across real apps made in Taskade Genesis
- Interfaceready to share
- Strong
- Taskcompletes your task
- Leading
- Memorykeeps your data
- Strong
- Adapthandles follow-up edits
- Leading
The fastest model in nearly every test it enters, and the first to pass every check in a single run: it built the app, took a form submission, put every answer in the right place, ran the automation, and answered questions about the data.
MoreLess
It also turned its weakest result around, from three tests where none of the brief came through word for word to all 32 questions word for word.
Published scores
Benchmark scores that OpenAI and test sites published for GPT-5.6 Terra. Taskade did not re-run them. Lab-reported marks a score from OpenAI itself.
| Benchmark | Score | Source |
|---|---|---|
| SWE-Bench Proresolve rate · OpenAILab-reported | 63.4% | OpenAILab-reported |
| Terminal-Benchsuccess rate · v2.1 · OpenAILab-reported | 87.4% | OpenAILab-reported |
| OSWorldsuccess rate · v2.0 · OpenAILab-reported | 50.2% | OpenAILab-reported |
| BrowseCompaccuracy · OpenAILab-reported | 87.5% | OpenAILab-reported |
| Toolathlonsuccess rate · OpenAILab-reported | 53.1% | OpenAILab-reported |
| GPQA Diamondaccuracy · OpenAILab-reported | 92.9% | OpenAILab-reported |
| FrontierMathaccuracy · v2 · Tier 1-3 · OpenAILab-reported | 84.9% | OpenAILab-reported |
| MMMU Proaccuracy · no tools · OpenAILab-reported | 80.7% | OpenAILab-reported |
More published scores (4)
| Benchmark | Score | Source |
|---|---|---|
| DeepSWEresolve rate · v1.1 · OpenAILab-reported | 69.6% | OpenAILab-reported |
| Agents' Last ExamOpenAILab-reported | 50.4 | OpenAILab-reported |
| Artificial Analysis Intelligence Indexindex score · v4.1 · max · Artificial Analysis | 55 | Artificial Analysis |
| Artificial Analysis Coding Agent Indexindex score · v1.1 · max · Codex · Artificial Analysis | 77.4 | Artificial Analysis |
Scores collected by models.dev (MIT). Each source links the page that published the score.
Versions tested
Open a version to read its findings.
GPT-5.6 TerraTested Oct 202613 findings
The fastest model in nearly every test it enters, and the first to pass every check in a single run: it built the app, took a form submission, put every answer in the right place, ran the automation, and answered questions about the data. It also turned its weakest result around, from three tests where none of the brief came through word for word to all 32 questions word for word.
The first model to pass all five checks in one run: built the app, took a submission, saved every answer in the right field, ran the automation, and answered questions about the data.
Fastest of the test: 8 minutes 26 seconds.
Both builds carried all 32 questions word for word, after three tests where none of the four came through. A change of setting turned it around.
Terra's premium setting was the worst value we have measured on the client sign-up form: far more expensive than Luna, and it delivered less, a single page rewritten 19 times.
Best all-round match tracker and best client sign-up build of the test: form to saved score worked on the first try.
The quality pick in a five-model test of identical prompts.
Fastest complete client sign-up build of the test at 5 minutes 6 seconds; it left the scoring automation out.
Finished a two-page sales pipeline with a daily call brief in 10 minutes 47 seconds.
Finished the governance office in under 6 minutes and the fleet inspection in under 5.
Passed all five follow-up-edit tests; its recipe box was a single page.
Built a clean match tracker in about 11 minutes, but its match form offered only four heroes from its own sample list, so a player could not log the hero they played.
Built the family intake form twice, about 4 minutes each, and both saved every answer and both photos. One opened in a dark look where the request asked for cream paper. The other asked first who could open the teacher page, then put it behind a teacher sign-in.
Built the Dota 2 match tracker twice in under 4 and a half minutes, and both added a ranked heroes page when asked. One build labeled its starter matches, and the other ran wider than a phone screen on every page.
Results by task
Model facts
The token limits are the most the model accepts. Taskade can run it with lower limits.
- Last updated
- Input types
- Text, Images, PDF
- Output types
- Text
- Reasoning
- Yes
- Tool calling
- Yes
- File attachments
- Yes
- Structured output
- Yes
- Open weights
- No
- Reasoning effort
- NoneLowMediumHighExtra highMax
Published specs from the model maker, via models.dev (MIT).
Run GPT-5.6 Terra with your own key
Taskade runs it for you. You can also pick it with your own key in a custom agent.
| Key provider | Plan |
|---|---|
| OpenAI | Pro and up |
Where it runs
Services outside Taskade that serve GPT-5.6 Terra, from models.dev. Each link opens in a new tab. In Taskade, your own key works only through the key providers on this page.
How to choose GPT-5.6 Terra
- In the builder chat, open the model menu and choose More models. Then pick the model.
- In the agent editor, pick the model under All Models.
- If your model menu does not show the model, Taskade uses TSK-Auto instead.
Where GPT ranks
TSK Score out of 100.
Compare GPT
Other OpenAI models
FAQ
Which Taskade plans include GPT-5.6 Terra?
GPT-5.6 Terra runs in Taskade on the Max and Enterprise plans. If your model menu does not show it, Taskade uses TSK-Auto instead.
Has Taskade tested GPT-5.6 Terra?
Yes. We last tested GPT-5.6 Terra on Oct 8, 2026 in the TSK-1 Benchmark. The fastest model in nearly every test it enters, and the first to pass every check in a single run: it built the app, took a form submission, put every answer in the right place, ran the automation, and answered questions about the data. It also turned its weakest result around, from three tests where none of the brief came through word for word to all 32 questions word for word.
How do I choose GPT-5.6 Terra in Taskade?
In the builder chat, open the model menu and choose More models. Then pick GPT-5.6 Terra. In the agent editor, pick it under All Models.
Can I use my own API key for GPT-5.6 Terra?
Yes. In a custom agent, you can pick GPT-5.6 Terra with your own key from OpenAI (Pro and up). Your provider bills the model use to your own account.
Who makes GPT-5.6 Terra?
OpenAI makes GPT-5.6 Terra. Taskade runs it on the Max and Enterprise plans, beside frontier models from other top AI labs.