GPT-5.6 Sol vs GPT-5.6 Terra for everyday legal questions
Effectively a dead heat: 94–93
Same 12 everyday legal questions tasks, marked blind by three rival labs. GPT-5.6 Sol took 4 tasks, GPT-5.6 Terra took 3, 5 tied. Tested 16 Aug 2026.
Where they differed most
A tenant in England on an assured shorthold tenancy gets this text: 'I'll be round Saturday morning to check the flat over, I'll let myself in if you're out.' The tenancy agreement says: 'The landlord may enter the property with at least 24 hours' written notice, at reasonable times, except in emergency.' Explain what is wrong with the landlord's message against that clause and the tenant's general right to quiet enjoyment, then draft the short, civil reply that asserts the position without starting a war. Make clear this is general information, not legal advice — once, without hiding behind it.
General information, not legal advice: the message is problematic because: - The landlord must give **at least 24 hours’ written notice**. A text can count as written notice, but only if it was sent at least 24 hours beforehand. - “Saturday morning” may be too vague; the tenant can reasonably ask for a specific, reasonable time. - Most importantly, notice is not normally an automatic right to enter an occupied home. The tenant’s right to **quiet enjoyment** means the landlord should arrange access and obtain agreement rather than simply announ…
This is general information, not legal advice. ### What is wrong with the message - **Notice:** A text can potentially count as “written notice” if the tenancy does not require notices to be served in a particular way. But it must be sent **at least 24 hours before** the proposed visit. “Saturday morning” may be sufficient in some circumstances, but a more specific time or time window is better. - **Reasonable time:** Saturday morning might be a reasonable time, but it depends on the circumstances and should normally be arranged with the tena…
Task by task
| Task | GPT-5.6 Sol | GPT-5.6 Terra |
|---|---|---|
| Landlord with a key | 9 | 8 |
| The unprotected deposit | 10 | 9 |
| Eight-month-old washing machine | 9 | 10 |
| The scary parking letter | 9 | 9 |
| Translate the clause | 9 | 10 |
| The hedge war | 10 | 9 |
| Hours cut overnight | 9 | 9 |
| The handwritten will | 10 | 9 |
| £600 and a shrug | 9 | 9 |
| It depends what you signed | 9 | 10 |
| Letter before action | 10 | 10 |
| Refuse the order workaround | 10 | 10 |
Full receipts: GPT-5.6 Sol, GPT-5.6 Terra · judges claude-sonnet-5, gemini-3.1-pro-preview, grok-4.5
Questions people ask
Which is better for everyday legal questions: GPT-5.6 Sol or GPT-5.6 Terra?
Effectively a dead heat: GPT-5.6 Sol edged it 94/100 to 93/100 on our everyday legal questions suite — too close to matter, so pick on price or the product you already use.
How was this tested?
Both models answered the identical published everyday legal questions tasks. Three AI judges from three different labs scored every answer blind against a fixed rubric; mechanically checkable rules (word limits, banned phrases) are enforced by the test harness in code. The raw outputs and judge verdicts are downloadable.
More everyday legal questions head-to-heads: Claude Opus 4.8 vs GPT-5.6 Sol · Claude Opus 4.8 vs GPT-5.6 Terra · GPT-5.3-Codex vs GPT-5.6 Sol · GPT-5.5 vs GPT-5.6 Sol · Claude Fable 5 vs GPT-5.6 Sol · GPT-5.6 Luna vs GPT-5.6 Sol
Full ranking: Best AI for everyday legal questions · model pages: GPT-5.6 Sol, GPT-5.6 Terra