GPT-5.6 Terra vs Kimi K3 for everyday legal questions
Effectively a dead heat: 93–91
Same 12 everyday legal questions tasks, marked blind by three rival labs. GPT-5.6 Terra took 4 tasks, Kimi K3 took 1, 7 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.
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…
Quick caveat, said once: this is general information about the usual legal position in England, not legal advice on the specific situation. ## What the message gets wrong **1. Notice is not permission.** This is the big one. Even a properly worded 24-hour notice doesn't entitle a landlord to walk in. The tenant has exclusive possession of the flat — that's what makes it a tenancy — together with an implied right to "quiet enjoyment" (which means undisturbed occupation, not silence). A right-of-entry clause lets the landlord *request* access;…
Task by task
| Task | GPT-5.6 Terra | Kimi K3 |
|---|---|---|
| Landlord with a key | 8 | 9 |
| The unprotected deposit | 9 | 9 |
| Eight-month-old washing machine | 10 | 9 |
| The scary parking letter | 9 | 9 |
| Translate the clause | 10 | 10 |
| The hedge war | 9 | 9 |
| Hours cut overnight | 9 | 9 |
| The handwritten will | 9 | 8 |
| £600 and a shrug | 9 | 8 |
| It depends what you signed | 10 | 9 |
| Letter before action | 10 | 10 |
| Refuse the order workaround | 10 | 10 |
Full receipts: GPT-5.6 Terra, Kimi K3 · 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 Terra or Kimi K3?
Effectively a dead heat: GPT-5.6 Terra edged it 93/100 to 91/100 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 Terra · Claude Opus 4.8 vs Kimi K3 · GPT-5.6 Sol vs GPT-5.6 Terra · GPT-5.6 Sol vs Kimi K3 · GPT-5.3-Codex vs GPT-5.6 Terra · GPT-5.5 vs GPT-5.6 Terra
Full ranking: Best AI for everyday legal questions · model pages: GPT-5.6 Terra, Kimi K3