GPT-5.6 Terra vs Grok 4.5 for presentations and slides
GPT-5.6 Terra wins, 96–91
Same 12 presentations and slides tasks, marked blind by three rival labs. GPT-5.6 Terra took 4 tasks, Grok 4.5 took 2, 6 tied. Tested 16 Aug 2026.
Where they differed most
You presented these facts to the school governors: reading scores up 12% since the new library scheme; £3,000 needed to extend it to Years 3 and 4; volunteer readers doubled to 22. Now write what you would SAY to a Year 6 assembly about the same scheme (max 100 words) — same truth, their language, and one concrete thing you are asking the children themselves to do.
Good morning, Year 6. Our new library scheme is making a real difference: reading scores have risen by 12% since it began. We now have 22 volunteer readers—twice as many as before—helping children enjoy books and grow in confidence. We want to extend the scheme to Years 3 and 4, but we need £3,000 to do it. You can help today: choose a favourite book and write a short recommendation card for a younger child. Your recommendation could help someone discover a book they love.
**What I’d say to the Year 6 assembly:** “Hi Year 6. Since we started the new library scheme, reading scores across the school are up 12%. That’s brilliant – more of us are getting better at reading. We’ve also doubled our volunteer readers to 22, which is amazing. To roll the same scheme out to Years 3 and 4 we need £3,000. Here’s one thing you can do right now: this week, each of you bring in one good-condition book you’ve finished with, or ask your family to sponsor you for a 20-minute read-aloud at home and bring the money in. Let’s…
Task by task
| Task | GPT-5.6 Terra | Grok 4.5 |
|---|---|---|
| Deck from a standing start | 10 | 9 |
| Speaker notes, not an essay | 10 | 10 |
| One slide, not a memo | 10 | 10 |
| The first 30 seconds | 10 | 9 |
| Slide on a diet | 10 | 10 |
| Right chart, right headline | 10 | 9 |
| Hostile Q&A prep | 7 | 8 |
| Cut it to two minutes | 9 | 10 |
| Same facts, different room | 10 | 5 |
| Forty slides into five | 9 | 9 |
| Father of the bride | 10 | 10 |
| Refuse the inflated slide | 10 | 10 |
Full receipts: GPT-5.6 Terra, Grok 4.5 · judges claude-sonnet-5, gemini-3.1-pro-preview, grok-4.5
Questions people ask
Which is better for presentations and slides: GPT-5.6 Terra or Grok 4.5?
GPT-5.6 Terra — it scored 96/100 against 91/100 on our 12-task presentations and slides suite, winning 4 tasks to 2 with 6 tied. Every answer was marked blind by three judges from three rival AI labs.
How was this tested?
Both models answered the identical published presentations and slides 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 presentations and slides head-to-heads: GPT-5.6 Luna vs GPT-5.6 Terra · GPT-5.6 Luna vs Grok 4.5 · GPT-5.5 vs GPT-5.6 Terra · GPT-5.5 vs Grok 4.5 · GPT-5.3-Codex vs GPT-5.6 Terra · GPT-5.3-Codex vs Grok 4.5
Full ranking: Best AI for presentations and slides · model pages: GPT-5.6 Terra, Grok 4.5