DeepSeek V4 Pro vs GPT-5.6 Terra 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, DeepSeek V4 Pro took 1, 7 tied. Tested 16 Aug 2026.
Where they differed most
Plan a 10-minute presentation to the parish council proposing a zebra crossing outside St Mary's Primary. You have: 2 near-misses reported this term, a 140-signature petition, and an estimated £24,000 cost. Outline 8 slides — for each give a short title and the one point that slide must land. The ask (a feasibility study, not the money) must arrive by slide 3, not the end.
Here is an 8-slide outline for a 10-minute parish council presentation, with a single, clear point for each slide. The ask for a feasibility study (not the money) arrives by Slide 3. **Slide 1 – “Our Shared Priority”** *Point to land:* St Mary’s Primary is the heart of this parish, and its children deserve a safe route to school. **Slide 2 – “The Evidence Cannot Wait”** *Point to land:* This term alone we’ve had two documented near-misses outside the school gates, backed by a 140-signature petition demanding action. **Slide 3 – “What…
| Slide | Short title | One point it must land | |---|---|---| | 1 | **A Safer Route to St Mary’s** | Children and families face an avoidable road-safety risk immediately outside the primary school. | | 2 | **The Evidence Is Already Here** | Two reported near-misses this term and a 140-signature petition show that this is a real, evidenced community concern. | | 3 | **Our Ask: Fund a Feasibility Study** | We are asking the parish council to commission or support a feasibility study for a zebra crossing — **not to commit £24,000 today**. | | 4 |…
Task by task
| Task | DeepSeek V4 Pro | GPT-5.6 Terra |
|---|---|---|
| Deck from a standing start | 8 | 10 |
| Speaker notes, not an essay | 8 | 10 |
| One slide, not a memo | 10 | 10 |
| The first 30 seconds | 10 | 10 |
| Slide on a diet | 10 | 10 |
| Right chart, right headline | 10 | 10 |
| Hostile Q&A prep | 6 | 7 |
| Cut it to two minutes | 9 | 9 |
| Same facts, different room | 10 | 10 |
| Forty slides into five | 10 | 9 |
| Father of the bride | 8 | 10 |
| Refuse the inflated slide | 10 | 10 |
Full receipts: DeepSeek V4 Pro, GPT-5.6 Terra · judges claude-sonnet-5, gemini-3.1-pro-preview, gpt-5.6-terra
Questions people ask
Which is better for presentations and slides: DeepSeek V4 Pro or GPT-5.6 Terra?
GPT-5.6 Terra — it scored 96/100 against 91/100 on our 12-task presentations and slides suite, winning 4 tasks to 1 with 7 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.
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Full ranking: Best AI for presentations and slides · model pages: DeepSeek V4 Pro, GPT-5.6 Terra