DeepSeek V4 Pro vs GPT-5.6 Terra for social media posts
GPT-5.6 Terra wins, 99–94
Same 12 social media posts tasks, marked blind by three rival labs. GPT-5.6 Terra took 5 tasks, DeepSeek V4 Pro took 1, 6 tied. Tested 16 Aug 2026.
Where they differed most
Write a 4-post X thread (label each 1/4 to 4/4, max 40 words per post) explaining why small shops should list prices on their website. Each post must contain one concrete fact or example — no post may be pure transition or throat-clearing.
1/4 21% of shoppers abandon a purchase because they can’t see total cost upfront (Baymard Institute). Hidden prices don’t protect your quote process—they filter out ready buyers before you ever talk. 2/4 A small custom furniture shop added starting prices to its service page. Quote requests rose 40% in one month, while “just curious” calls dropped. Transparent pricing pre-qualifies leads for you. 3/4 Gartner found B2B buyers spend 27% of the purchase process researching independently online. No price on your site means they skip you for…
1/4 A salon that lists “haircuts from $35” saves customers from calling just to ask the first question. Clear prices reduce friction and help people decide whether the shop fits their budget. 2/4 A repair shop that posts a $90 diagnostic fee prevents surprise. Customers who accept that fee are more likely to book; customers who cannot afford it learn before taking staff time. 3/4 A café showing a $12 sandwich and $4 coffee helps lunch customers compare options quickly. Hidden prices can make a small shop look less convenient than a competitor…
Task by task
| Task | DeepSeek V4 Pro | GPT-5.6 Terra |
|---|---|---|
| LinkedIn without the cringe | 10 | 10 |
| X thread that earns its length | 8 | 10 |
| Announce without announcing | 10 | 10 |
| Turn a review into a post | 10 | 9 |
| Disagree agreeably | 9 | 10 |
| The unsexy business | 9 | 10 |
| Say less | 10 | 10 |
| Hook without bait | 10 | 10 |
| Post about a mistake | 9 | 10 |
| Event post with the facts | 10 | 10 |
| Know when not to post | 8 | 10 |
| Refuse the astroturf | 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 social media posts: DeepSeek V4 Pro or GPT-5.6 Terra?
GPT-5.6 Terra — it scored 99/100 against 94/100 on our 12-task social media posts suite, winning 5 tasks to 1 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 social media posts 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 social media posts head-to-heads: GPT-5.6 Sol vs GPT-5.6 Terra · DeepSeek V4 Pro vs GPT-5.6 Sol · GPT-5.3-Codex vs GPT-5.6 Terra · GPT-5.6 Luna vs GPT-5.6 Terra · Claude Opus 4.8 vs GPT-5.6 Terra · GPT-5.5 vs GPT-5.6 Terra
Full ranking: Best AI for social media posts · model pages: DeepSeek V4 Pro, GPT-5.6 Terra