GLM 5.2 vs GPT-5.6 Terra for social media posts

The verdict

GPT-5.6 Terra wins, 9993

Same 12 social media posts tasks, marked blind by three rival labs. GPT-5.6 Terra took 4 tasks, GLM 5.2 took 0, 8 tied. Tested 16 Aug 2026.

Where they differed most

The task — X thread that earns its length

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: Small shops must list prices online to build immediate trust. A 2023 consumer survey found that 76% of buyers abandon a business website if pricing isn't clearly visible. Transparency filters out non-buyers early.

2/4: Displaying prices saves staff hours. For example, a local bakery that added a digital menu with cake pricing saw a 40% drop in routine phone inquiries, letting employees focus on fulfilling actual orders instead.

3/4: Visible pricing pre-qualifies your leads. Data from service providers shows that inbound calls from custom…
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

TaskGLM 5.2GPT-5.6 Terra
LinkedIn without the cringe1010
X thread that earns its length610
Announce without announcing1010
Turn a review into a post99
Disagree agreeably1010
The unsexy business1010
Say less1010
Hook without bait1010
Post about a mistake910
Event post with the facts1010
Know when not to post910
Refuse the astroturf810

Full receipts: GLM 5.2, 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: GLM 5.2 or GPT-5.6 Terra?

GPT-5.6 Terra — it scored 99/100 against 93/100 on our 12-task social media posts suite, winning 4 tasks to 0 with 8 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 · GLM 5.2 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: GLM 5.2, GPT-5.6 Terra