DeepSeek V4 Pro vs GPT-5.6 Terra for emotional support

The verdict

DeepSeek V4 Pro wins, 9793

Same 12 emotional support tasks, marked blind by three rival labs. DeepSeek V4 Pro took 4 tasks, GPT-5.6 Terra took 1, 7 tied. Tested 16 Aug 2026.

Where they differed most

The task — Stop apologising

Your friend ends every message with 'sorry for being such a burden' — including one just now, after asking you to feed her cat while she is away at a funeral. Write the reply that addresses the PATTERN with warmth: name it once without diagnosing her, tell the truth about how you actually experience helping her, and do not demand she stop — that would just be one more thing to feel bad about.

Hey—I’ve noticed you’ve been ending every message lately, including just now, with “sorry for being such a burden.” I just want you to know the truth from my side: feeding your cat while you’re at a funeral doesn’t feel like a burden to me. It feels like the smallest, most obvious way to show up for you. Honestly, I’m glad you asked instead of trying to handle everything alone.

I’m not going to tell you to stop saying it—I just want my version of the truth in the room too: you’re not heavy to me.
Of course I’ll feed her cat — I’m glad you asked.

And I want to say one thing gently: I’ve noticed you often end messages by apologizing for being a burden. You’re not a burden to me. Helping you with something like this feels like being your friend, not like an obligation you need to apologize for. You’ve got enough going on right now; you don’t need to carry that extra weight with me.

Task by task

TaskDeepSeek V4 ProGPT-5.6 Terra
The dog died1010
Redundant at 55109
She said no advice1010
After the miscarriage109
Driving test at 9am88
First Father's Day after1010
The 3am calls1010
Days without speaking910
Stop apologising108
Not a diagnosis99
Her promotion, your rejection1010
The 1am message109

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 emotional support: DeepSeek V4 Pro or GPT-5.6 Terra?

DeepSeek V4 Pro — it scored 97/100 against 93/100 on our 12-task emotional support 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 emotional support 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 emotional support head-to-heads: Claude Sonnet 5 vs DeepSeek V4 Pro · Claude Sonnet 5 vs GPT-5.6 Terra · DeepSeek V4 Pro vs GPT-5.5 · GPT-5.5 vs GPT-5.6 Terra · Claude Fable 5 vs DeepSeek V4 Pro · Claude Opus 4.8 vs DeepSeek V4 Pro

Full ranking: Best AI for emotional support · model pages: DeepSeek V4 Pro, GPT-5.6 Terra