Claude Fable 5 vs DeepSeek V4 Pro for emotional support

The verdict

Dead heat: 97 each

Same 12 emotional support tasks, marked blind by three rival labs. Tested 16 Aug 2026.

Where they differed most

The task — Driving test at 9am

Your nephew texts at 10pm: 'Test tomorrow 9am. Third attempt. If I fail again I'm done, and everyone at work knows this time.' Write the reply: steady him tonight without hollow certainty — you do not know he will pass, so do not promise it — give him one practical thing for the morning, and take the weight out of the third-attempt story.

Hey. Glad you texted me instead of sitting alone with this.

I'm not going to tell you you'll pass — I don't know that, and you'd see through it anyway. What I'll tell you is this: the test tomorrow has no idea it's your third attempt. It's the same exam it would be on a first try. The "third time" is a story with weight only because you're carrying it into the room. Leave it at the door. Tomorrow you're just a person answering questions for an hour.

And the people at work? They're mostly thinking about themselves, same as everyone. If it goes…
I’m glad you reached out. That’s a heavy weight to carry into the night, and I hear you. Right now, the kindest thing you can do is not try to solve tomorrow tonight—just let your brain rest. You’ve put in the work; you’re not walking in cold.

One practical thing for the morning: set out everything you need tonight (ID, water, snack, clothes) so there’s zero scramble. Then, before you walk into the room, stand still for ten seconds and take three slow breaths—in through your nose, out through your mouth. It sounds small, but it resets your ner…

Task by task

TaskClaude Fable 5DeepSeek V4 Pro
The dog died1010
Redundant at 551010
She said no advice910
After the miscarriage1010
Driving test at 9am108
First Father's Day after1010
The 3am calls1010
Days without speaking89
Stop apologising1010
Not a diagnosis99
Her promotion, your rejection1010
The 1am message1010

Full receipts: Claude Fable 5, DeepSeek V4 Pro · judges gemini-3.1-pro-preview, gpt-5.6-terra, grok-4.5

Questions people ask

Which is better for emotional support: Claude Fable 5 or DeepSeek V4 Pro?

They tied at 97/100 on our emotional support suite — for this job, pick on price or the product you already use.

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 Fable 5 vs Claude Sonnet 5 · DeepSeek V4 Pro vs GPT-5.5 · Claude Fable 5 vs GPT-5.5 · Claude Opus 4.8 vs DeepSeek V4 Pro · DeepSeek V4 Pro vs GPT-5.6 Sol

Full ranking: Best AI for emotional support · model pages: Claude Fable 5, DeepSeek V4 Pro