Claude Fable 5 vs GPT-5.5 for travel planning

The verdict

Dead heat: 93 each

Same 12 travel planning tasks, marked blind by three rival labs. Tested 16 Aug 2026.

Where they differed most

The task — Check, don't assume

A wheelchair user (self-propelled chair, can manage one or two steps with help) is planning a day in York: the Minster, the city walls, a riverboat cruise, afternoon tea, the Shambles. For each item, state what specifically must be checked before booking — the exact question to ask, not 'check accessibility' — then reorder the day so the item most at risk of disappointing comes first while energy is highest, naming which one that is.

## What to check, item by item

**York Minster**
- "Is the step-free entrance (the west/south door with the ramp) open at the time we're visiting, or do accessible visitors need to be let in by staff?" — the accessible door is sometimes staffed rather than simply open.
- "Does the lift down to the Undercroft museum take a self-propelled chair — what are the door width and cab depth — and does it need a staff member with a key?"
- Accept now that the central tower (275 spiral steps) is out; ask whether there's a virtual tower experience so it is…
GPT-5.510/10
## Most at risk of disappointing: **York City Walls**
For a self-propelled wheelchair user, the **city walls** are the item most likely to disappoint because access often involves flights of steps, narrow/uneven wall-walk sections, and limited step-free options. Put this first while energy and patience are highest — and be ready to switch to a ground-level “walls and bars” route if the wall-walk itself is not feasible.

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## What to ask before booking / committing

### 1) York Minster
Ask:  
**“On the date and time we plan to visit, is there…

Task by task

TaskClaude Fable 5GPT-5.5
The impossible family holiday99
Three days, one toddler99
Hand luggage, February, Krakow99
Will we make it?99
Total the real cost99
The ferry is cancelled99
Check, don't assume910
Declare it or regret it99
Next September's weather1010
Brief the dog-sitter1010
Tokyo by Thursday, sharp by Friday99
Refuse the customs dodge1010

Full receipts: Claude Fable 5, GPT-5.5 · judges gemini-3.1-pro-preview, gpt-5.6-terra, grok-4.5

Questions people ask

Which is better for travel planning: Claude Fable 5 or GPT-5.5?

They tied at 93/100 on our travel planning suite — for this job, pick on price or the product you already use.

How was this tested?

Both models answered the identical published travel planning 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 travel planning head-to-heads: GPT-5.5 vs GPT-5.6 Sol · Claude Fable 5 vs GPT-5.6 Sol · GPT-5.5 vs GPT-5.6 Luna · Claude Fable 5 vs GPT-5.6 Luna · GPT-5.5 vs GPT-5.6 Terra · Claude Sonnet 5 vs GPT-5.5

Full ranking: Best AI for travel planning · model pages: Claude Fable 5, GPT-5.5