Tested this picture:

And result was stunning:

PROMPT: Describe the image
Assistant prefix: description

Answer from Idefics-3:
The image depicts a bustling urban street scene in what appears to be an older part of town, likely from mid-20th century America. This is inferred by the architectural style and signage present on the buildings.

Description:

Buildings:
The buildings are multi-story structures with brick facades that range in color from light brown to dark red. They have large windows and ornate details such as cornices and decorative moldings. Some signs indicate these might be commercial establishments or hotels. Notable signs include "CHANCELLOR HOTEL" and "FRANKLIN OPTICAL CO."
Street Scene:
The street itself is filled with various vehicles including cars, buses, trolleys, and trucks moving along both sides of the road. There's significant pedestrian traffic; people can be seen walking across the intersection and standing at curbsides. Traffic lights govern the flow of vehicles, ensuring order amidst the chaos.
Signage:
Numerous signs line the sidewalks:

• Starlite Roof: A sign indicating this establishment.
• 29TH ST PETTITI: Likely referring to a business name or address.
• GRACE BALL SECRETARIAL COLLEGE: Another educational institution’s advertisement.
• Various other smaller signs for businesses like restaurants, shops, and services.
  Vehicles:
  Cars dominate the roadway, ranging from sedans to larger family vehicles. Buses and trolley-like public transport vehicles also appear prominently, suggesting it could be a busy commuter route. Pedestrians cross over zebra crossings while some stand near storefronts.
  Lighting:
  There are several lampposts lining the streets, providing illumination during nighttime hours (implied due to their presence).
  Miscellaneous Details:
  A few trees provide greenery, adding a touch of nature within the otherwise concrete environment. Additionally, there seems to be a slight incline up which may suggest this area has hilly terrain typical of many historic cityscapes.

Analysis & Integration of Relevant Knowledge:

This image captures a snapshot of mid-century American urban life characterized by its dense population density, mixed-use development, and reliance on personal automobiles and public transportation. Such scenes were common before widespread suburbanization and modern-day changes in urban planning. The mix of pedestrians, vehicles, and varied architecture reflects economic diversity and community activity.
In summary, the image portrays a lively downtown setting rich in historical context, showcasing elements indicative of early 20th-century urban design and infrastructure. It highlights the blend of commerce, education, and daily life activities characteristic of vibrant metropolitan areas from decades past.