Which AI should you choose?

Why several models?

Each AI model has its strengths. Some excel at natural writing, others at logical reasoning, document analysis or execution speed. No model is universally superior for every task. This guide helps you make the best choice for your context.

Available text models

Claude Sonnet 4.5

Best for technical tasks and in-depth analysis.

Claude Sonnet 4.5 is the go-to model when your task requires precision and multi-step logic. It is the only one that supports the creation of artifacts, that is, reusable interactive documents such as calculators, dynamic tables or form templates, directly in the interface.

Use Claude Sonnet 4.5 to:

• Analyze a by-law or a complex legal text
• Create an interactive tool (calculator, tracking table)
• Automate an administrative process
• Write structured technical documentation

Departments concerned: Clerk's office, Urban planning, Information technology, General management, Human resources.

Gemini 3 Pro

Best for natural writing and strategic analysis.

Gemini 3 Pro produces natural, nuanced French, which makes it the ideal choice for all communications intended for citizens or the general public. It understands Quebec French and local administrative expressions particularly well. Its in-depth reasoning mode allows it to approach complex subjects with more perspective and nuance. It can also analyze images and scanned documents.

Use Gemini 3 Pro to:

• Write official letters, news releases or web content
• Produce strategic reports that require judgment
• Analyze large documents (master plans, impact studies)
• Interpret photos, plans or visual documents

Departments concerned: Communications, General management, Urban planning, Culture and recreation, Citizen services.

ChatGPT 5.2

Best for logical reasoning and structured planning.

ChatGPT 5.2 outperforms the other models on tasks requiring rigorous mathematical or logical reasoning. With a score of 52.9% on the ARC-AGI-2 benchmark, it is more than double its competitors at solving novel fundamental problems. It is the model of choice for complex budget analyses, financial projections and planning projects with multiple variables.

Use ChatGPT 5.2 to:

• Prepare multi-year budgets and financial projections
• Plan a project with dependencies and milestones
• Carry out complex cost-benefit analyses
• Solve logical problems involving several constraints

Departments concerned: Finance, Public works, General management, Municipal assessment.

Gemini 3 Flash

Best for volume and speed.

Gemini 3 Flash is the fast, lightweight version of Gemini 3 Pro. Its quality is sufficient for the large majority of simple daily tasks, with a significantly shorter response time. It is the ideal tool for high-volume repetitive tasks or quick exploration phases.

Use Gemini 3 Flash to:

• Handle a high volume of routine citizen requests
• Quickly produce drafts to be reviewed
• Categorize or sort documents in bulk
• Quickly explore several wordings or ideas

Departments concerned: Citizen services, Clerk's office, Communications, general administration.

Claude Haiku 4.5

Best for standardized, repetitive tasks.

Claude Haiku 4.5 is the lightweight version of Claude Sonnet 4.5. It offers faster execution for tasks that follow a predictable pattern. It is particularly well suited to standardized answers, extracting simple information from forms, and rewording existing documents.

Use Claude Haiku 4.5 to:

• Answer recurring questions following a defined template
• Extract specific data from standard forms or reports
• Reword an existing text into a simpler or adapted version
• Produce quick drafts meant to be reviewed

Departments concerned: Citizen services, Clerk's office, Communications, general administration.

Quick decision guide

If you want to write a quality official communication in French, choose Gemini 3 Pro.

If you want to analyze a by-law or create a reusable tool, choose Claude Sonnet 4.5.

If you need financial calculations or structured project planning, choose ChatGPT 5.2.

If you have a high volume of simple tasks to process quickly, choose Gemini 3 Flash.

If your task is repetitive and follows a standard pattern, choose Claude Haiku 4.5.

A word about choosing a model

All the models available in Munia perform well and can handle a wide variety of tasks. This guide offers directions based on benchmarks and user feedback in the municipal context, but the best model is often the one you are most comfortable with. Feel free to try several of them on the same task and compare the results.