Methodology: how we build the rankings

How positions are decided

• Each use case has its own criteria, published on the category page and listed below.
• Positions are an editorial curation by OQuark based on those criteria and on public information about each tool. We don't run our own performance tests yet.
• Every tool page explains, in Portuguese and English, why the tool holds its position.
• We list 4 to 10 options per use case: the goal is a short answer, not a catalog.
• The order comes only from the position field in the editorial data. The editorial data has no payment, sponsorship or affiliate field.

Criteria by use case

These are the criteria used in each category. Click a name to see its ranking.

Chat assistants

Answer quality across varied tasks, bundled features (web search, files, voice, images), free tier and ease of use in Portuguese and English.

Coding

Ability to finish real tasks in large codebases, autonomy as an agent, workflow integration (terminal, IDE, GitHub) and cost for daily use.

Vibe coding (no-code apps)

Quality of the first result, how easy it is to iterate by chat, built-in backend and database, publishing and code export.

Agents and automation

Number of integrations, flexibility for complex AI workflows, self-hosting option, learning curve and cost per run.

Research and study

Citation reliability, source coverage (web or scientific papers), ability to work with your own documents and free tier.

Image generation

Aesthetic quality, prompt adherence, legible text in images, editing tools and safety for commercial use.

Video generation

Motion realism and consistency, synced audio, camera and character control, clip length and availability outside the US.

Voice and audio

Voice naturalness (including Portuguese), language coverage, cloning and dubbing, developer API and commercial license.

Music

Musical and vocal quality, control over style and structure, commercial usage rights and editing options.

Writing and translation

Grammar and translation accuracy, Portuguese support, integration with where you already write (browser, Office, email) and team features.

Meetings and transcription

Transcription accuracy (including Portuguese), quality of summaries and action items, CRM and work tool integrations, and free plan limits.

Presentations and design

Visual quality, how easy it is to edit after generation, templates and brand kits, and export options (PPTX, PDF, web).

Game creation

Quality of generated assets or games, style consistency, export formats for game engines and commercial license.

Local and open models

Ease of setup, model catalog, performance on consumer hardware, OpenAI-compatible API and license.

Productivity

Time saved day to day, integration with what your team already uses, privacy of company data and cost per seat.

AI for lawyers

Usefulness for real legal work (case-law and statute research, drafting and reviewing filings and contracts, document analysis), coverage of Brazilian law and Portuguese support, pricing transparency and a free plan or trial.

Customer service

Quality and autonomy of the AI agent at resolving support requests, supported channels (WhatsApp, website chat, email), integration with the knowledge base and helpdesk, Portuguese support and pricing transparency.

Marketing and SEO

Real gains in SEO and content marketing (keyword research, page optimization, ad and campaign creation), proprietary search data, support for Portuguese and the Brazilian market, a free plan or trial and pricing transparency.

Spreadsheets and data analysis

Accuracy and usefulness of the analysis (formulas, charts, cleanup and plain-language questions about the data), supported data sources (Excel, CSV, Google Sheets, databases), data privacy, free tier and pricing transparency.

Short-form video and clips

Quality of automatic clips cut from long videos, automatic captions (including in Portuguese), vertical formats and publishing to TikTok, Reels and Shorts, free tier and pricing transparency.

Sources

• Each tool's official website: description, features and whether there's a free tier.
• The official pricing page: we only show a starting price when we're sure of it, and even then we ask you to check the official site.
• Launches: the official announcement with a date. When the official page has no date or blocks access, we use news reports and the "Source" link points to them.
• No paid source goes into a position: sponsored reviews and ads don't count.

Review frequency

The date of the last editorial review is shown at the top of this page, on each category and in the footer. We review positions when a relevant launch comes out, when a price or feature changes or when someone reports a mistake, and we update the date every time the ranking is reviewed.

On top of that, there's a mechanical weekly check run by a script with no AI: it only makes HTTP requests and compares the results with the previous week. Its output is a report for human review.

• Checks whether the link of every tool and every launch still works, and whether it moved to another address or domain.
• Detects changes on each tool's pricing page by comparing the text and the prices with the previous week.
• Never changes a position, the order or the criteria of the ranking. At most, it marks as broken a link that failed two checks in a row.
• The report is read by a person, who decides whether any tool page or position needs an editorial review.

Editorial rules (R1 to R8)

The site will be funded by ads, affiliate links and templates. No paid format is on sale today. These rules make sure none of that touches the ranking.

1. R1The editorial ranking is not for sale

   No payment buys, raises, keeps or protects a position. Positions come only from the published criteria, and payment data is kept apart from editorial data.

2. R2When there is paid placement, it is labeled "Sponsored"

   When they exist, paid cards, the sponsors bar and paid newsletter blocks will show "Sponsored" at first sight, with no scrolling or clicking needed.

3. R3Featured spots stay outside the numbered list

   A sponsored card appears above or beside the ranking, with a different background and no position number. It's never inserted between numbered positions.

4. R4Paying doesn't protect from demotion

   If a sponsor gets worse on price, quality or safety, its editorial position drops as usual.

5. R5Affiliate links don't change positions

   The ranking is set before we check whether an affiliate program exists. The #1 tool without an affiliate program stays #1, and every affiliate link is flagged next to the button.

6. R6Free submission always exists

   Any tool can ask to join the catalog for free through the contact e-mail. When paid formats exist, they will only buy faster review and labeled visibility.

7. R7Public transparency

   These rules are published on the site; when there are paid formats and active affiliate programs, they will be published too.

8. R8Refusal

   We don't accept sponsorship from tools with signs of fraud, abusive data collection or that generate illegal content. The final decision is always made by a person.

See also how we make money and the advertising formats.