closed modelAnthropic · Opus 5.5, Fable 5.1, Sonnet 5, Haiku 4.5

Claude

the engineer

A strong first pick when the work lives in an existing codebase or a pile of documents. Claude Code works inside your project, and citations can tie each finding to the exact passage it came from.

the short version
best fordevelopers working in real repos, and professionals who draft, compare and review long documents.
skip it ifyou need image generation, or you’re strictly on $0 and want the paid models.

who it’s best for

1

The developer in an existing codebase

Claude Code reads the repo, edits files, runs commands and reacts to failing tests. It does more than paste snippets.
2

The professional buried in documents

Compare agreements, spot conflicting clauses, and get each finding tied to its source passage.
3

The long-task engineer

Migrations, audits and multi-step engineering work that needs to stay on track for a while.

what it’s good at

Repository-based coding with Claude Code
Citations tied to passages in your PDFs and docs
Works in the terminal, IDE, desktop and browser
Opus 5.5 aimed at everyday agentic coding

watch out for

No image generation.
Great document comparison isn’t legal advice. You still need real sources and review.
In third-party tools, use an API key, not your Pro/Max login.

how to get it

freeFree plan (Opus is on paid plans)
paidPro $20/mo · Max from $100/mo
API per 1M tokensSonnet 5 $2 / $10 · Opus 5.5 $4 / $20
whereClaude app, Claude Code, Claude Platform

the quiz picks it first for

B-A · coding → work inside a project (over $10)C-A · work → long documentsB-B · coding → repeated app tasks (over $10)B-E · coding → motion graphics and design (over $10)B-C · coding → UIs from screenshots (over $10)

and as the backup for

A-D · studying → readings and essaysB-A · coding → work inside a project ($10 or less)D-C · everyday → longer writingA-C · studying → math and logic (over $10)D-D · everyday → straightforward questions (over $10)B-D · coding → cheap experimentsB-E · coding → motion graphics and design ($10 or less)B-C · coding → UIs from screenshots ($10 or less)C-D · work → repeatable workflows
is it for me? take the quiz →compare all fivedetails from a Sept 28, 2026 research snapshot