Migration assistant

Replacing claude-3-5-sonnet?

Ranked replacement candidates, each shown with exactly what changes if you switch. Same-provider matches surface first because switching cost is lower; capability regressions are flagged in red.

AN
Migrating from

claude-3-5-sonnet

Anthropic · Active
Input: —/M Output: —/M Context:
View detail →
#1 RECOMMENDED

Claude Fable 5

Anthropic
same provider
View full detail →
What changes if you switch
Field claude-3-5-sonnet Claude Fable 5 Impact
Input price $10/M Source price not verified
Output price $50/M Source price not verified
Lifecycle Active Active Same status
Other candidates
#2

Claude Haiku 3.5

Anthropic
same provider
Details →
#3

Claude Haiku 4.5

Anthropic
same provider
Details →
#4

Claude Opus 4

Anthropic
same provider
Details →
#5

Claude Opus 4.1

Anthropic
same provider
Details →
Methodology

How candidates are ranked

Candidates are ranked by how much of the source model's profile each one preserves — weighing switching cost (same provider or model family surface first), capability parity (what you keep versus what you'd lose), context window, and pricing direction. A candidate that is itself deprecated is pushed down the list; one that's already retired is never recommended.

Ranking is purely algorithmic — no editorial weighting, no paid placement. Every value is pulled from each provider's own documentation; click any model name to see the source-linked detail.