GENAIWIKI

Anthropic

Claude Sonnet 4.5

Legacy

Catalog entry for this named release; see the provider’s official documentation for modalities, pricing, and context limits.

Best for:frontierCost tier:Sonnet
Compared to:Claude 3.5 HaikuReplaces:Claude 3 Haiku

LLM · Release · See provider

frontier

Updated 1 day ago · Verified Apr 2026 · Score 70

Decision summary

Why teams reach for it, where it fits, and what to watch for — before you dive into specs.

Why teams choose it

Not yet captured for this model in the catalog.

Best use cases

Not yet captured for this model in the catalog.

Tradeoffs

Not yet captured for this model in the catalog.

Technical details

Modalities, benchmarks, and release context.

Modalities

What goes in and what comes out.

Inputs
text
Outputs
text
Capabilities
general-purpose
Release: ·License: See provider

Benchmarks snapshot

Structured JSON for reproducible comparisons.

No benchmark data yet — see comparisons for relative performance.

Family lineup

Explore other versions in this family after you have the headline on this model.

Continue exploring

A short set of comparisons, nearby models, and links to go deeper — without repeating the same paths.

This page is based on publicly available documentation, benchmarks, and real-world usage patterns. Last reviewed for accuracy recently.