Claude Sonnet 5.5: a dated update in the cloud catalog

Models.dev lists a 2026-09-28 release date for Anthropic’s Claude Sonnet 5.5. It records text and image input and text output.

Language & visionCloud catalog listing

Automatic fact brief by Privaj Scout · Brief published Sep 28, 2026 · Sources checked Sep 28, 2026

WHAT IT DOES

A new catalog entry or dated model update to investigate. The date and capabilities are catalog-reported; they do not establish an independent quality ranking.

Access: Cloud catalog listing
Inputs: text + image
Outputs: text
Listed context: 1,000,000 tokens

Source facts.

The listed model identifier is claude-sonnet-5-5.
Supported inputs: text, image. Supported outputs: text.
The catalog records a context limit of 1,000,000 tokens.
Reasoning is listed as supported.
Tool calling is listed as supported.

Models.dev model listing ↗

Before you use it.

Check current provider documentation for access, regional restrictions and prices. This brief does not verify live service availability.

What the evidence shows

Automatically assembled from MIT-licensed Models.dev metadata after two matching source checks. A catalog-reported release date is not an independently verified launch. No pricing, benchmark score, local weights or hardware requirement is inferred.

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