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Claude Sonnet 5.5 Arrives as Higgsfield Shows Faster AI-Assisted UI Animation in After Effects

September 28, 2026 at 15:34 EDT

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Anthropic released Claude Sonnet 5.5 on September 28, positioning it as a faster and lower-cost Sonnet model for everyday agentic work, while Higgsfield demonstrated the model being used with After Effects to produce a UI animation sequence in under 30 minutes. The pairing highlights a broader shift in creative production: frontier chat models are increasingly acting as operators for specialist design and video tools, rather than serving only as text or code assistants.

September 28, 2026 · Anthropic and Higgsfield

Sonnet 5.5 enters the motion stack

Anthropic released Claude Sonnet 5.5 as Higgsfield showed a Claude-directed After Effects UI animation workflow completed in under 30 minutes.

The clearest benchmark jump

10.3%Sonnet 5

70.6%Sonnet 5.5

Terminal-Bench 4.0 accuracy, shown proportionally.

30%+Faster output than Sonnet 5

$2Per 1M input tokens

30+Image and video models via Higgsfield

<30Minutes for the reported UI animation sequence

Workflow shift

Prompt

Describe the interface animation and assets.

→

Generate

Claude routes work through Higgsfield tools.

→

Finish

After Effects remains the editable review environment.

Why teams like it

Faster first passes, editable layers, and a tighter loop between brief, render, and revision.

What still limits it

Paid connector access, desktop software, human review, and model safeguards remain part of the workflow.

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