Product change·Sep 28 → Sep 29, 2026·Day 272, 2026·AI & Machine Learning
Perplexity AI upgrades Pro lineup from Claude Sonnet 5 to Claude Sonnet 5.5
Pro model lineup: Claude Sonnet 5 upgraded to Claude Sonnet 5.5 (Anthropic's fast model)
What changed
Feature change
Pro model lineup: Claude Sonnet 5 upgraded to Claude Sonnet 5.5 (Anthropic's fast model)
Before and after
Sep 28, 2026 vs Sep 29, 2026Pulse.
100%
What changed
Pro model lineup: Claude Sonnet 5 upgraded to Claude Sonnet 5.5 (Anthropic's fast model)
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