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Claude Sonnet 5.5: faster and cheaper than Sonnet 5
Anthropic releases the second model in the Claude 5.5 family, running over 30% faster and costing up to 30% less for most work.
Claude
@claudeaiArchived 22 days agoOriginally posted 2026.09.29
Claude @claudeaiOriginally posted 2026.09.29
Introducing Claude Sonnet 5.5, the second model in the Claude 5.5 family. It’s a clear upgrade over Sonnet 5, runs more than 30% faster, and costs up to 30% less for most work.
x.com/claudeai/status/2104633115620823187Archived 2026.10.05 23:26