Anthropic engineers made claude.ai and the Claude desktop app roughly three times faster during a two-week sprint in August, with Claude finding the bottlenecks and writing the fixes. The team merged more than 3,000 changes and says none of them caused a customer-facing incident or rollback. The engineers ran the whole thing out of one Slack channel, using an internal research model roughly comparable to Opus 5.5 through the Claude Tag beta.
Claude.ai is about 3x faster after 3,000+ changes
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