Between 2026-09-22 and 2026-09-24, social media posts announce Anthropic's release of Claude Opus 5.5, highlighting its performance in coding and knowledge work, 40% lower cost than Opus 5, and widespread user enthusiasm across tech communities.
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Claude Opus 5.5 view on hacker news Posted by km144 with a score of 411
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New Opus seems amazing. Fable-level, while being much cheaper than before, and (apparently) also much better to talk to compared to Opus 5 (which was horribly annoying). Claude Opus 5.5 leads in agentic coding and knowledge work, and costs 40% less to run than Opus 5 on typical workloads.
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Anthropic Releases Claude Opus 5.5 With Lower Pricing and New Safeguards ->Unite.AI | More on "Claude Opus 55 AI model release" at BigEarthData.ai | #ArtificialIntelligence #Anthropic Anthropic released Claude Opus 5.5 on September 22, 2026, the first model in its new Claude 5.5 family. The model is priced at $4 per million input tokens and $20 per million output tokens, 20% below Claude Opus 5, a
What’s new in Claude Opus 5.5? Anthropic says its latest AI model costs around 40% less than Opus 5, while output can be over 30% faster. Fast mode goes up to 2.5x speed for developers. itmatterss.in/latest-post/... #claude #anthropic #ai Claude Opus 5.5 brings 40% lower costs, faster performance and up to 2.5x speed in Fast mode for coding and complex AI tasks.
Opus 5.5 just dropped and people are already going wild with pure code generated videos. One user made a 78 second high noise matte animation in 45 minutes. #Opus #Claude #ClaudeOpus aidisruption.ai/p/claude-opu... Anthropic releases Claude Opus 5.5 with faster speeds, lower costs, and near Fable 5.1 performance for coding agents and knowledge work.
Claude Opus 5.5 wants to finish your coding tasks, not just start them share.google/t3QPu2Xt60zr... Anthropic's Claude Opus 5.5 targets full-lifecycle coding tasks, matching Fable 5.1 on most work at 40% less cost — but "done" still isn't "correct."