Claude Opus 5.5 is here. More capable, faster, and substantially cheaper. @AnthropicAI…
This is a AI post classified by Jev as Frontier models (a model release), kept by the AI Radar because it carries real work, not commentary.
Claude Opus 5.5 is here. More capable, faster, and substantially cheaper. @AnthropicAI keeps pushing the economics of useful AI. According to Anthropic: • 40% lower costs on typical workloads than Opus 5. • Over 30% faster output. • 66.4% on Terminal-Bench 4.0, versus Opus 5’s 52.3% and GPT-6 Astra’s 57.9%. • Clearer writing and stronger performance on long, complex coding tasks. API pricing drops to $4/$20 per million input/output tokens. Pro, Max, and Team users also get higher five-hour limits, plus a rate-limit reset they can save for later. More work completed, less time waiting, lower
Posted by Mark Kretschmann (57.2k followers) 1 h ago · 139 likes · 5.3k views · view the original post on X. Kept by the AI Radar as Frontier models.
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