Anthropic launches Claude Opus 5.5 with 40% lower costs

Anthropic launched Claude Opus 5.5 on September 22, 2026, a model the company says performs comparably to Claude Fable 5.1 on most work while costing 40% less to run than Opus 5 and generating output more than 30% faster. Opus 5.5 is priced at $4 per million input tokens and $20 per million output tokens, down from $5 and $25 for Opus 5, with cache reads at $0.20 per million tokens versus $0.50. The model is available through the Claude Platform as claude-opus-5-5 and on Amazon Web Services, Google Cloud and Microsoft Azure, with Claude Sonnet 5.5 and Claude Haiku 5.5 to follow in the coming weeks.

Anthropic launches Claude Opus 5.5 with 40% lower costs According to Anthropic https://www.anthropic.com/claude-opus-5-5 , Opus 5.5 performs at a level comparable to Claude Fable 5.1 on most work while costing 40% less to run than Opus 5. The company also said the model generates output more than 30% faster than its predecessor. The new model https://qazinform.com/tag/artificial-intelligence is designed for complex tasks including coding, computer use, research and business workflows. Anthropic said early testers used Opus 5.5 for large-scale code migrations, software audits and other projects that previously required substantially more time and computing resources. Opus 5.5 costs $4 per million input tokens and $20 per million output tokens, compared with $5 and $25, respectively, for Opus 5. Cache reads cost $0.20 per million tokens, down from $0.50. Anthropic https://qazinform.com/tag/anthropic said Opus 5.5 also achieved its strongest results to date on the company’s automated behavioral audit, which evaluates models across thousands of simulated scenarios. The company has introduced additional safeguards for cybersecurity https://qazinform.com/tag/cybersecurity , biology and protection against model distillation. Claude Opus 5.5 is available today. https://t.co/lSCmTYw9eJ https://t.co/lSCmTYw9eJ September 22, 2026 https://x.com/AnthropicAI/status/2102435703535939725?ref src=twsrc%5Etfw The AI https://qazinform.com/tag/ai model is now available across Anthropic’s platforms, as well as Amazon https://qazinform.com/tag/amazon Web Services, Google https://qazinform.com/tag/google Cloud and Microsoft https://qazinform.com/tag/microsoft Azure. Developers can access it through the Claude Platform under the model name claude-opus-5-5. Anthropic said Claude Sonnet 5.5 and Claude Haiku 5.5 will follow in the coming weeks. Earlier, Qazinform News Agency https://qazinform.com/ reported that Anthropic had launched https://qazinform.com/news/anthropic-launches-upgraded-opus-5-ai-model-332b29 Opus 5, its latest AI model at the time, which the company said approached the capabilities of its more powerful Fable 5 at half the price.