Anthropic releases Claude Opus 5.5: first model in the Claude 5.5 family, 20% cheaper than Opus 5
On September 22, 2026, Anthropic released Claude Opus 5.5, which the company describes as the first model in its new Claude 5.5 family and as its new leading f…
Published on MyPrivateClaw
Sep 25, 2026, 2:18 AM UTC
Coverage date
Sep 22, 2026
Last updated
Sep 25, 2026, 2:18 AM UTC
News summary
On September 22, 2026, Anthropic released Claude Opus 5.5, described by the company as the first model in its new Claude 5.5 family and as its new leading flagship. Anthropic prices it 20% below Opus 5. These release details are self reported by Anthropic. Per Anthropic's own stated tests and figures, Claude Opus 5.5 is priced at $4 input and $20 output per million tokens, which is 20% less than Opus 5, with cache reads at $0.20 per million tokens, 60% less than Opus 5. Anthropic states that the model generates output more than 30% faster than Opus 5 while requiring less compute to serve. Anthropic says Claude Opus 5.5 is available now on all platforms including Amazon Web Services, Google Cloud, and Microsoft Azure, and is reachable on the Claude Platform via the claude opus 5 5 model id, with zero data retention and EU AI Act watermarking. This platform availability is stated per Anth…