
Claude Opus 5.5 is Anthropic's newest Opus model (released September 22, 2026) and the one Anthropic recommends as the default for most work. According to Anthropic, it comes close to Claude Fable 5.1 on most tasks while producing output faster and using fewer tokens per task than Claude Opus 5 — strong at agentic coding, complex reasoning and professional knowledge work.
Pricing theo tokenInput 400 credits / 1M (≈ $2.00)Output 2000 credits / 1M (≈ $10.00)
Used to describe the generated output.
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Cho model tra cuu web (WebSearch + WebFetch) khi can thong tin moi. Chi ho tro model Claude.
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README
Claude Opus 5.5 is Anthropic's newest Opus model (released September 22, 2026) and the one Anthropic recommends as the default for most work. According to Anthropic, it comes close to Claude Fable 5.1 on most tasks while producing output faster and using fewer tokens per task than Claude Opus 5 — strong at agentic coding, complex reasoning and professional knowledge work.
Billed by tokens: 400 credits per 1M input tokens (≈ $2.00) and 2000 credits per 1M output tokens (≈ $10.00), charged on each call's actual usage. Credits never expire; top up on the Billing page.
Sign up for a CinAPI account, create an API key under API Keys, then call the endpoint with a Bearer key. API-key calls are paid from purchased or bonus credits; your plan's monthly allowance can only be used on the web.