Claude Opus 5.5 is Anthropic's flagship model for demanding reasoning, coding, and long-horizon agentic work, succeeding Claude Opus 5. It is particularly strong at multi-step changes in large codebases, code...
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Measured against all 427 chat models CoreAI serves, Anthropic: Claude Opus 5.5 (batch) sits at #108 for context capacity — 1M tokens, roughly 750,000 words or 1,500 pages of text in a single conversation. On price, it is the #173 cheapest of 200 standard-tier models by input cost. Released 2026-09-22, it is one of the 1 newest additions to the catalog. It supports step-by-step reasoning (thinking mode) and accepts image input.
Every model in this table is available on CoreAI — open the web app and run the same prompt through Anthropic: Claude Opus 5.5 (batch) and Anthropic: Claude Sonnet 5 side by side to judge with your own eyes.
A typical question (about 1,000 tokens in, 500 out) runs $0.00700 on Anthropic: Claude Opus 5.5 (batch)'s raw per-token rates; a heavy session with a 50K-token document costs about $0.150. On CoreAI you don't juggle these numbers — one subscription covers Anthropic: Claude Opus 5.5 (batch) and 300+ other models under a plan usage limit, with no API keys. See plans.
Anthropic: Claude Opus 5.5 (batch) handles 1M tokens of context — roughly 750,000 words, or about 1,500 pages of text in one conversation.
Anthropic: Claude Opus 5.5 (batch)'s underlying rates are $2 per 1M input tokens and $10 per 1M output tokens. On CoreAI it is included in one subscription alongside 300+ models, so there is no per-token billing to manage.
Yes — Anthropic: Claude Opus 5.5 (batch) accepts image input, so you can attach screenshots, photos or diagrams and ask questions about them.
Yes. Anthropic: Claude Opus 5.5 (batch) can work through problems step by step before answering; on CoreAI you can toggle thinking mode per message.
Open the CoreAI web app or the iOS/Android app, pick Anthropic: Claude Opus 5.5 (batch) in the model selector, and chat — no API key, no per-token billing. One subscription covers Anthropic: Claude Opus 5.5 (batch) and 300+ other models.
The closest alternatives on CoreAI are Anthropic: Claude Sonnet 5, Sakana: Fugu Max, inclusionAI: Ling 3.0 Flash — similar tier and capability. The fastest way to choose is running one prompt through them side by side in CoreAI's Compare view.
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