{"omc_version":"0.1","id":"anthropic-claude-opus-5-5","name":"Claude Opus 5.5","provider":"Anthropic","released":"2026-09-22","licence":{"tag":null,"state":"pending_curation","url":null},"url":null,"description":"Claude Opus 5.5 is a hosted-only model that leads the Arena boards for general chat and creative writing, and ranks near the top on mathematics. Those Arena placings are human preference votes rather than correctness, and constrained instruction following is its weakest measured category.","modalities":["text","image","file"],"context_window":1000000,"capabilities":{"intelligence":5,"writing":5,"coding":5},"x_llmap_capability_sources":{"coding":{"suite":"lmarena-coding","suite_name":"Arena Coding","rank":3,"of":168,"score":1547.1281,"higher_is_better":true,"variant":"High"},"writing":{"suite":"lmarena-creative-writing","suite_name":"Arena Creative Writing","rank":1,"of":168,"score":1521.1589,"higher_is_better":true,"variant":"High"},"intelligence":{"suite":"lmarena-text","suite_name":"Arena Text (overall)","rank":1,"of":168,"score":1508.5538,"higher_is_better":true,"variant":"High"}},"pricing":{"input_per_1m_tokens":4,"output_per_1m_tokens":20,"currency":"USD","source":"cheapest of 13 tracked offers (Anthropic)"},"relationships":[{"type":"successor-of","id":"anthropic-claude-opus-5"},{"type":"same-family","id":"anthropic-claude-opus-5"},{"type":"same-family","id":"anthropic-claude-opus-4-8"},{"type":"same-family","id":"anthropic-claude-opus-4-7"},{"type":"same-family","id":"anthropic-claude-opus-4-6"},{"type":"competes-with","id":"openai-gpt-5-5"}],"card_meta":{"created":"2026-09-25T14:14:06.661Z","created_by":"LLMap pipeline","last_updated":"2026-10-01T20:17:09.695Z","x_llmap_prices_checked":"Prices checked 3 hours ago","x_llmap_prices_oldest":"2026-10-01T20:14:07.280Z","x_llmap_prices_newest":"2026-10-01T20:17:09.695Z","source":"https://llmap.ai/models/anthropic-claude-opus-5-5","omc_spec":"https://github.com/openmodelcard/spec"}}