{"data":{"slug":"claude-opus-4-5","etype":"model","name":"Claude 4.5 (Opus / Sonnet / Haiku)","cat":"Coding","subtitle":"Anthropic's late-2025 frontier line — leading real-world coding benchmarks.","summary":"The 4.5 generation arrived tier by tier through late 2025 — Sonnet 4.5 (September), Haiku 4.5 (October), Opus 4.5 (November) — with Anthropic positioning Sonnet 4.5 and then Opus 4.5 as the strongest models available for coding, agents and computer use, at sharply reduced prices. They power Claude Code and most serious agentic-coding stacks. Parameters undisclosed.","attrs":null,"kf":{"params":"Not publicly disclosed","context":"200K–1M","weights":"Closed","modality":"Text + vision","rel_date":"2025-11","developer":"Anthropic"},"aliases":["Opus 4.5","Sonnet 4.5","Haiku 4.5","Claude 4.5"],"ticker":null,"exchange":null,"hq":null,"founded":null,"website":null,"status":"Prior generation","region":null,"asof":"2026-08-31","sources":[{"url":"https://www.anthropic.com/news/claude-opus-4-5","label":"Claude Opus 4.5"}]},"meta":{"found":true,"count":1,"served_from":"site cache (no live upstream calls)","as_of":"2026-10-14T06:02:44+00:00","disclaimer":"Research and information only — not investment advice. Structured records carry basis labels (vendor spec / reported / estimate); market quotes are delayed/indicative.","attribution":"Records compiled from vendor documentation, official filings and reputable public reporting; market quotes via financial data providers. See /data-sources."}}