# Claude Opus 5 timeline

entity: /record/claude-opus-5.md  
id: ent_claude-opus-5  


## 2026

- 2026-07-24 | context_window | 1M tokens | valid | [clm_1D95A84BC613](/claim/clm_1D95A84BC613.md)
- 2026-07-24 | model_release | Claude Opus 5 | valid | [clm_8A1FF48BDD89](/claim/clm_8A1FF48BDD89.md)
- 2026-07-24 | predecessor | [Claude Opus 4.8](/record/claude-opus-4-8.md) | valid | [clm_05B8D6F2DA38](/claim/clm_05B8D6F2DA38.md)
- 2026-07-24 | price | $5 per million input tokens | valid | [clm_BB7CC2DEC953](/claim/clm_BB7CC2DEC953.md)

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AsOf is a temporal fact ledger: a structured, dated, sourced record of what is true and what changed, built for AI retrieval.