Claude Opus 5
ProductAnnouncementsIntroducing Claude Opus 5Jul 24, 2026Claude Opus 5 is available today. It’s the new default model on Claude Max, and the strongest model on Claude Pro.Performance and cost-effectivenessClaude Opus 5 provides greatly improved performance for the same cost as its predecessor, Opus 4.8. The charts in this section show how performance changes according to the model’s effort setting, which customers can use to optimize for intelligence or conserve tokens for faster and cheaper results.Opus 5 excels on valuable software engineering tasks.
- ▪ProductAnnouncementsIntroducing Claude Opus 5Jul 24, 2026Claude Opus 5 is available today.
- ▪It’s the new default model on Claude Max, and the strongest model on Claude Pro.Performance and cost-effectivenessClaude Opus 5 provides greatly improved performance for the same cost as its predecessor, Opus 4.8.
- ▪The charts in this section show how performance changes according to the model’s effort setting, which customers can use to optimize for intelligence or conserve tokens for faster and cheaper results.Opus 5 excels on valuable software engin
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| Original publisher | Anthropic |
| Canonical URL | https://www.anthropic.com/news/claude-opus-5 |
| Publication time | Fri, 24 Jul 2026 16:55:26 +0000 |
| Retrieval time | 2026-07-24T17:19:15.375Z |
| Last seen | 2026-07-24T17:19:15.375Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | None |
| Cluster logic | Not yet clustered, or no peer story found in the clustering window. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
ProductAnnouncementsIntroducing Claude Opus 5Jul 24, 2026Claude Opus 5 is available today. It’s a thoughtful and proactive model that comes close to the frontier intelligence of Claude Fable 5 at half the price.On coding and knowledge work evaluations like Frontier-Bench and GDPval-AA, Opus 5 is the new state-of-the-art, though it remains behind Mythos 5 on cybersecurity tasks.Opus 5 is designed to be used every day: it works more efficiently than other models. It’s the new default model on Claude Max, and the strongest model on Claude Pro.Performance and cost-effectivenessClaude Opus 5 provides greatly improved performance for the same cost as its predecessor, Opus 4.8.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at Anthropic.
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