Anthropic releases Claude Opus 5.5, and it's not just more powerful: it's cheaper, too
Anthropic has released Claude Opus 5.5, a new AI model that offers higher performance than its predecessor while reducing operational costs. The company claims the model performs similarly to the more advanced Claude Fable 5.1 for most tasks, making it a significant upgrade for users. Additionally, the pricing has been lowered by approximately 40%, with input tokens costing $4 per million and output tokens costing $20 per million.
- ▪Anthropic announced the release of Claude Opus 5.5 on September 22, 2026.
- ▪The new model is claimed to perform at the level of Claude Fable 5.1 for most tasks.
- ▪Claude Opus 5.5 costs 40% less to run than the previous Opus 5 model.
- ▪Input token pricing has dropped to $4 per million, and output token pricing to $20 per million.
- ▪Performance metrics show an 11-percentage-point increase in agentic coding capabilities on Terminal-Bench 4.0.
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| Original publisher | XDA Developers |
| Canonical URL | https://www.xda-developers.com/anthropic-releases-claude-opus-55-and-its-not-just-more-powerful-its-cheaper-too/ |
| Publication time | Tue, 22 Sep 2026 16:44:00 GMT |
| Retrieval time | 2026-09-22T16:48:53.220Z |
| Last seen | 2026-09-22T16:48:53.220Z |
| 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 | GgKNoilj7IXO · 2 stories |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| 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
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Excerpt limited to ~120 words for fair-use compliance. The full article is at XDA Developers.
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