Claude Opus 5.5 Intelligence, Performance and Price Analysis
The model supports text and image input, outputs text, and has a 1M tokens context window.Claude Opus 5.5 (Adaptive Reasoning, Max Effort, Default Fallback) scores 58 on the Artificial Analysis Intelligence Index, placing it well above average among comparable models (median: 25). See Intelligence Index methodology for further details, including a breakdown of each evaluation and how we run them.Open WeightsIndicates whether the model weights are available. Elo and 95% confidence interval bounds are clamped at 0.AA-OmniscienceAA-Omniscience IndexAA-Omniscience AccuracyAA-Omniscience Hallucination RateAA-Omniscience IndexAA-Omniscience Index (higher is better) measures knowledge reliability and hallucination.
- ▪The model supports text and image input, outputs text, and has a 1M tokens context window.Claude Opus 5.5 (Adaptive Reasoning, Max Effort, Default Fallback) scores 58 on the Artificial Analysis Intelligence Index, placing it well above aver
- ▪See Intelligence Index methodology for further details, including a breakdown of each evaluation and how we run them.Open WeightsIndicates whether the model weights are available.
- ▪Elo and 95% confidence interval bounds are clamped at 0.AA-OmniscienceAA-Omniscience IndexAA-Omniscience AccuracyAA-Omniscience Hallucination RateAA-Omniscience IndexAA-Omniscience Index (higher is better) measures knowledge reliability and
2 outlets in our directory ran this story, first to last over 11 hours. All of the coverage we found sits in one bucket: centre. That one-sidedness is itself worth noticing.
- ▪ MiMo-v2.6-Pro: Intelligence, Performance and Price Analysis — Artificialanalysis
Hacker News (Front Page) files mainly under programming. We currently carry 2,008 of its stories. Top-voted stories on Hacker News.
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Story provenance
Attribution is not the same as permission. This drawer separates discovery metadata, excerpts, WeSearch-generated summaries, reuse status, and whether the publisher receives the visit. Nothing here claims a legal grant the publisher has not made.
Record
| Original publisher | Hacker News (Front Page) |
| Canonical URL | https://artificialanalysis.ai/models/claude-opus-5-5 |
| Publication time | Tue, 22 Sep 2026 16:51:31 +0000 |
| Retrieval time | 2026-09-22T17:18:53.315Z |
| Last seen | 2026-09-22T17:18:53.315Z |
| 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 | YXQSQkuOkWUD · 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
Artificial AnalysisKArtificial AnalysisModelsCoding AgentsImage, Speech, VideoInferenceLeaderboardsAboutAI TrendsArenasKAnthropic•Claude Opus 5.5max•Proprietary model•Released September 2026Claude Opus 5.5 (Adaptive Reasoning, Max Effort, Default Fallback) Intelligence, Performance & Price AnalysisCompareTry it out API Provider Benchmarks Model summaryIntelligenceUpdated#1 / 20658Artificial Analysis Intelligence Index4 out of 4 units for Intelligence.SpeedN/AOutput tokens per secondUnknown out of 4 units for Speed.Cost#87 / 206In $4.00Out $20.00Cache Discount 95%$5.98Cost per Intelligence Index task4 out of 4 units for Cost.Verbosity#89 / 206260MOutput tokens from Intelligence Index4 out of 4 units for Verbosity.Comparison SummaryClaude Opus 5.5 (Adaptive Reasoning, Max Effort, Default…
Excerpt limited to ~120 words for fair-use compliance. The full article is at Hacker News (Front Page).
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