{ "$schema_doc": "https://gtmstacker.com/registry/schema/entry.schema.json", "stability": "emerging", "generator": "agentic-media-registry", "generated_at": "2026-09-23T00:00:00Z", "id": "com.gtmstacker.registry/news/claude-opus-5-5", "type": "news", "slug": "claude-opus-5-5", "canonical_url": "https://gtmstacker.com/registry/news/claude-opus-5-5/", "title": "Anthropic announces Claude Opus 5.5, live on AWS, GCP and Azure", "description": "On Sep 22, 2026, Anthropic announced Claude Opus 5.5, its new flagship model, available across AWS, GCP and Azure. Published pricing is $4 per million input tokens and $20 per million output tokens, with prompt caching at $0.20 per million read and $5 per million write. Anthropic's claims of benchmark superiority, 'Fable-5.1-level on most work' and roughly 40% lower run cost than Opus 5 are vendor characterizations, not independently verified here.", "category": "ai-infrastructure", "tags": [ "ai-infrastructure", "news", "model-release", "model-selection", "pricing" ], "status": "active", "revision": 1, "content_hash": "2ba00204b3db3eca5230cef723433cf0f21b3f7315c80ee13b5f51b3a0d44208", "date_published": "2026-09-23T00:00:00Z", "date_modified": "2026-09-23T00:00:00Z", "source": { "name": "anthropic.com", "url": "https://www.anthropic.com/claude-opus-5-5" }, "one_liner": "Anthropic released Claude Opus 5.5 on AWS, GCP and Azure at $4 per million input and $20 per million output tokens.", "open_source": "no", "self_hostable": "unknown", "pricing_model": "unknown", "aliases": [], "alternatives": [], "secondary_categories": [], "last_verified": "2026-09-23", "evidence": { "claim_type": "vendor-claim", "source_id": "https://www.anthropic.com/claude-opus-5-5", "note": "Official page confirmed; corroborated by tier-1 press 2026-09-22. Announced 2026-09-22, live on AWS/GCP/Azure; pricing $4 in / $20 out per 1M tokens, cache $0.20 read / $5 write (WebFetch 2026-09-23). Vendor claims tagged, not stated as fact: benchmark superiority, 'Fable-5.1-level on most work', '~40% lower run cost than Opus 5'." }, "lead": "On Sep 22, 2026, Anthropic announced Claude Opus 5.5, its new flagship model, available across AWS, GCP and Azure. Published pricing is $4 per million input tokens and $20 per million output tokens, with prompt caching at $0.20 per million read and $5 per million write. Anthropic's claims of benchmark…", "chunks": [ { "index": 0, "heading_path": [], "est_tokens": 113, "text": "On Sep 22, 2026, Anthropic announced Claude Opus 5.5, its new flagship model, available across AWS, GCP and Azure. Published pricing is $4 per million input tokens and $20 per million output tokens, with prompt caching at $0.20 per million read and $5 per million write. Anthropic's claims of benchmark superiority, \"Fable-5.1-level on most work\" and roughly 40% lower run cost than Opus 5 are vendor characterizations, not independently verified here." }, { "index": 1, "heading_path": [ null, "Notes" ], "est_tokens": 332, "text": "is $4 per million input tokens and $20 per million output tokens, with prompt caching at $0.20 per million read and $5 per million write. Anthropic's claims of benchmark superiority, \"Fable-5.1-level on most work\" and roughly 40% lower run cost than Opus 5 are vendor characterizations, not independently verified here.\n\n- What is confirmed: Anthropic announced Claude Opus 5.5 on Sep 22, 2026, live on AWS, GCP and Azure; pricing is $4 in / $20 out per million tokens, with caching at $0.20 read / $5 write per million (official page, WebFetch 2026-09-23; corroborated by tier-1 press 2026-09-22).\n- What is vendor-claimed (tagged, not treated as fact): benchmark superiority, \"Fable-5.1-level on most work,\" and \"~40% lower run cost than Opus 5.\"\n- The GTM-stack read: for anyone running agentic workloads, a new flagship is a model-selection data point — the numbers that matter for build-vs-buy are the token prices and caching rates, which are confirmed, more than the vendor's relative-quality and cost claims, which are not. Slot the confirmed pricing into your own cost model before acting on the comparative framing. Releases the same day as OpenAI's GPT-6 Sol and Luna — a two-vendor model-refresh moment worth pricing out together.\n- Curated from the GTM Stacker signal registry (2026-09-23 pass: studio news lane)." } ], "alternates": { "markdown": "https://gtmstacker.com/registry/news/claude-opus-5-5/index.md", "html": "https://gtmstacker.com/registry/news/claude-opus-5-5/", "json": "https://gtmstacker.com/registry/news/claude-opus-5-5/index.json" }, "jsonld": { "@context": "https://schema.org", "@graph": [ { "@type": "WebSite", "@id": "https://gtmstacker.com/#website", "url": "https://gtmstacker.com/", "name": "GTM Stacker Agent Registry", "description": "A daily-updated, agent-native registry of open-source tool discoveries, tool updates, and curated news for the go-to-market / RevOps engineering niche. Machine-readable first: agents can discover, parse, page, and delta-sync it without scraping HTML.", "inLanguage": "en", "publisher": { "@id": "https://gtmstacker.com/#organization" } }, { "@type": "Organization", "@id": "https://gtmstacker.com/#organization", "name": "GTM Stacker", "url": "https://gtmstacker.com", "description": "The growth-systems practice of Theo Popov: AI-native enrichment, outbound, content engines and internal tooling for startups and venture programs. 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Published pricing is $4 per million input tokens and $20 per million output tokens, with prompt caching at $0.20 per million read and $5 per million write. Anthropic's claims of benchmark superiority, 'Fable-5.1-level on most work' and roughly 40% lower run cost than Opus 5 are vendor characterizations, not independently verified here.", "url": "https://gtmstacker.com/registry/news/claude-opus-5-5/", "isPartOf": { "@id": "https://gtmstacker.com/#website" }, "datePublished": "2026-09-23T00:00:00Z", "dateModified": "2026-09-23T00:00:00Z", "author": { "@id": "https://gtmstacker.com/#organization" }, "publisher": { "@id": "https://gtmstacker.com/#organization" } }, { "@type": "BreadcrumbList", "@id": "https://gtmstacker.com/registry/news/claude-opus-5-5/#breadcrumb", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "GTM Stacker Registry", "item": "https://gtmstacker.com/registry/" }, { "@type": "ListItem", "position": 2, "name": "AI Infrastructure", "item": "https://gtmstacker.com/registry/category/ai-infrastructure/" }, { "@type": "ListItem", "position": 3, "name": "Anthropic announces Claude Opus 5.5, live on AWS, GCP and Azure", "item": "https://gtmstacker.com/registry/news/claude-opus-5-5/" } ] } ] }, "news": { "headline": "A new Anthropic flagship — Opus 5.5 — resets the build-vs-buy and agent-cost math", "mentions": [] } }