Anthropic Claude Opus 5.5 is now available on Omnifact via Vertex AI.
Feature Drop: Claude Opus 5.5 Now Available
Published on September 22nd, 2026
Anthropic launched Claude Opus 5.5 today as the first model of the Claude 5.5 family, and it is available immediately on Omnifact. Following our integrations of Claude Opus 5 and Claude Sonnet 5, Opus 5.5 establishes a new baseline for autonomous reasoning, long-horizon task execution, and engineering workloads. It delivers this performance while reducing operational costs by 40% and generating output more than 30% faster than Opus 5.
A New Frontier in Autonomous Reasoning
Claude Opus 5.5 focuses on autonomous problem solving where sustained logic, deep context, and self-verification matter. Early testing shows significant gains across complex engineering and research tasks, including the ability to audit large codebases and execute multi-step refactoring plans with minimal supervision.
The model also addresses a key area of feedback from prior generations: communication clarity. Opus 5.5 delivers direct, structured answers that place essential conclusions up front. It avoids unnecessary jargon and repetitive summaries, making long collaboration sessions easier to review and verify.
Opus 5.5 vs Opus 5 at a Glance
Claude Opus 5.5 improves autonomous capabilities while making frontier intelligence significantly more accessible across everyday work:
| Area | Claude Opus 5.5 | Claude Opus 5 | Key Difference |
|---|---|---|---|
| Autonomous Coding | Multi-file refactoring and command-line automation | Scripting and assisted editing | Solves complex tasks with fewer retries |
| Complex Reasoning | Benchmark-leading analysis across finance and research | Deep multi-step reasoning | Sharper synthesis and self-verification |
| Response Speed | >30% faster generation | Baseline | Noticeably lower latency on long answers |
| Typical Cost | ~40% lower overall spend | Baseline | Requires less compute and fewer tokens |
| Context Window | 1M tokens | 1M tokens | Full repository and document portfolio scope |
Because Opus 5.5 reaches solutions in fewer steps and benefits from lower token pricing, typical workloads cost roughly 40% less overall than Opus 5 while generating answers over 30% faster.
European Data Residency on Vertex AI
Data protection and regulatory compliance remain non-negotiable for organizations deploying AI. Omnifact provides Claude Opus 5.5 with European hosting infrastructure through Google Cloud Vertex AI in the EU, allowing teams to benefit from frontier intelligence while satisfying GDPR requirements.
Every interaction with Claude Opus 5.5 on Omnifact is backed by our enterprise security standards:
- European Processing: Data routed through Vertex AI remains within the European Union, supporting sovereignty mandates.
- Zero Data Retention: Neither Omnifact nor Google Cloud retains customer prompts or outputs for model training.
- Privacy Filter Protection: Omnifact's rule-based and AI-powered detection pseudonymizes personal data and sensitive company records before information reaches the external model.
- 1-Million Token Context: Teams can analyze dense regulatory filings, contract portfolios, and codebases in Spaces without fragmenting documents.
Enabling Claude Opus 5.5 for Your Team
Claude Opus 5.5 is available today for organizations on Omnifact. Administrators can activate the model in the model settings and choose to activate it for the entire team or assign it to select user groups using the Premium Models permission in Group Management, maintaining central oversight over model access and department budgets.
