Wire flash
Unverified rumors: Anthropic Sonnet 5.5 imminent, beats GPT-6 Sol, nears Astra
Editorial responsibility
- No named human review is recorded for this page.
- Source reporting is collected, normalized, translated or condensed automatically when needed.
- Automatically published source-backed update
According to a report from Chinese tech media outlet 新智元 (Xinzhiyuan), rumors are circulating on social media platform X that Anthropic's Sonnet 5.5 AI model may be released as soon as Tuesday afternoon US time. The article claims that leaked benchmark tests show Sonnet 5.5 outperforming OpenAI's GPT-6 Sol and approaching Google's Astra in performance. This follows the recent release of Opus 5.5 just days earlier. The report is based on unverified social media speculation and has not been confirmed by Anthropic. The publication date is listed as September 29, 2026.
Source report
Overview
In a sudden development, the unreleased Sonnet 5.5 model has been leaked. Early benchmark tests indicate that it significantly outperforms GPT-6 Sol and is closing in on Astra-level performance.
Key Highlights
- Sonnet 5.5 has been prematurely released or "leaked" into the wild.
- Real-world testing shows it crushing GPT-6 Sol across multiple metrics.
- Performance is now directly challenging Astra, the current frontier model.
Related Sections
- About Us
- ASI Hot Topics
- ASI Revelation Log
- ASI Benchmark
- ASI New Frontier
This article is currently being retrieved…
Source
新智元Neutral / independent
Part of this Story
Anthropic Sonnet 5.5 AI model appears in picker, imminent release indicated by user routing